vite

vite

Version 7.1.5
Published 8 days ago
2.27 MB
6 dependencies
MIT license

Install

npm i vite

yarn add vite

pnpm add vite

Overview

Native-ESM powered web dev build tool

Index

Variables

variable defaultAllowedOrigins

const defaultAllowedOrigins: RegExp;

The browser versions that are included in the Baseline Widely Available on 2025-05-01.
This value would be bumped on each major release of Vite.
The value is generated by pnpm generate-target script.

variable defaultClientConditions

const defaultClientConditions: readonly string[];

A special condition that would be replaced with production or development depending on NODE_ENV env variable

variable defaultClientMainFields

const defaultClientMainFields: readonly string[];

variable defaultExternalConditions

const defaultExternalConditions: readonly string[];

variable defaultServerConditions

const defaultServerConditions: readonly string[];

variable defaultServerMainFields

const defaultServerMainFields: readonly string[];

variable isWebSocketServer

const isWebSocketServer: Symbol;

variable rollupVersion

const rollupVersion: string;

variable version

const version: string;

variable WebSocketAlias

const WebSocketAlias: typeof WebSocket;

Functions

function build

build: (
    inlineConfig?: InlineConfig
) => Promise<RollupOutput | RollupOutput[] | RollupWatcher>;

Bundles a single environment for production. Returns a Promise containing the build result.

function buildErrorMessage

buildErrorMessage: (
    err: RollupError,
    args?: string[],
    includeStack?: boolean
) => string;

function createBuilder

createBuilder: (
    inlineConfig?: InlineConfig,
    useLegacyBuilder?: null | boolean
) => Promise<ViteBuilder>;

Creates a ViteBuilder to orchestrate building multiple environments.
Modifiers
- @experimental

function createFetchableDevEnvironment

createFetchableDevEnvironment: (
    name: string,
    config: ResolvedConfig,
    context: FetchableDevEnvironmentContext
) => FetchableDevEnvironment;

function createFilter

createFilter: (
    include?: FilterPattern,
    exclude?: FilterPattern,
    options?: { resolve?: string | false | null }
) => (id: string | unknown) => boolean;

function createIdResolver

createIdResolver: (
    config: ResolvedConfig,
    options?: Partial<InternalResolveOptions>
) => ResolveIdFn;

Create an internal resolver to be used in special scenarios, e.g. optimizer and handling css

function createLogger

createLogger: (level?: LogLevel, options?: LoggerOptions) => Logger;

function createProxyServer

createProxyServer: <
    TIncomingMessage extends any = any,
    TServerResponse extends any = any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server.
Examples:
httpProxy.createProxyServer({ .. }, 8000) // => '{ web: [Function], ws: [Function] ... }'
Parameter Options
Config object passed to the proxy
{Object} Proxy Proxy object with handlers for ws and web requests
public

function createRunnableDevEnvironment

createRunnableDevEnvironment: (
    name: string,
    config: ResolvedConfig,
    context?: RunnableDevEnvironmentContext
) => RunnableDevEnvironment;

function createServer

createServer: (
    inlineConfig?: InlineConfig | ResolvedConfig
) => Promise<ViteDevServer>;

function createServerHotChannel

createServerHotChannel: () => ServerHotChannel;

function createServerModuleRunner

createServerModuleRunner: (
    environment: DevEnvironment,
    options?: ServerModuleRunnerOptions
) => ModuleRunner;

Create an instance of the Vite SSR runtime that support HMR.
Modifiers
- @experimental

function createServerModuleRunnerTransport

createServerModuleRunnerTransport: (options: {
    channel: NormalizedServerHotChannel;
}) => ModuleRunnerTransport;

function defineConfig

defineConfig: {
    (config: UserConfig): UserConfig;
    (config: Promise<UserConfig>): Promise<UserConfig>;
    (config: UserConfigFnObject): UserConfigFnObject;
    (config: UserConfigFnPromise): UserConfigFnPromise;
    (config: UserConfigFn): UserConfigFn;
    (config: UserConfigExport): UserConfigExport;
};

Type helper to make it easier to use vite.config.ts accepts a direct UserConfig object, or a function that returns it. The function receives a ConfigEnv object.

function fetchModule

fetchModule: (
    environment: DevEnvironment,
    url: string,
    importer?: string,
    options?: FetchModuleOptions
) => Promise<moduleRunner_FetchResult>;

Fetch module information for Vite runner.
Modifiers
- @experimental

function formatPostcssSourceMap

formatPostcssSourceMap: (
    rawMap: ExistingRawSourceMap,
    file: string
) => Promise<ExistingRawSourceMap>;

function isCSSRequest

isCSSRequest: (request: string) => boolean;

function isFetchableDevEnvironment

isFetchableDevEnvironment: (
    environment: Environment
) => environment is FetchableDevEnvironment;

function isFileLoadingAllowed

isFileLoadingAllowed: (config: ResolvedConfig, filePath: string) => boolean;

Warning: parameters are not validated, only works with normalized absolute paths

function isFileServingAllowed

isFileServingAllowed: {
    (config: ResolvedConfig, url: string): boolean;
    (url: string, server: ViteDevServer): boolean;
};

Check if the url is allowed to be served, via the server.fs config.
Deprecated
Use the isFileLoadingAllowed function instead.

function isRunnableDevEnvironment

isRunnableDevEnvironment: (
    environment: Environment
) => environment is RunnableDevEnvironment;

function loadConfigFromFile

loadConfigFromFile: (
    configEnv: ConfigEnv,
    configFile?: string,
    configRoot?: string,
    logLevel?: LogLevel,
    customLogger?: Logger,
    configLoader?: 'bundle' | 'runner' | 'native'
) => Promise<{ path: string; config: UserConfig; dependencies: string[] } | null>;

function loadEnv

loadEnv: (
    mode: string,
    envDir: string | false,
    prefixes?: string | string[]
) => Record<string, string>;

function mergeAlias

mergeAlias: (a?: AliasOptions, b?: AliasOptions) => AliasOptions | undefined;

function mergeConfig

mergeConfig: <D extends Record<string, any>, O extends Record<string, any>>(
    defaults: D extends Function ? never : D,
    overrides: O extends Function ? never : O,
    isRoot?: boolean
) => Record<string, any>;

function moduleRunnerTransform

moduleRunnerTransform: (
    code: string,
    inMap: SourceMap | { mappings: '' } | null,
    url: string,
    originalCode: string,
    options?: ModuleRunnerTransformOptions
) => Promise<TransformResult | null>;

function normalizePath

normalizePath: (id: string) => string;

function numOpenSockets

numOpenSockets: () => number;

function optimizeDeps

optimizeDeps: (
    config: ResolvedConfig,
    force?: boolean | undefined,
    asCommand?: boolean
) => Promise<DepOptimizationMetadata>;

Scan and optimize dependencies within a project. Used by Vite CLI when running vite optimize.
Deprecated
the optimization process runs automatically and does not need to be called

function perEnvironmentState

perEnvironmentState: <State>(
    initial: (environment: Environment) => State
) => (context: PluginContext) => State;

Creates a function that hides the complexities of a WeakMap with an initial value to implement object metadata. Used by plugins to implement cross hooks per environment metadata
Modifiers
- @experimental

function preview

preview: (inlineConfig?: InlineConfig) => Promise<PreviewServer>;

Starts the Vite server in preview mode, to simulate a production deployment

function resolveConfig

resolveConfig: (
    inlineConfig: InlineConfig,
    command: 'build' | 'serve',
    defaultMode?: string,
    defaultNodeEnv?: string,
    isPreview?: boolean
) => Promise<ResolvedConfig>;

function resolveEnvPrefix

resolveEnvPrefix: ({ envPrefix }: UserConfig) => string[];

function runnerImport

runnerImport: <T>(
    moduleId: string,
    inlineConfig?: InlineConfig
) => Promise<RunnerImportResult<T>>;

Import any file using the default Vite environment.
Modifiers
- @experimental

function searchForWorkspaceRoot

searchForWorkspaceRoot: (current: string, root?: string) => string;

Search up for the nearest workspace root

function send

send: (
    req: http.IncomingMessage,
    res: ServerResponse,
    content: string | Buffer,
    type: string,
    options: SendOptions
) => void;

function sortUserPlugins

sortUserPlugins: (
    plugins: (Plugin$1 | Plugin$1[])[] | undefined
) => [Plugin$1[], Plugin$1[], Plugin$1[]];

Resolve base url. Note that some users use Vite to build for non-web targets like electron or expects to deploy

function transformWithEsbuild

transformWithEsbuild: (
    code: string,
    filename: string,
    options?: esbuild_TransformOptions,
    inMap?: object,
    config?: ResolvedConfig,
    watcher?: FSWatcher
) => Promise<ESBuildTransformResult>;

Classes

class BuildEnvironment

class BuildEnvironment extends BaseEnvironment {}

constructor

constructor(
    name: string,
    config: ResolvedConfig,
    setup?: { options?: EnvironmentOptions }
);

property isBuilt

isBuilt: boolean;

property mode

mode: string;

method init

init: () => Promise<void>;

class DevEnvironment

class DevEnvironment extends BaseEnvironment {}

constructor

constructor(
    name: string,
    config: ResolvedConfig,
    context: DevEnvironmentContext
);

property depsOptimizer

depsOptimizer?: DepsOptimizer;

property hot

hot: NormalizedHotChannel<any>;

Hot channel for this environment. If not provided or disabled, it will be a noop channel that does nothing.
Example 1
environment.hot.send({ type: 'full-reload' })

property mode

mode: string;

property moduleGraph

moduleGraph: EnvironmentModuleGraph;

property pluginContainer

readonly pluginContainer: EnvironmentPluginContainer<DevEnvironment>;

method close

close: () => Promise<void>;

method fetchModule

fetchModule: (
    id: string,
    importer?: string,
    options?: FetchFunctionOptions
) => Promise<moduleRunner_FetchResult>;

method init

init: (options?: {
    watcher?: FSWatcher;
    previousInstance?: DevEnvironment;
}) => Promise<void>;

method listen

listen: (server: ViteDevServer) => Promise<void>;

When the dev server is restarted, the methods are called in the following order: - new instance init - previous instance close - new instance listen

method reloadModule

reloadModule: (module: EnvironmentModuleNode) => Promise<void>;

method transformRequest

transformRequest: (url: string) => Promise<TransformResult | null>;

method waitForRequestsIdle

waitForRequestsIdle: (ignoredId?: string) => Promise<void>;

Calling await environment.waitForRequestsIdle(id) will wait until all static imports are processed after the first transformRequest call. If called from a load or transform plugin hook, the id needs to be passed as a parameter to avoid deadlocks. Calling this function after the first static imports section of the module graph has been processed will resolve immediately.
Modifiers
- @experimental

method warmupRequest

warmupRequest: (url: string) => Promise<void>;

class EnvironmentModuleGraph

class EnvironmentModuleGraph {}

constructor

constructor(
    environment: string,
    resolveId: (url: string) => Promise<PartialResolvedId | null>
);

property environment

environment: string;

property etagToModuleMap

etagToModuleMap: Map<string, EnvironmentModuleNode>;

property fileToModulesMap

fileToModulesMap: Map<string, Set<EnvironmentModuleNode>>;

property idToModuleMap

idToModuleMap: Map<string, EnvironmentModuleNode>;

property urlToModuleMap

urlToModuleMap: Map<string, EnvironmentModuleNode>;

method createFileOnlyEntry

createFileOnlyEntry: (file: string) => EnvironmentModuleNode;

method ensureEntryFromUrl

ensureEntryFromUrl: (
    rawUrl: string,
    setIsSelfAccepting?: boolean
) => Promise<EnvironmentModuleNode>;

method getModuleByEtag

getModuleByEtag: (etag: string) => EnvironmentModuleNode | undefined;

method getModuleById

getModuleById: (id: string) => EnvironmentModuleNode | undefined;

method getModuleByUrl

getModuleByUrl: (rawUrl: string) => Promise<EnvironmentModuleNode | undefined>;

method getModulesByFile

getModulesByFile: (file: string) => Set<EnvironmentModuleNode> | undefined;

method invalidateAll

invalidateAll: () => void;

method invalidateModule

invalidateModule: (
    mod: EnvironmentModuleNode,
    seen?: Set<EnvironmentModuleNode>,
    timestamp?: number,
    isHmr?: boolean
) => void;

method onFileChange

onFileChange: (file: string) => void;

method onFileDelete

onFileDelete: (file: string) => void;

method resolveUrl

resolveUrl: (url: string) => Promise<ResolvedUrl>;

method updateModuleInfo

updateModuleInfo: (
    mod: EnvironmentModuleNode,
    importedModules: Set<string | EnvironmentModuleNode>,
    importedBindings: Map<string, Set<string>> | null,
    acceptedModules: Set<string | EnvironmentModuleNode>,
    acceptedExports: Set<string> | null,
    isSelfAccepting: boolean
) => Promise<Set<EnvironmentModuleNode> | undefined>;

Update the module graph based on a module's updated imports information If there are dependencies that no longer have any importers, they are returned as a Set.
Parameter staticImportedUrls
Subset of importedModules where they're statically imported in code. This is only used for soft invalidations so undefined is fine but may cause more runtime processing.

method updateModuleTransformResult

updateModuleTransformResult: (
    mod: EnvironmentModuleNode,
    result: TransformResult | null
) => void;

class EnvironmentModuleNode

class EnvironmentModuleNode {}

constructor

constructor(url: string, environment: string, setIsSelfAccepting?: boolean);

Parameter setIsSelfAccepting
set false to set isSelfAccepting later. e.g. #7870

property acceptedHmrDeps

acceptedHmrDeps: Set<EnvironmentModuleNode>;

property acceptedHmrExports

acceptedHmrExports: Set<string>;

property environment

environment: string;

property file

file: string;

property id

id: string;

Resolved file system path + query

property importedBindings

importedBindings: Map<string, Set<string>>;

property importedModules

importedModules: Set<EnvironmentModuleNode>;

property importers

importers: Set<EnvironmentModuleNode>;

property info

info?: ModuleInfo;

property isSelfAccepting

isSelfAccepting?: boolean;

property lastHMRTimestamp

lastHMRTimestamp: number;

property lastInvalidationTimestamp

lastInvalidationTimestamp: number;

property meta

meta?: Record<string, any>;

property ssrError

ssrError: Error;

property ssrModule

ssrModule: Record<string, any>;

property transformResult

transformResult: TransformResult;

property type

type: 'js' | 'css' | 'asset';

property url

url: string;

Public served url path, starts with /

class FetchableDevEnvironment

class FetchableDevEnvironment extends DevEnvironment {}

constructor

constructor(
    name: string,
    config: ResolvedConfig,
    context: FetchableDevEnvironmentContext
);

method dispatchFetch

dispatchFetch: (request: Request) => Promise<Response>;

class FSWatcher

class FSWatcher extends EventEmitter implements fs.FSWatcher {}

constructor

constructor(options?: WatchOptions);

Constructs a new FSWatcher instance with optional WatchOptions parameter.

property options

options: WatchOptions;

method add

add: (paths: string | ReadonlyArray<string>) => this;

Add files, directories, or glob patterns for tracking. Takes an array of strings or just one string.

method close

close: () => Promise<void>;

Removes all listeners from watched files.

method getWatched

getWatched: () => { [directory: string]: string[] };

Returns an object representing all the paths on the file system being watched by this FSWatcher instance. The object's keys are all the directories (using absolute paths unless the cwd option was used), and the values are arrays of the names of the items contained in each directory.

method on

on: {
    (
        event: 'add' | 'addDir' | 'change',
        listener: (path: string, stats?: fs.Stats) => void
    ): this;
    (
        event: 'all',
        listener: (
            eventName: 'add' | 'addDir' | 'change' | 'unlink' | 'unlinkDir',
            path: string,
            stats?: fs.Stats
        ) => void
    ): this;
    (event: 'error', listener: (error: Error) => void): this;
    (
        event: 'raw',
        listener: (eventName: string, path: string, details: any) => void
    ): this;
    (event: 'ready', listener: () => void): this;
    (event: 'unlink' | 'unlinkDir', listener: (path: string) => void): this;
    (event: string, listener: (...args: any[]) => void): this;
};

Error occurred
Exposes the native Node fs.FSWatcher events
Fires when the initial scan is complete

method ref

ref: () => this;

When called, requests that the Node.js event loop not exit so long as the fs.FSWatcher is active. Calling watcher.ref() multiple times will have no effect.

method unref

unref: () => this;

When called, the active fs.FSWatcher object will not require the Node.js event loop to remain active. If there is no other activity keeping the event loop running, the process may exit before the fs.FSWatcher object's callback is invoked. Calling watcher.unref() multiple times will have no effect.

method unwatch

unwatch: (paths: string | ReadonlyArray<string>) => this;

Stop watching files, directories, or glob patterns. Takes an array of strings or just one string.

class ModuleGraph

class ModuleGraph {}

constructor

constructor(moduleGraphs: {
    client: () => EnvironmentModuleGraph;
    ssr: () => EnvironmentModuleGraph;
});

property etagToModuleMap

etagToModuleMap: Map<string, ModuleNode>;

property fileToModulesMap

fileToModulesMap: Map<string, Set<ModuleNode>>;

property idToModuleMap

idToModuleMap: Map<string, ModuleNode>;

property urlToModuleMap

urlToModuleMap: Map<string, ModuleNode>;

method createFileOnlyEntry

createFileOnlyEntry: (file: string) => ModuleNode;

method ensureEntryFromUrl

ensureEntryFromUrl: (
    rawUrl: string,
    ssr?: boolean,
    setIsSelfAccepting?: boolean
) => Promise<ModuleNode>;

method getBackwardCompatibleBrowserModuleNode

getBackwardCompatibleBrowserModuleNode: (
    clientModule: EnvironmentModuleNode
) => ModuleNode;

method getBackwardCompatibleModuleNode

getBackwardCompatibleModuleNode: (mod: EnvironmentModuleNode) => ModuleNode;

method getBackwardCompatibleModuleNodeDual

getBackwardCompatibleModuleNodeDual: (
    clientModule?: EnvironmentModuleNode,
    ssrModule?: EnvironmentModuleNode
) => ModuleNode;

method getBackwardCompatibleServerModuleNode

getBackwardCompatibleServerModuleNode: (
    ssrModule: EnvironmentModuleNode
) => ModuleNode;

method getModuleByEtag

getModuleByEtag: (etag: string) => ModuleNode | undefined;

method getModuleById

getModuleById: (id: string) => ModuleNode | undefined;

method getModuleByUrl

getModuleByUrl: (url: string, _ssr?: boolean) => Promise<ModuleNode | undefined>;

method getModulesByFile

getModulesByFile: (file: string) => Set<ModuleNode> | undefined;

method invalidateAll

invalidateAll: () => void;

method invalidateModule

invalidateModule: (
    mod: ModuleNode,
    seen?: Set<ModuleNode>,
    timestamp?: number,
    isHmr?: boolean
) => void;

method onFileChange

onFileChange: (file: string) => void;

method onFileDelete

onFileDelete: (file: string) => void;

method resolveUrl

resolveUrl: (url: string, ssr?: boolean) => Promise<ResolvedUrl>;

method updateModuleTransformResult

updateModuleTransformResult: (
    mod: ModuleNode,
    result: TransformResult | null,
    ssr?: boolean
) => void;

class ModuleNode

class ModuleNode {}

constructor

constructor(
    moduleGraph: ModuleGraph,
    clientModule?: EnvironmentModuleNode,
    ssrModule?: EnvironmentModuleNode
);

property acceptedHmrDeps

readonly acceptedHmrDeps: Set<ModuleNode>;

property acceptedHmrExports

readonly acceptedHmrExports: Set<string>;

property clientImportedModules

readonly clientImportedModules: Set<ModuleNode>;

property file

file: string;

property id

id: string;

property importedBindings

readonly importedBindings: Map<string, Set<string>>;

property importedModules

readonly importedModules: Set<ModuleNode>;

property importers

readonly importers: Set<ModuleNode>;

property info

readonly info: any;

property invalidationState

readonly invalidationState: TransformResult | 'HARD_INVALIDATED';

property isSelfAccepting

readonly isSelfAccepting: boolean;

property lastHMRTimestamp

lastHMRTimestamp: number;

property lastInvalidationTimestamp

readonly lastInvalidationTimestamp: number;

property meta

readonly meta: Record<string, any>;

property ssrError

readonly ssrError: Error;

property ssrImportedModules

readonly ssrImportedModules: Set<ModuleNode>;

property ssrInvalidationState

readonly ssrInvalidationState: TransformResult | 'HARD_INVALIDATED';

property ssrModule

readonly ssrModule: Record<string, any>;

property ssrTransformResult

ssrTransformResult: TransformResult;

property transformResult

transformResult: TransformResult;

property type

readonly type: 'js' | 'css' | 'asset';

property url

url: string;

class PluginContainer

class PluginContainer {}

constructor

constructor(environments: Record<string, Environment>);

property options

readonly options: InputOptions;

method buildStart

buildStart: (_options?: InputOptions) => Promise<void>;

method close

close: () => Promise<void>;

method getModuleInfo

getModuleInfo: (id: string) => ModuleInfo | null;

method load

load: (id: string, options?: { ssr?: boolean }) => Promise<LoadResult | null>;

method resolveId

resolveId: (
    rawId: string,
    importer?: string,
    options?: {
        attributes?: Record<string, string>;
        custom?: CustomPluginOptions;
        skip?: Set<Plugin$1>;
        skipCalls?: readonly SkipInformation[];
        ssr?: boolean;
        isEntry?: boolean;
    }
) => Promise<PartialResolvedId | null>;

method transform

transform: (
    code: string,
    id: string,
    options?: {
        ssr?: boolean;
        environment?: Environment;
        inMap?: SourceDescription['map'];
    }
) => Promise<{ code: string; map: SourceMap | { mappings: '' } | null }>;

method watchChange

watchChange: (
    id: string,
    change: { event: 'create' | 'update' | 'delete' }
) => Promise<void>;

class RunnableDevEnvironment

class RunnableDevEnvironment extends DevEnvironment {}

constructor

constructor(
    name: string,
    config: ResolvedConfig,
    context: RunnableDevEnvironmentContext
);

property runner

readonly runner: ModuleRunner;

method close

close: () => Promise<void>;

class WebSocket

class WebSocket extends EventEmitter {}

constructor

constructor(address: null);

constructor

constructor(address: any, options?: any);

constructor

constructor(address: any, protocols?: string | string[], options?: any);

property binaryType

binaryType: 'nodebuffer' | 'arraybuffer' | 'fragments';

property bufferedAmount

readonly bufferedAmount: number;

property CLOSED

static readonly CLOSED: number;

The connection is closed.

property CLOSED

readonly CLOSED: number;

The connection is closed.

property CLOSING

static readonly CLOSING: number;

The connection is in the process of closing.

property CLOSING

readonly CLOSING: number;

The connection is in the process of closing.

property extensions

readonly extensions: string;

property isPaused

readonly isPaused: boolean;

Indicates whether the websocket is paused

property onclose

onclose: (event: WebSocket.CloseEvent) => void;

property onerror

onerror: (event: WebSocket.ErrorEvent) => void;

property onmessage

onmessage: (event: WebSocket.MessageEvent) => void;

property onopen

onopen: (event: WebSocket.Event) => void;

property OPEN

static readonly OPEN: number;

The connection is open and ready to communicate.

property OPEN

readonly OPEN: number;

The connection is open and ready to communicate.

property protocol

readonly protocol: string;

property url

readonly url: string;

method addEventListener

addEventListener: {
    (
        method: 'message',
        cb: (event: WebSocket.MessageEvent) => void,
        options?: WebSocket.EventListenerOptions
    ): void;
    (
        method: 'close',
        cb: (event: WebSocket.CloseEvent) => void,
        options?: WebSocket.EventListenerOptions
    ): void;
    (
        method: 'error',
        cb: (event: WebSocket.ErrorEvent) => void,
        options?: WebSocket.EventListenerOptions
    ): void;
    (
        method: 'open',
        cb: (event: WebSocket.Event) => void,
        options?: WebSocket.EventListenerOptions
    ): void;
};

method addListener

addListener: {
    (event: 'close', listener: (code: number, reason: Buffer) => void): this;
    (event: 'error', listener: (err: Error) => void): this;
    (event: 'upgrade', listener: (request: http.IncomingMessage) => void): this;
    (event: 'message', listener: (data: any, isBinary: boolean) => void): this;
    (event: 'open', listener: () => void): this;
    (event: 'ping' | 'pong', listener: (data: Buffer) => void): this;
    (
        event: 'unexpected-response',
        listener: (
            request: ClientRequest,
            response: http.IncomingMessage
        ) => void
    ): this;
    (event: string | symbol, listener: (...args: any[]) => void): this;
};

method close

close: (code?: number, data?: string | Buffer) => void;

method off

off: {
    (
        event: 'close',
        listener: (this: WebSocket, code: number, reason: Buffer) => void
    ): this;
    (event: 'error', listener: (this: WebSocket, err: Error) => void): this;
    (
        event: 'upgrade',
        listener: (this: WebSocket, request: http.IncomingMessage) => void
    ): this;
    (
        event: 'message',
        listener: (this: WebSocket, data: any, isBinary: boolean) => void
    ): this;
    (event: 'open', listener: (this: WebSocket) => void): this;
    (
        event: 'ping' | 'pong',
        listener: (this: WebSocket, data: Buffer) => void
    ): this;
    (
        event: 'unexpected-response',
        listener: (
            this: WebSocket,
            request: ClientRequest,
            response: http.IncomingMessage
        ) => void
    ): this;
    (
        event: string | symbol,
        listener: (this: WebSocket, ...args: any[]) => void
    ): this;
};

method on

on: {
    (
        event: 'close',
        listener: (this: WebSocket, code: number, reason: Buffer) => void
    ): this;
    (event: 'error', listener: (this: WebSocket, err: Error) => void): this;
    (
        event: 'upgrade',
        listener: (this: WebSocket, request: http.IncomingMessage) => void
    ): this;
    (
        event: 'message',
        listener: (this: WebSocket, data: any, isBinary: boolean) => void
    ): this;
    (event: 'open', listener: (this: WebSocket) => void): this;
    (
        event: 'ping' | 'pong',
        listener: (this: WebSocket, data: Buffer) => void
    ): this;
    (
        event: 'unexpected-response',
        listener: (
            this: WebSocket,
            request: ClientRequest,
            response: http.IncomingMessage
        ) => void
    ): this;
    (
        event: string | symbol,
        listener: (this: WebSocket, ...args: any[]) => void
    ): this;
};

method once

once: {
    (
        event: 'close',
        listener: (this: WebSocket, code: number, reason: Buffer) => void
    ): this;
    (event: 'error', listener: (this: WebSocket, err: Error) => void): this;
    (
        event: 'upgrade',
        listener: (this: WebSocket, request: http.IncomingMessage) => void
    ): this;
    (
        event: 'message',
        listener: (this: WebSocket, data: any, isBinary: boolean) => void
    ): this;
    (event: 'open', listener: (this: WebSocket) => void): this;
    (
        event: 'ping' | 'pong',
        listener: (this: WebSocket, data: Buffer) => void
    ): this;
    (
        event: 'unexpected-response',
        listener: (
            this: WebSocket,
            request: ClientRequest,
            response: http.IncomingMessage
        ) => void
    ): this;
    (
        event: string | symbol,
        listener: (this: WebSocket, ...args: any[]) => void
    ): this;
};

method pause

pause: () => void;

Pause the websocket causing it to stop emitting events. Some events can still be emitted after this is called, until all buffered data is consumed. This method is a noop if the ready state is CONNECTING or CLOSED.

method ping

ping: (data?: any, mask?: boolean, cb?: (err: Error) => void) => void;

method pong

pong: (data?: any, mask?: boolean, cb?: (err: Error) => void) => void;

method removeEventListener

removeEventListener: {
    (method: 'message', cb: (event: WebSocket.MessageEvent) => void): void;
    (method: 'close', cb: (event: WebSocket.CloseEvent) => void): void;
    (method: 'error', cb: (event: WebSocket.ErrorEvent) => void): void;
    (method: 'open', cb: (event: WebSocket.Event) => void): void;
};

method removeListener

removeListener: {
    (event: 'close', listener: (code: number, reason: Buffer) => void): this;
    (event: 'error', listener: (err: Error) => void): this;
    (event: 'upgrade', listener: (request: http.IncomingMessage) => void): this;
    (event: 'message', listener: (data: any, isBinary: boolean) => void): this;
    (event: 'open', listener: () => void): this;
    (event: 'ping' | 'pong', listener: (data: Buffer) => void): this;
    (
        event: 'unexpected-response',
        listener: (
            request: ClientRequest,
            response: http.IncomingMessage
        ) => void
    ): this;
    (event: string | symbol, listener: (...args: any[]) => void): this;
};

method resume

resume: () => void;

Make a paused socket resume emitting events. This method is a noop if the ready state is CONNECTING or CLOSED.

method send

send: {
    (data: any, cb?: (err?: Error) => void): void;
    (
        data: any,
        options: {
            mask?: boolean;
            binary?: boolean;
            compress?: boolean;
            fin?: boolean;
        },
        cb?: (err?: Error) => void
    ): void;
};

method terminate

terminate: () => void;

Interfaces

interface Alias

interface Alias {}

property customResolver

customResolver?: ResolverFunction | ResolverObject | null;

Instructs the plugin to use an alternative resolving algorithm, rather than the Rollup's resolver. null

property find

find: string | RegExp;

property replacement

replacement: string;

interface BuildEnvironmentOptions

interface BuildEnvironmentOptions {}

property assetsDir

assetsDir?: string;

Directory relative from outDir where the built js/css/image assets will be placed. 'assets'

property assetsInlineLimit

assetsInlineLimit?:
    | number
    | ((filePath: string, content: Buffer) => boolean | undefined);

Static asset files smaller than this number (in bytes) will be inlined as base64 strings. If a callback is passed, a boolean can be returned to opt-in or opt-out of inlining. If nothing is returned the default logic applies.
Default limit is 4096 (4 KiB). Set to 0 to disable. 4096

property chunkSizeWarningLimit

chunkSizeWarningLimit?: number;

Adjust chunk size warning limit (in kB). 500

property commonjsOptions

commonjsOptions?: RollupCommonJSOptions;

Options to pass on to @rollup/plugin-commonjs

property copyPublicDir

copyPublicDir?: boolean;

Copy the public directory to outDir on write. true

property cssCodeSplit

cssCodeSplit?: boolean;

Whether to code-split CSS. When enabled, CSS in async chunks will be inlined as strings in the chunk and inserted via dynamically created style tags when the chunk is loaded. true

property cssMinify

cssMinify?: boolean | 'esbuild' | 'lightningcss';

Override CSS minification specifically instead of defaulting to build.minify, so you can configure minification for JS and CSS separately. 'esbuild'

property cssTarget

cssTarget?: esbuild_TransformOptions['target'] | false;

An optional separate target for CSS minification. As esbuild only supports configuring targets to mainstream browsers, users may need this option when they are targeting a niche browser that comes with most modern JavaScript features but has poor CSS support, e.g. Android WeChat WebView, which doesn't support the #RGBA syntax. target

property dynamicImportVarsOptions

dynamicImportVarsOptions?: RollupDynamicImportVarsOptions;

Options to pass on to @rollup/plugin-dynamic-import-vars

property emitAssets

emitAssets?: boolean;

Emit assets during build. Frameworks can set environments.ssr.build.emitAssets By default, it is true for the client and false for other environments.

property emptyOutDir

emptyOutDir?: boolean | null;

Empty outDir on write. true when outDir is a sub directory of project root

property lib

lib?: LibraryOptions | false;

Build in library mode. The value should be the global name of the lib in UMD mode. This will produce esm + cjs + umd bundle formats with default configurations that are suitable for distributing libraries. false

property manifest

manifest?: boolean | string;

Whether to emit a .vite/manifest.json in the output dir to map hash-less filenames to their hashed versions. Useful when you want to generate your own HTML instead of using the one generated by Vite.
Example:
{ "main.js": { "file": "main.68fe3fad.js", "css": "main.e6b63442.css", "imports": [...], "dynamicImports": [...] } }
false

property minify

minify?: boolean | 'terser' | 'esbuild';

Set to false to disable minification, or specify the minifier to use. Available options are 'terser' or 'esbuild'. 'esbuild'

property modulePreload

modulePreload?: boolean | ModulePreloadOptions;

Configure module preload Note: does not apply to library mode. true

property outDir

outDir?: string;

Directory relative from root where build output will be placed. If the directory exists, it will be removed before the build. 'dist'

property polyfillModulePreload

polyfillModulePreload?: boolean;

whether to inject module preload polyfill. Note: does not apply to library mode. true
Deprecated
use modulePreload.polyfill instead

property reportCompressedSize

reportCompressedSize?: boolean;

Set to false to disable reporting compressed chunk sizes. Can slightly improve build speed. true

property rollupOptions

rollupOptions?: RollupOptions;

Will be merged with internal rollup options. https://rollupjs.org/configuration-options/

property sourcemap

sourcemap?: boolean | 'inline' | 'hidden';

If true, a separate sourcemap file will be created. If 'inline', the sourcemap will be appended to the resulting output file as data URI. 'hidden' works like true except that the corresponding sourcemap comments in the bundled files are suppressed. false

property ssr

ssr?: boolean | string;

Produce SSR oriented build. Note this requires specifying SSR entry via rollupOptions.input. false

property ssrManifest

ssrManifest?: boolean | string;

Generate SSR manifest for determining style links and asset preload directives in production. false

property target

target?:
    | 'baseline-widely-available'
    | esbuild_TransformOptions['target']
    | false;

Compatibility transform target. The transform is performed with esbuild and the lowest supported target is es2015. Note this only handles syntax transformation and does not cover polyfills
Default: 'baseline-widely-available' - transpile targeting browsers that are included in the Baseline Widely Available on 2025-05-01. (Chrome 107+, Edge 107+, Firefox 104+, Safari 16+).
Another special value is 'esnext' - which only performs minimal transpiling (for minification compat).
For custom targets, see https://esbuild.github.io/api/#target and https://esbuild.github.io/content-types/#javascript for more details. 'baseline-widely-available'

property terserOptions

terserOptions?: TerserOptions;

Options for terser https://terser.org/docs/api-reference#minify-options
In addition, you can also pass a maxWorkers: number option to specify the max number of workers to spawn. Defaults to the number of CPUs minus 1.

property watch

watch?: WatcherOptions | null;

Rollup watch options https://rollupjs.org/configuration-options/#watch null

property write

write?: boolean;

Whether to write bundle to disk true

interface BuilderOptions

interface BuilderOptions {}

property buildApp

buildApp?: (builder: ViteBuilder) => Promise<void>;

property sharedConfigBuild

sharedConfigBuild?: boolean;

Whether to share the config instance among environments to align with the behavior of dev server.
false
Modifiers
- @experimental

property sharedPlugins

sharedPlugins?: boolean;

Whether to share the plugin instances among environments to align with the behavior of dev server.
false
Modifiers
- @experimental

interface ChunkMetadata

interface ChunkMetadata {}

property importedAssets

importedAssets: Set<string>;

property importedCss

importedCss: Set<string>;

interface CommonServerOptions

interface CommonServerOptions {}

property allowedHosts

allowedHosts?: string[] | true;

The hostnames that Vite is allowed to respond to. localhost and subdomains under .localhost and all IP addresses are allowed by default. When using HTTPS, this check is skipped.
If a string starts with ., it will allow that hostname without the . and all subdomains under the hostname. For example, .example.com will allow example.com, foo.example.com, and foo.bar.example.com.
If set to true, the server is allowed to respond to requests for any hosts. This is not recommended as it will be vulnerable to DNS rebinding attacks.

property cors

cors?: CorsOptions | boolean;

Configure CORS for the dev server. Uses https://github.com/expressjs/cors.
When enabling this option, **we recommend setting a specific value rather than true** to avoid exposing the source code to untrusted origins.
Set to true to allow all methods from any origin, or configure separately using an object.
false

property headers

headers?: OutgoingHttpHeaders;

Specify server response headers.

property host

host?: string | boolean;

Specify which IP addresses the server should listen on. Set to 0.0.0.0 to listen on all addresses, including LAN and public addresses.

property https

https?: HttpsServerOptions;

Enable TLS + HTTP/2. Note: this downgrades to TLS only when the proxy option is also used.

property open

open?: boolean | string;

Open browser window on startup

property port

port?: number;

Specify server port. Note if the port is already being used, Vite will automatically try the next available port so this may not be the actual port the server ends up listening on.

property proxy

proxy?: Record<string, string | ProxyOptions>;

Configure custom proxy rules for the dev server. Expects an object of { key: options } pairs. Uses [http-proxy-3](https://github.com/sagemathinc/http-proxy-3). Full options [here](https://github.com/sagemathinc/http-proxy-3#options).

Example vite.config.js:

module.exports = {
  proxy: {
    // string shorthand: /foo -> http://localhost:4567/foo
    '/foo': 'http://localhost:4567',
    // with options
    '/api': {
      target: 'http://jsonplaceholder.typicode.com',
      changeOrigin: true,
      rewrite: path => path.replace(/^\/api/, '')
    }
  }
}

property strictPort

strictPort?: boolean;

If enabled, vite will exit if specified port is already in use

interface ConfigEnv

interface ConfigEnv {}

property command

command: 'build' | 'serve';

'serve': during dev (vite command) 'build': when building for production (vite build command)

property isPreview

isPreview?: boolean;

property isSsrBuild

isSsrBuild?: boolean;

property mode

mode: string;

interface ConfigPluginContext

interface ConfigPluginContext
    extends Omit<MinimalPluginContext, 'meta' | 'environment'> {}

property meta

meta: Omit<PluginContextMeta, 'watchMode'>;

interface ConnectedPayload

interface ConnectedPayload {}

property type

type: 'connected';

interface CorsOptions

interface CorsOptions {}

https://github.com/expressjs/cors#configuration-options

property allowedHeaders

allowedHeaders?: string | string[];

property credentials

credentials?: boolean;

property exposedHeaders

exposedHeaders?: string | string[];

property maxAge

maxAge?: number;

property methods

methods?: string | string[];

property optionsSuccessStatus

optionsSuccessStatus?: number;

property origin

origin?:
    | CorsOrigin
    | ((
          origin: string | undefined,
          cb: (err: Error, origins: CorsOrigin) => void
      ) => void);

Configures the Access-Control-Allow-Origin CORS header.
**We recommend setting a specific value rather than true** to avoid exposing the source code to untrusted origins.

property preflightContinue

preflightContinue?: boolean;

interface CSSModulesOptions

interface CSSModulesOptions {}

property exportGlobals

exportGlobals?: boolean;

property generateScopedName

generateScopedName?:
    | string
    | ((name: string, filename: string, css: string) => string);

property getJSON

getJSON?: (
    cssFileName: string,
    json: Record<string, string>,
    outputFileName: string
) => void;

property globalModulePaths

globalModulePaths?: RegExp[];

property hashPrefix

hashPrefix?: string;

property localsConvention

localsConvention?:
    | 'camelCase'
    | 'camelCaseOnly'
    | 'dashes'
    | 'dashesOnly'
    | ((
          originalClassName: string,
          generatedClassName: string,
          inputFile: string
      ) => string);

default: undefined

property scopeBehaviour

scopeBehaviour?: 'global' | 'local';

interface CSSOptions

interface CSSOptions {}

property devSourcemap

devSourcemap?: boolean;

Enables css sourcemaps during dev false
Modifiers
- @experimental

property lightningcss

lightningcss?: lightningcssOptions_LightningCSSOptions;

Modifiers
- @experimental

property modules

modules?: CSSModulesOptions | false;

https://github.com/css-modules/postcss-modules

property postcss

postcss?:
    | string
    | (PostCSS.ProcessOptions & {
          plugins?: PostCSS.AcceptedPlugin[];
      });

property preprocessorMaxWorkers

preprocessorMaxWorkers?: number | true;

If this option is set, preprocessors will run in workers when possible. true means the number of CPUs minus 1.
true

property preprocessorOptions

preprocessorOptions?: {
    scss?: SassPreprocessorOptions;
    sass?: SassPreprocessorOptions;
    less?: LessPreprocessorOptions;
    styl?: StylusPreprocessorOptions;
    stylus?: StylusPreprocessorOptions;
};

Options for preprocessors.
In addition to options specific to each processors, Vite supports additionalData option. The additionalData option can be used to inject extra code for each style content.

property transformer

transformer?: 'postcss' | 'lightningcss';

Using lightningcss is an experimental option to handle CSS modules, assets and imports via Lightning CSS. It requires to install it as a peer dependency.
'postcss'
Modifiers
- @experimental

interface CustomEventMap

interface CustomEventMap {}

property 'vite:afterUpdate'

'vite:afterUpdate': UpdatePayload;

property 'vite:beforeFullReload'

'vite:beforeFullReload': FullReloadPayload;

property 'vite:beforePrune'

'vite:beforePrune': PrunePayload;

property 'vite:beforeUpdate'

'vite:beforeUpdate': UpdatePayload;

property 'vite:error'

'vite:error': ErrorPayload;

property 'vite:invalidate'

'vite:invalidate': InvalidatePayload;

property 'vite:ws:connect'

'vite:ws:connect': WebSocketConnectionPayload;

property 'vite:ws:disconnect'

'vite:ws:disconnect': WebSocketConnectionPayload;

interface CustomPayload

interface CustomPayload {}

property data

data?: any;

property event

event: string;

property type

type: 'custom';

interface CustomPluginOptionsVite

interface CustomPluginOptionsVite {}

property cssScopeTo

cssScopeTo?: readonly [importerId: string, exportName: string | undefined];

If this is a CSS Rollup module, you can scope to its importer's exports so that if those exports are treeshaken away, the CSS module will also be treeshaken.
The "importerId" must import the CSS Rollup module statically.
Example config if the CSS id is /src/App.vue?vue&type=style&lang.css:
cssScopeTo: ['/src/App.vue', 'default']

property lang

lang?: string;

Deprecated
no-op since Vite 6.1

interface DepOptimizationConfig

interface DepOptimizationConfig {}

property disabled

disabled?: boolean | 'build' | 'dev';

Deps optimization during build was removed in Vite 5.1. This option is now redundant and will be removed in a future version. Switch to using optimizeDeps.noDiscovery and an empty or undefined optimizeDeps.include. true or 'dev' disables the optimizer, false or 'build' leaves it enabled. 'build'
Modifiers
- @experimental
Deprecated

property esbuildOptions

esbuildOptions?: Omit<
    esbuild_BuildOptions,
    | 'bundle'
    | 'entryPoints'
    | 'external'
    | 'write'
    | 'watch'
    | 'outdir'
    | 'outfile'
    | 'outbase'
    | 'outExtension'
    | 'metafile'
>;

Options to pass to esbuild during the dep scanning and optimization
Certain options are omitted since changing them would not be compatible with Vite's dep optimization.
- external is also omitted, use Vite's optimizeDeps.exclude option - plugins are merged with Vite's dep plugin
https://esbuild.github.io/api

property exclude

exclude?: string[];

Do not optimize these dependencies (must be resolvable import paths, cannot be globs).

property extensions

extensions?: string[];

List of file extensions that can be optimized. A corresponding esbuild plugin must exist to handle the specific extension.
By default, Vite can optimize .mjs, .js, .ts, and .mts files. This option allows specifying additional extensions.
Modifiers
- @experimental

property holdUntilCrawlEnd

holdUntilCrawlEnd?: boolean;

When enabled, it will hold the first optimized deps results until all static imports are crawled on cold start. This avoids the need for full-page reloads when new dependencies are discovered and they trigger the generation of new common chunks. If all dependencies are found by the scanner plus the explicitly defined ones in include, it is better to disable this option to let the browser process more requests in parallel. true
Modifiers
- @experimental

property include

include?: string[];

Force optimize listed dependencies (must be resolvable import paths, cannot be globs).

property needsInterop

needsInterop?: string[];

Forces ESM interop when importing these dependencies. Some legacy packages advertise themselves as ESM but use require internally
Modifiers
- @experimental

property noDiscovery

noDiscovery?: boolean;

Automatic dependency discovery. When noDiscovery is true, only dependencies listed in include will be optimized. The scanner isn't run for cold start in this case. CJS-only dependencies must be present in include during dev. false

interface DepOptimizationMetadata

interface DepOptimizationMetadata {}

property browserHash

browserHash: string;

The browser hash is determined by the main hash plus additional dependencies discovered at runtime. This is used to invalidate browser requests to optimized deps.

property chunks

chunks: Record<string, OptimizedDepInfo>;

Metadata for non-entry optimized chunks and dynamic imports

property configHash

configHash: string;

This hash is determined by user config. This is checked on server startup to avoid unnecessary re-bundles.

property depInfoList

depInfoList: OptimizedDepInfo[];

OptimizedDepInfo list

property discovered

discovered: Record<string, OptimizedDepInfo>;

Metadata for each newly discovered dependency after processing

property hash

hash: string;

The main hash is determined by user config and dependency lockfiles. This is checked on server startup to avoid unnecessary re-bundles.

property lockfileHash

lockfileHash: string;

This hash is determined by dependency lockfiles. This is checked on server startup to avoid unnecessary re-bundles.

property optimized

optimized: Record<string, OptimizedDepInfo>;

Metadata for each already optimized dependency

interface DevEnvironmentContext

interface DevEnvironmentContext {}

property depsOptimizer

depsOptimizer?: DepsOptimizer;

property hot

hot: boolean;

property options

options?: EnvironmentOptions;

property remoteRunner

remoteRunner?: {
    inlineSourceMap?: boolean;
};

property transport

transport?: HotChannel | WebSocketServer;

interface DevEnvironmentOptions

interface DevEnvironmentOptions {}

property createEnvironment

createEnvironment?: (
    name: string,
    config: ResolvedConfig,
    context: CreateDevEnvironmentContext
) => Promise<DevEnvironment> | DevEnvironment;

create the Dev Environment instance

property moduleRunnerTransform

moduleRunnerTransform?: boolean;

For environments associated with a module runner. By default, it is false for the client environment and true for non-client environments. This option can also be used instead of the removed config.experimental.skipSsrTransform.

property preTransformRequests

preTransformRequests?: boolean;

Pre-transform known direct imports defaults to true for the client environment, false for the rest

property recoverable

recoverable?: boolean;

For environments that support a full-reload, like the client, we can short-circuit when restarting the server throwing early to stop processing current files. We avoided this for SSR requests. Maybe this is no longer needed.
Modifiers
- @experimental

property sourcemap

sourcemap?:
    | boolean
    | {
          js?: boolean;
          css?: boolean;
      };

Enables sourcemaps during dev { js: true }
Modifiers
- @experimental

property sourcemapIgnoreList

sourcemapIgnoreList?:
    | false
    | ((sourcePath: string, sourcemapPath: string) => boolean);

Whether or not to ignore-list source files in the dev server sourcemap, used to populate the [x_google_ignoreList source map extension](https://developer.chrome.com/blog/devtools-better-angular-debugging/#the-x_google_ignorelist-source-map-extension).
By default, it excludes all paths containing node_modules. You can pass false to disable this behavior, or, for full control, a function that takes the source path and sourcemap path and returns whether to ignore the source path.

property warmup

warmup?: string[];

Files to be pre-transformed. Supports glob patterns.

interface EnvironmentOptions

interface EnvironmentOptions extends SharedEnvironmentOptions {}

property build

build?: BuildEnvironmentOptions;

Build specific options

property dev

dev?: DevEnvironmentOptions;

Dev specific options

interface ErrorPayload

interface ErrorPayload {}

property err

err: {
    [name: string]: any;
    message: string;
    stack: string;
    id?: string;
    frame?: string;
    plugin?: string;
    pluginCode?: string;
    loc?: {
        file?: string;
        line: number;
        column: number;
    };
};

property type

type: 'error';

interface ESBuildOptions

interface ESBuildOptions extends esbuild_TransformOptions {}

property exclude

exclude?: string | RegExp | ReadonlyArray<string | RegExp>;

property include

include?: string | RegExp | ReadonlyArray<string | RegExp>;

property jsxInject

jsxInject?: string;

property minify

minify?: never;

This option is not respected. Use build.minify instead.

interface ExperimentalOptions

interface ExperimentalOptions {}

property hmrPartialAccept

hmrPartialAccept?: boolean;

Enables support of HMR partial accept via import.meta.hot.acceptExports.
false
Modifiers
- @experimental

property importGlobRestoreExtension

importGlobRestoreExtension?: boolean;

Append fake &lang.(ext) when queries are specified, to preserve the file extension for following plugins to process.
false
Modifiers
- @experimental

property renderBuiltUrl

renderBuiltUrl?: RenderBuiltAssetUrl;

Allow finegrain control over assets and public files paths
Modifiers
- @experimental

interface FetchableDevEnvironmentContext

interface FetchableDevEnvironmentContext extends DevEnvironmentContext {}

method handleRequest

handleRequest: (request: Request) => Promise<Response> | Response;

interface FetchModuleOptions

interface FetchModuleOptions {}

property cached

cached?: boolean;

property inlineSourceMap

inlineSourceMap?: boolean;

property startOffset

startOffset?: number;

interface FileSystemServeOptions

interface FileSystemServeOptions {}

property allow

allow?: string[];

Restrict accessing files outside the allowed directories.
Accepts absolute path or a path relative to project root. Will try to search up for workspace root by default.

property deny

deny?: string[];

Restrict accessing files that matches the patterns.
This will have higher priority than allow. picomatch patterns are supported.
['.env', '.env.*', '*.{crt,pem}', '**/.git/**']

property strict

strict?: boolean;

Strictly restrict file accessing outside of allowing paths.
Set to false to disable the warning
true

interface FullReloadPayload

interface FullReloadPayload {}

property path

path?: string;

property type

type: 'full-reload';

interface HmrContext

interface HmrContext {}

property file

file: string;

property modules

modules: Array<ModuleNode>;

property read

read: () => string | Promise<string>;

property server

server: ViteDevServer;

property timestamp

timestamp: number;

interface HmrOptions

interface HmrOptions {}

property clientPort

clientPort?: number;

property host

host?: string;

property overlay

overlay?: boolean;

property path

path?: string;

property port

port?: number;

property protocol

protocol?: string;

property server

server?: HttpServer;

property timeout

timeout?: number;

interface HotChannel

interface HotChannel<Api = any> {}

property api

api?: Api;

method close

close: () => Promise<unknown> | void;

Disconnect all clients, called when server is closed or restarted.

method listen

listen: () => void;

Start listening for messages

method off

off: (event: string, listener: Function) => void;

Unregister event listener

method on

on: {
    <T extends string>(event: T, listener: HotChannelListener<T>): void;
    (event: 'connection', listener: () => void): void;
};

Handle custom event emitted by import.meta.hot.send

method send

send: (payload: hmrPayload_HotPayload) => void;

Broadcast events to all clients

interface HotChannelClient

interface HotChannelClient {}

method send

send: (payload: hmrPayload_HotPayload) => void;

interface HotUpdateOptions

interface HotUpdateOptions {}

property file

file: string;

property modules

modules: Array<EnvironmentModuleNode>;

property read

read: () => string | Promise<string>;

property server

server: ViteDevServer;

property timestamp

timestamp: number;

property type

type: 'create' | 'update' | 'delete';

interface HTMLOptions

interface HTMLOptions {}

property cspNonce

cspNonce?: string;

A nonce value placeholder that will be used when generating script/style tags.
Make sure that this placeholder will be replaced with a unique value for each request by the server.

interface HtmlTagDescriptor

interface HtmlTagDescriptor {}

property attrs

attrs?: Record<string, string | boolean | undefined>;

property children

children?: string | HtmlTagDescriptor[];

property injectTo

injectTo?: 'head' | 'body' | 'head-prepend' | 'body-prepend';

default: 'head-prepend'

property tag

tag: string;

interface ImportGlobFunction

interface ImportGlobFunction {}

call signature

<
    Eager extends boolean,
    As extends string,
    T = As extends keyof KnownAsTypeMap ? KnownAsTypeMap[As] : unknown
>(
    glob: string | string[],
    options?: ImportGlobOptions<Eager, As>
): (Eager extends true ? true : false) extends true
    ? Record<string, T>
    : Record<string, () => Promise<T>>;

Import a list of files with a glob pattern.
Overload 1: No generic provided, infer the type from eager and as

call signature

<M>(glob: string | string[], options?: ImportGlobOptions<false, string>): Record<
    string,
    () => Promise<M>
>;

Import a list of files with a glob pattern.
Overload 2: Module generic provided, infer the type from eager: false

call signature

<M>(glob: string | string[], options: ImportGlobOptions<true, string>): Record<
    string,
    M
>;

Import a list of files with a glob pattern.
Overload 3: Module generic provided, infer the type from eager: true

interface ImportGlobOptions

interface ImportGlobOptions<Eager extends boolean, AsType extends string> {}

property as

as?: AsType;

Import type for the import url.
Deprecated
Use query instead, e.g. as: 'url' -> query: '?url', import: 'default'

property base

base?: string;

Base path to resolve relative paths.

property eager

eager?: Eager;

Import as static or dynamic
false

property exhaustive

exhaustive?: boolean;

Search files also inside node_modules/ and hidden directories (e.g. .git/). This might have impact on performance.
false

property import

import?: string;

Import only the specific named export. Set to default to import the default export.

property query

query?: string | Record<string, string | number | boolean>;

Custom queries

interface IndexHtmlTransformContext

interface IndexHtmlTransformContext {}

property bundle

bundle?: OutputBundle;

property chunk

chunk?: OutputChunk;

property filename

filename: string;

filename on disk

property originalUrl

originalUrl?: string;

property path

path: string;

public path when served

property server

server?: ViteDevServer;

interface InlineConfig

interface InlineConfig extends UserConfig {}

property configFile

configFile?: string | false;

property configLoader

configLoader?: 'bundle' | 'runner' | 'native';

Modifiers
- @experimental

property envFile

envFile?: false;

Deprecated

property forceOptimizeDeps

forceOptimizeDeps?: boolean;

interface InternalResolveOptions

interface InternalResolveOptions
    extends Required<ResolveOptions>,
        ResolvePluginOptions {}

interface InvalidatePayload

interface InvalidatePayload {}

property firstInvalidatedBy

firstInvalidatedBy: string;

property message

message: string | undefined;

property path

path: string;

interface JsonOptions

interface JsonOptions {}

property namedExports

namedExports?: boolean;

Generate a named export for every property of the JSON object true

property stringify

stringify?: boolean | 'auto';

Generate performant output as JSON.parse("stringified").
When set to 'auto', the data will be stringified only if the data is bigger than 10kB. 'auto'

interface KnownAsTypeMap

interface KnownAsTypeMap {}

property raw

raw: string;

property url

url: string;

property worker

worker: Worker;

interface LegacyOptions

interface LegacyOptions {}

property skipWebSocketTokenCheck

skipWebSocketTokenCheck?: boolean;

In Vite 6.0.8 and below, WebSocket server was able to connect from any web pages. However, that could be exploited by a malicious web page.
In Vite 6.0.9+, the WebSocket server now requires a token to connect from a web page. But this may break some plugins and frameworks that connects to the WebSocket server on their own. Enabling this option will make Vite skip the token check.
**We do not recommend enabling this option unless you are sure that you are fine with that security weakness.**

interface LibraryOptions

interface LibraryOptions {}

property cssFileName

cssFileName?: string;

The name of the CSS file output if the library imports CSS. Defaults to the same value as build.lib.fileName if it's set a string, otherwise it falls back to the name option of the project package.json.

property entry

entry: InputOption;

Path of library entry

property fileName

fileName?: string | ((format: ModuleFormat, entryName: string) => string);

The name of the package file output. The default file name is the name option of the project package.json. It can also be defined as a function taking the format as an argument.

property formats

formats?: LibraryFormats[];

Output bundle formats ['es', 'umd']

property name

name?: string;

The name of the exposed global variable. Required when the formats option includes umd or iife

interface LogErrorOptions

interface LogErrorOptions extends LogOptions {}

property error

error?: Error | RollupError | null;

interface Logger

interface Logger {}

property hasWarned

hasWarned: boolean;

method clearScreen

clearScreen: (type: LogType) => void;

method error

error: (msg: string, options?: LogErrorOptions) => void;

method hasErrorLogged

hasErrorLogged: (error: Error | RollupError) => boolean;

method info

info: (msg: string, options?: LogOptions) => void;

method warn

warn: (msg: string, options?: LogOptions) => void;

method warnOnce

warnOnce: (msg: string, options?: LogOptions) => void;

interface LoggerOptions

interface LoggerOptions {}

property allowClearScreen

allowClearScreen?: boolean;

property console

console?: Console;

property customLogger

customLogger?: Logger;

property prefix

prefix?: string;

interface LogOptions

interface LogOptions {}

property clear

clear?: boolean;

property environment

environment?: string;

property timestamp

timestamp?: boolean;

interface ManifestChunk

interface ManifestChunk {}

property assets

assets?: string[];

property css

css?: string[];

property dynamicImports

dynamicImports?: string[];

property file

file: string;

property imports

imports?: string[];

property isDynamicEntry

isDynamicEntry?: boolean;

property isEntry

isEntry?: boolean;

property name

name?: string;

property names

names?: string[];

property src

src?: string;

interface MinimalPluginContextWithoutEnvironment

interface MinimalPluginContextWithoutEnvironment
    extends Omit<MinimalPluginContext, 'environment'> {}

interface ModulePreloadOptions

interface ModulePreloadOptions {}

property polyfill

polyfill?: boolean;

Whether to inject a module preload polyfill. Note: does not apply to library mode. true

property resolveDependencies

resolveDependencies?: ResolveModulePreloadDependenciesFn;

Resolve the list of dependencies to preload for a given dynamic import
Modifiers
- @experimental

interface ModuleRunnerTransformOptions

interface ModuleRunnerTransformOptions {}

property json

json?: {
    stringify?: boolean;
};

interface NormalizedHotChannel

interface NormalizedHotChannel<Api = any> {}

property api

api?: Api;

method close

close: () => Promise<unknown> | void;

Disconnect all clients, called when server is closed or restarted.

method handleInvoke

handleInvoke: (
    payload: hmrPayload_HotPayload
) => Promise<{ result: any } | { error: any }>;

method listen

listen: () => void;

Start listening for messages

method off

off: (event: string, listener: Function) => void;

Unregister event listener

method on

on: {
    <T extends string>(
        event: T,
        listener: (
            data: InferCustomEventPayload<T>,
            client: NormalizedHotChannelClient
        ) => void
    ): void;
    (event: 'connection', listener: () => void): void;
};

Handle custom event emitted by import.meta.hot.send

method send

send: {
    (payload: hmrPayload_HotPayload): void;
    <T extends string>(event: T, payload?: InferCustomEventPayload<T>): void;
};

Broadcast events to all clients
Send custom event

interface NormalizedHotChannelClient

interface NormalizedHotChannelClient {}

method send

send: {
    (payload: hmrPayload_HotPayload): void;
    (event: string, payload?: any): void;
};

Send event to the client
Send custom event

interface OptimizedDepInfo

interface OptimizedDepInfo {}

property browserHash

browserHash?: string;

property exportsData

exportsData?: Promise<ExportsData>;

ExportData cache, discovered deps will parse the src entry to get exports data used both to define if interop is needed and when pre-bundling

property file

file: string;

property fileHash

fileHash?: string;

property id

id: string;

property needsInterop

needsInterop?: boolean;

property processing

processing?: Promise<void>;

During optimization, ids can still be resolved to their final location but the bundles may not yet be saved to disk

property src

src?: string;

interface Plugin

interface Plugin$1<A = any> extends Rollup.Plugin<A> {}

There are two types of plugins in Vite. App plugins and environment plugins. Environment Plugins are defined by a constructor function that will be called once per each environment allowing users to have completely different plugins for each of them. The constructor gets the resolved environment after the server and builder has already been created simplifying config access and cache management for for environment specific plugins. Environment Plugins are closer to regular rollup plugins. They can't define app level hooks (like config, configResolved, configureServer, etc).

property apply

apply?:
    | 'serve'
    | 'build'
    | ((this: void, config: UserConfig, env: ConfigEnv) => boolean);

Apply the plugin only for serve or build, or on certain conditions.

property applyToEnvironment

applyToEnvironment?: (
    environment: PartialEnvironment
) => boolean | Promise<boolean> | PluginOption;

Define environments where this plugin should be active By default, the plugin is active in all environments
Modifiers
- @experimental

property buildApp

buildApp?: ObjectHook<BuildAppHook>;

Build Environments
Modifiers
- @experimental

property config

config?: ObjectHook<
    (
        this: ConfigPluginContext,
        config: UserConfig,
        env: ConfigEnv
    ) =>
        | Omit<UserConfig, 'plugins'>
        | null
        | void
        | Promise<Omit<UserConfig, 'plugins'> | null | void>
>;

Modify vite config before it's resolved. The hook can either mutate the passed-in config directly, or return a partial config object that will be deeply merged into existing config.
Note: User plugins are resolved before running this hook so injecting other plugins inside the config hook will have no effect.

property configEnvironment

configEnvironment?: ObjectHook<
    (
        this: ConfigPluginContext,
        name: string,
        config: EnvironmentOptions,
        env: ConfigEnv & {
            /**
             * Whether this environment is SSR environment and `ssr.target` is set to `'webworker'`.
             * Only intended to be used for backward compatibility.
             */
            isSsrTargetWebworker?: boolean;
        }
    ) =>
        | EnvironmentOptions
        | null
        | void
        | Promise<EnvironmentOptions | null | void>
>;

Modify environment configs before it's resolved. The hook can either mutate the passed-in environment config directly, or return a partial config object that will be deeply merged into existing config. This hook is called for each environment with a partially resolved environment config that already accounts for the default environment config values set at the root level. If plugins need to modify the config of a given environment, they should do it in this hook instead of the config hook. Leaving the config hook only for modifying the root default environment config.

property configResolved

configResolved?: ObjectHook<
    (
        this: MinimalPluginContextWithoutEnvironment,
        config: ResolvedConfig
    ) => void | Promise<void>
>;

Use this hook to read and store the final resolved vite config.

property configurePreviewServer

configurePreviewServer?: ObjectHook<PreviewServerHook>;

Configure the preview server. The hook receives the PreviewServer instance. This can also be used to store a reference to the server for use in other hooks.
The hooks are called before other middlewares are applied. A hook can return a post hook that will be called after other middlewares are applied. Hooks can be async functions and will be called in series.

property configureServer

configureServer?: ObjectHook<ServerHook>;

Configure the vite server. The hook receives the ViteDevServer instance. This can also be used to store a reference to the server for use in other hooks.
The hooks will be called before internal middlewares are applied. A hook can return a post hook that will be called after internal middlewares are applied. Hook can be async functions and will be called in series.

property enforce

enforce?: 'pre' | 'post';

Enforce plugin invocation tier similar to webpack loaders. Hooks ordering is still subject to the order property in the hook object.
Plugin invocation order: - alias resolution - enforce: 'pre' plugins - vite core plugins - normal plugins - vite build plugins - enforce: 'post' plugins - vite build post plugins

property handleHotUpdate

handleHotUpdate?: ObjectHook<
    (
        this: MinimalPluginContextWithoutEnvironment,
        ctx: HmrContext
    ) => Array<ModuleNode> | void | Promise<Array<ModuleNode> | void>
>;

Perform custom handling of HMR updates. The handler receives a context containing changed filename, timestamp, a list of modules affected by the file change, and the dev server instance.
- The hook can return a filtered list of modules to narrow down the update. e.g. for a Vue SFC, we can narrow down the part to update by comparing the descriptors.
- The hook can also return an empty array and then perform custom updates by sending a custom hmr payload via server.ws.send().
- If the hook doesn't return a value, the hmr update will be performed as normal.

property hotUpdate

hotUpdate?: ObjectHook<
    (
        this: MinimalPluginContext & {
            environment: DevEnvironment;
        },
        options: HotUpdateOptions
    ) =>
        | Array<EnvironmentModuleNode>
        | void
        | Promise<Array<EnvironmentModuleNode> | void>
>;

Perform custom handling of HMR updates. The handler receives an options containing changed filename, timestamp, a list of modules affected by the file change, and the dev server instance.
- The hook can return a filtered list of modules to narrow down the update. e.g. for a Vue SFC, we can narrow down the part to update by comparing the descriptors.
- The hook can also return an empty array and then perform custom updates by sending a custom hmr payload via environment.hot.send().
- If the hook doesn't return a value, the hmr update will be performed as normal.

property load

load?: ObjectHook<
    (
        this: PluginContext,
        id: string,
        options?: {
            ssr?: boolean;
        }
    ) => Promise<LoadResult> | LoadResult,
    {
        filter?: {
            id?: StringFilter;
        };
    }
>;

property perEnvironmentStartEndDuringDev

perEnvironmentStartEndDuringDev?: boolean;

Opt-in this plugin into per-environment buildStart and buildEnd during dev. For backward-compatibility, the buildStart hook is called only once during dev, for the client environment. Plugins can opt-in to be called per-environment, aligning with the build hook behavior.
Modifiers
- @experimental

property resolveId

resolveId?: ObjectHook<
    (
        this: PluginContext,
        source: string,
        importer: string | undefined,
        options: {
            attributes: Record<string, string>;
            custom?: CustomPluginOptions;
            ssr?: boolean;
            isEntry: boolean;
        }
    ) => Promise<ResolveIdResult> | ResolveIdResult,
    {
        filter?: {
            id?: StringFilter<RegExp>;
        };
    }
>;

extend hooks with ssr flag

property sharedDuringBuild

sharedDuringBuild?: boolean;

Opt-in this plugin into the shared plugins pipeline. For backward-compatibility, plugins are re-recreated for each environment during vite build --app We have an opt-in per plugin, and a general builder.sharedPlugins In a future major, we'll flip the default to be shared by default
Modifiers
- @experimental

property transform

transform?: ObjectHook<
    (
        this: TransformPluginContext,
        code: string,
        id: string,
        options?: {
            ssr?: boolean;
        }
    ) => Promise<Rollup.TransformResult> | Rollup.TransformResult,
    {
        filter?: {
            id?: StringFilter;
            code?: StringFilter;
        };
    }
>;

property transformIndexHtml

transformIndexHtml?: IndexHtmlTransform;

Transform index.html. The hook receives the following arguments:
- html: string - ctx: IndexHtmlTransformContext, which contains: - path: public path when served - filename: filename on disk - server?: ViteDevServer (only present during serve) - bundle?: rollup.OutputBundle (only present during build) - chunk?: rollup.OutputChunk - originalUrl?: string
It can either return a transformed string, or a list of html tag descriptors that will be injected into the <head> or <body>.
By default the transform is applied **after** vite's internal html transform. If you need to apply the transform before vite, use an object: { order: 'pre', handler: hook }

interface PluginHookUtils

interface PluginHookUtils {}

property getSortedPluginHooks

getSortedPluginHooks: <K extends keyof Plugin$1>(
    hookName: K
) => NonNullable<HookHandler<Plugin$1[K]>>[];

property getSortedPlugins

getSortedPlugins: <K extends keyof Plugin$1>(
    hookName: K
) => PluginWithRequiredHook<K>[];

interface PreprocessCSSResult

interface PreprocessCSSResult {}

property code

code: string;

property deps

deps?: Set<string>;

property map

map?: SourceMapInput;

property modules

modules?: Record<string, string>;

interface PreviewOptions

interface PreviewOptions extends CommonServerOptions {}

interface PreviewServer

interface PreviewServer {}

property config

config: ResolvedConfig;

The resolved vite config object

property httpServer

httpServer: HttpServer;

native Node http server instance

property middlewares

middlewares: Connect.Server;

A connect app instance. - Can be used to attach custom middlewares to the preview server. - Can also be used as the handler function of a custom http server or as a middleware in any connect-style Node.js frameworks
https://github.com/senchalabs/connect#use-middleware

property resolvedUrls

resolvedUrls: ResolvedServerUrls | null;

The resolved urls Vite prints on the CLI (URL-encoded). Returns null if the server is not listening on any port.

method bindCLIShortcuts

bindCLIShortcuts: (options?: BindCLIShortcutsOptions<PreviewServer>) => void;

Bind CLI shortcuts

method close

close: () => Promise<void>;

Stop the server.

method printUrls

printUrls: () => void;

Print server urls

interface ProxyOptions

interface ProxyOptions extends ServerOptions$3 {}

property bypass

bypass?: (
    req: http.IncomingMessage /** undefined for WebSocket upgrade requests */,
    res: http.ServerResponse | undefined,
    options: ProxyOptions
) =>
    | void
    | null
    | undefined
    | false
    | string
    | Promise<void | null | undefined | boolean | string>;

webpack-dev-server style bypass function

property configure

configure?: (proxy: ProxyServer, options: ProxyOptions) => void;

configure the proxy server (e.g. listen to events)

property rewrite

rewrite?: (path: string) => string;

rewrite path

property rewriteWsOrigin

rewriteWsOrigin?: boolean | undefined;

rewrite the Origin header of a WebSocket request to match the target
**Exercise caution as rewriting the Origin can leave the proxying open to [CSRF attacks](https://owasp.org/www-community/attacks/csrf).**

interface PrunePayload

interface PrunePayload {}

property paths

paths: string[];

property type

type: 'prune';

interface ResolvedBuildEnvironmentOptions

interface ResolvedBuildEnvironmentOptions
    extends Required<Omit<BuildEnvironmentOptions, 'polyfillModulePreload'>> {}

property modulePreload

modulePreload: false | ResolvedModulePreloadOptions;

interface ResolvedBuildOptions

interface ResolvedBuildOptions
    extends Required<Omit<BuildOptions, 'polyfillModulePreload'>> {}

property modulePreload

modulePreload: false | ResolvedModulePreloadOptions;

interface ResolvedConfig

interface ResolvedConfig
    extends Readonly<
        Omit<
            UserConfig,
            | 'plugins'
            | 'css'
            | 'json'
            | 'assetsInclude'
            | 'optimizeDeps'
            | 'worker'
            | 'build'
            | 'dev'
            | 'environments'
            | 'experimental'
            | 'future'
            | 'server'
            | 'preview'
        > & {
            configFile: string | undefined;
            configFileDependencies: string[];
            inlineConfig: InlineConfig;
            root: string;
            base: string;
            publicDir: string;
            cacheDir: string;
            command: 'build' | 'serve';
            mode: string;
            isWorker: boolean;
            isProduction: boolean;
            envDir: string | false;
            env: Record<string, any>;
            resolve: Required<ResolveOptions> & {
                alias: Alias[];
            };
            plugins: readonly Plugin$1[];
            css: ResolvedCSSOptions;
            json: Required<JsonOptions>;
            esbuild: ESBuildOptions | false;
            server: ResolvedServerOptions;
            dev: ResolvedDevEnvironmentOptions;
            /** @experimental */
            builder: ResolvedBuilderOptions | undefined;
            build: ResolvedBuildOptions;
            preview: ResolvedPreviewOptions;
            ssr: ResolvedSSROptions;
            assetsInclude: (file: string) => boolean;
            logger: Logger;
            /**
             * Create an internal resolver to be used in special scenarios, e.g.
             * optimizer & handling css `@imports`.
             *
             * This API is deprecated. It only works for the client and ssr
             * environments. The `aliasOnly` option is also not being used anymore.
             * Plugins should move to `createIdResolver(environment.config)` instead.
             *
             * @deprecated Use `createIdResolver` from `vite` instead.
             */
            createResolver: (options?: Partial<InternalResolveOptions>) => ResolveFn;
            optimizeDeps: DepOptimizationOptions;
            worker: ResolvedWorkerOptions;
            appType: AppType;
            experimental: RequiredExceptFor<ExperimentalOptions, 'renderBuiltUrl'>;
            future: FutureOptions | undefined;
            environments: Record<string, ResolvedEnvironmentOptions>;
            /**
             * The token to connect to the WebSocket server from browsers.
             *
             * We recommend using `import.meta.hot` rather than connecting
             * to the WebSocket server directly.
             * If you have a usecase that requires connecting to the WebSocket
             * server, please create an issue so that we can discuss.
             *
             * @deprecated
             */
            webSocketToken: string;
        } & PluginHookUtils
    > {}

interface ResolvedModulePreloadOptions

interface ResolvedModulePreloadOptions {}

property polyfill

polyfill: boolean;

property resolveDependencies

resolveDependencies?: ResolveModulePreloadDependenciesFn;

interface ResolvedPreviewOptions

interface ResolvedPreviewOptions
    extends RequiredExceptFor<PreviewOptions, 'host' | 'https' | 'proxy'> {}

interface ResolvedServerOptions

interface ResolvedServerOptions
    extends Omit<
        RequiredExceptFor<
            ServerOptions$1,
            | 'host'
            | 'https'
            | 'proxy'
            | 'hmr'
            | 'ws'
            | 'watch'
            | 'origin'
            | 'hotUpdateEnvironments'
        >,
        'fs' | 'middlewareMode' | 'sourcemapIgnoreList'
    > {}

property fs

fs: Required<FileSystemServeOptions>;

property middlewareMode

middlewareMode: NonNullable<ServerOptions$1['middlewareMode']>;

property sourcemapIgnoreList

sourcemapIgnoreList: Exclude<
    ServerOptions$1['sourcemapIgnoreList'],
    false | undefined
>;

interface ResolvedServerUrls

interface ResolvedServerUrls {}

property local

local: string[];

property network

network: string[];

interface ResolvedSSROptions

interface ResolvedSSROptions extends SSROptions {}

property optimizeDeps

optimizeDeps: SsrDepOptimizationConfig;

property target

target: SSRTarget;

interface ResolvedWorkerOptions

interface ResolvedWorkerOptions {}

property format

format: 'es' | 'iife';

property plugins

plugins: (bundleChain: string[]) => Promise<ResolvedConfig>;

property rollupOptions

rollupOptions: RollupOptions;

interface ResolveOptions

interface ResolveOptions extends EnvironmentResolveOptions {}

property preserveSymlinks

preserveSymlinks?: boolean;

false

interface ResolverObject

interface ResolverObject {}

property buildStart

buildStart?: PluginHooks['buildStart'];

property resolveId

resolveId: ResolverFunction;

interface RollupCommonJSOptions

interface RollupCommonJSOptions {}

property defaultIsModuleExports

defaultIsModuleExports?: boolean | 'auto' | ((id: string) => boolean | 'auto');

"auto"

property dynamicRequireRoot

dynamicRequireRoot?: string;

To avoid long paths when using the dynamicRequireTargets option, you can use this option to specify a directory that is a common parent for all files that use dynamic require statements. Using a directory higher up such as / may lead to unnecessarily long paths in the generated code and may expose directory names on your machine like your home directory name. By default, it uses the current working directory.

property dynamicRequireTargets

dynamicRequireTargets?: string | ReadonlyArray<string>;

Some modules contain dynamic require calls, or require modules that contain circular dependencies, which are not handled well by static imports. Including those modules as dynamicRequireTargets will simulate a CommonJS (NodeJS-like) environment for them with support for dynamic dependencies. It also enables strictRequires for those modules.
Note: In extreme cases, this feature may result in some paths being rendered as absolute in the final bundle. The plugin tries to avoid exposing paths from the local machine, but if you are dynamicRequirePaths with paths that are far away from your project's folder, that may require replacing strings like "/Users/John/Desktop/foo-project/" -> "/".

property esmExternals

esmExternals?: boolean | ReadonlyArray<string> | ((id: string) => boolean);

Controls how to render imports from external dependencies. By default, this plugin assumes that all external dependencies are CommonJS. This means they are rendered as default imports to be compatible with e.g. NodeJS where ES modules can only import a default export from a CommonJS dependency.
If you set esmExternals to true, this plugin assumes that all external dependencies are ES modules and respect the requireReturnsDefault option. If that option is not set, they will be rendered as namespace imports.
You can also supply an array of ids to be treated as ES modules, or a function that will be passed each external id to determine whether it is an ES module. false

property exclude

exclude?: string | RegExp | readonly (string | RegExp)[];

A minimatch pattern, or array of patterns, which specifies the files in the build the plugin should _ignore_. By default, all files with extensions other than those in extensions or ".cjs" are ignored, but you can exclude additional files. See also the include option. undefined

property extensions

extensions?: ReadonlyArray<string>;

For extensionless imports, search for extensions other than .js in the order specified. Note that you need to make sure that non-JavaScript files are transpiled by another plugin first. [ '.js' ]

property ignore

ignore?: ReadonlyArray<string> | ((id: string) => boolean);

Sometimes you have to leave require statements unconverted. Pass an array containing the IDs or a id => boolean function. []

property ignoreDynamicRequires

ignoreDynamicRequires?: boolean;

Some require calls cannot be resolved statically to be translated to imports. When this option is set to false, the generated code will either directly throw an error when such a call is encountered or, when dynamicRequireTargets is used, when such a call cannot be resolved with a configured dynamic require target. Setting this option to true will instead leave the require call in the code or use it as a fallback for dynamicRequireTargets. false

property ignoreGlobal

ignoreGlobal?: boolean;

If true then uses of global won't be dealt with by this plugin false

property ignoreTryCatch

ignoreTryCatch?:
    | boolean
    | 'remove'
    | ReadonlyArray<string>
    | ((id: string) => boolean | 'remove');

In most cases, where require calls are inside a try-catch clause, they should be left unconverted as it requires an optional dependency that may or may not be installed beside the rolled up package. Due to the conversion of require to a static import - the call is hoisted to the top of the file, outside the try-catch clause.
- true: Default. All require calls inside a try will be left unconverted. - false: All require calls inside a try will be converted as if the try-catch clause is not there. - remove: Remove all require calls from inside any try block. - string[]: Pass an array containing the IDs to left unconverted. - ((id: string) => boolean|'remove'): Pass a function that controls individual IDs.
true

property include

include?: string | RegExp | readonly (string | RegExp)[];

A minimatch pattern, or array of patterns, which specifies the files in the build the plugin should operate on. By default, all files with extension ".cjs" or those in extensions are included, but you can narrow this list by only including specific files. These files will be analyzed and transpiled if either the analysis does not find ES module specific statements or transformMixedEsModules is true. undefined

property requireReturnsDefault

requireReturnsDefault?:
    | boolean
    | 'auto'
    | 'preferred'
    | 'namespace'
    | ((id: string) => boolean | 'auto' | 'preferred' | 'namespace');

Controls what is returned when requiring an ES module from a CommonJS file. When using the esmExternals option, this will also apply to external modules. By default, this plugin will render those imports as namespace imports i.e.
// input const foo = require('foo'); // output import * as foo from 'foo';
However, there are some situations where this may not be desired. For these situations, you can change Rollup's behaviour either globally or per module. To change it globally, set the requireReturnsDefault option to one of the following values:
- false: This is the default, requiring an ES module returns its namespace. This is the only option that will also add a marker __esModule: true to the namespace to support interop patterns in CommonJS modules that are transpiled ES modules. - "namespace": Like false, requiring an ES module returns its namespace, but the plugin does not add the __esModule marker and thus creates more efficient code. For external dependencies when using esmExternals: true, no additional interop code is generated. - "auto": This is complementary to how output.exports: "auto" works in Rollup: If a module has a default export and no named exports, requiring that module returns the default export. In all other cases, the namespace is returned. For external dependencies when using esmExternals: true, a corresponding interop helper is added. - "preferred": If a module has a default export, requiring that module always returns the default export, no matter whether additional named exports exist. This is similar to how previous versions of this plugin worked. Again for external dependencies when using esmExternals: true, an interop helper is added. - true: This will always try to return the default export on require without checking if it actually exists. This can throw at build time if there is no default export. This is how external dependencies are handled when esmExternals is not used. The advantage over the other options is that, like false, this does not add an interop helper for external dependencies, keeping the code lean.
To change this for individual modules, you can supply a function for requireReturnsDefault instead. This function will then be called once for each required ES module or external dependency with the corresponding id and allows you to return different values for different modules. false

property sourceMap

sourceMap?: boolean;

If false, skips source map generation for CommonJS modules. This will improve performance. true

property strictRequires

strictRequires?: boolean | string | RegExp | readonly (string | RegExp)[];

By default, this plugin will try to hoist require statements as imports to the top of each file. While this works well for many code bases and allows for very efficient ESM output, it does not perfectly capture CommonJS semantics as the order of side effects like log statements may change. But it is especially problematic when there are circular require calls between CommonJS modules as those often rely on the lazy execution of nested require calls.
Setting this option to true will wrap all CommonJS files in functions which are executed when they are required for the first time, preserving NodeJS semantics. Note that this can have an impact on the size and performance of the generated code.
The default value of "auto" will only wrap CommonJS files when they are part of a CommonJS dependency cycle, e.g. an index file that is required by many of its dependencies. All other CommonJS files are hoisted. This is the recommended setting for most code bases.
false will entirely prevent wrapping and hoist all files. This may still work depending on the nature of cyclic dependencies but will often cause problems.
You can also provide a minimatch pattern, or array of patterns, to only specify a subset of files which should be wrapped in functions for proper require semantics.
"debug" works like "auto" but after bundling, it will display a warning containing a list of ids that have been wrapped which can be used as minimatch pattern for fine-tuning. "auto"

property transformMixedEsModules

transformMixedEsModules?: boolean;

Instructs the plugin whether to enable mixed module transformations. This is useful in scenarios with modules that contain a mix of ES import statements and CommonJS require expressions. Set to true if require calls should be transformed to imports in mixed modules, or false if the require expressions should survive the transformation. The latter can be important if the code contains environment detection, or you are coding for an environment with special treatment for require calls such as ElectronJS. See also the ignore option. false

interface RollupDynamicImportVarsOptions

interface RollupDynamicImportVarsOptions {}

property exclude

exclude?: string | RegExp | (string | RegExp)[];

Files to exclude in this plugin (default none). []

property include

include?: string | RegExp | (string | RegExp)[];

Files to include in this plugin (default all). []

property warnOnError

warnOnError?: boolean;

By default, the plugin quits the build process when it encounters an error. If you set this option to true, it will throw a warning instead and leave the code untouched. false

interface RunnableDevEnvironmentContext

interface RunnableDevEnvironmentContext extends Omit<DevEnvironmentContext, 'hot'> {}

property hot

hot?: boolean;

property runner

runner?: (
    environment: RunnableDevEnvironment,
    options?: ServerModuleRunnerOptions
) => ModuleRunner;

property runnerOptions

runnerOptions?: ServerModuleRunnerOptions;

interface SendOptions

interface SendOptions {}

property cacheControl

cacheControl?: string;

property etag

etag?: string;

property headers

headers?: OutgoingHttpHeaders;

property map

map?:
    | SourceMap
    | {
          mappings: '';
      }
    | null;

interface ServerModuleRunnerOptions

interface ServerModuleRunnerOptions
    extends Omit<
        ModuleRunnerOptions,
        'root' | 'fetchModule' | 'hmr' | 'transport'
    > {}

Modifiers
- @experimental

property evaluator

evaluator?: ModuleEvaluator;

Provide a custom module evaluator. This controls how the code is executed.

property hmr

hmr?:
    | false
    | {
          logger?: ModuleRunnerHmr['logger'];
      };

Disable HMR or configure HMR logger.

interface ServerOptions

interface ServerOptions$1 extends CommonServerOptions {}

server.pluginContainer compatibility
The default environment is in buildStart, buildEnd, watchChange, and closeBundle hooks, which are called once for all environments, or when no environment is passed in other hooks. The ssrEnvironment is needed for backward compatibility when the ssr flag is passed without an environment. The defaultEnvironment in the main pluginContainer in the server should be the client environment for backward compatibility.

property fs

fs?: FileSystemServeOptions;

Options for files served via '/@fs/'.

property hmr

hmr?: HmrOptions | boolean;

Configure HMR-specific options (port, host, path & protocol)

property hotUpdateEnvironments

hotUpdateEnvironments?: (
    server: ViteDevServer,
    hmr: (environment: DevEnvironment) => Promise<void>
) => Promise<void>;

Run HMR tasks, by default the HMR propagation is done in parallel for all environments
Modifiers
- @experimental

property middlewareMode

middlewareMode?:
    | boolean
    | {
          /**
           * Parent server instance to attach to
           *
           * This is needed to proxy WebSocket connections to the parent server.
           */
          server: HttpServer;
      };

Create Vite dev server to be used as a middleware in an existing server false

property origin

origin?: string;

Origin for the generated asset URLs.
Example 1
http://127.0.0.1:8080

property perEnvironmentStartEndDuringDev

perEnvironmentStartEndDuringDev?: boolean;

Backward compatibility. The buildStart and buildEnd hooks were called only once for all environments. This option enables per-environment buildStart and buildEnd hooks. false
Modifiers
- @experimental

property preTransformRequests

preTransformRequests?: boolean;

Pre-transform known direct imports true

property sourcemapIgnoreList

sourcemapIgnoreList?:
    | false
    | ((sourcePath: string, sourcemapPath: string) => boolean);

Whether or not to ignore-list source files in the dev server sourcemap, used to populate the [x_google_ignoreList source map extension](https://developer.chrome.com/blog/devtools-better-angular-debugging/#the-x_google_ignorelist-source-map-extension).
By default, it excludes all paths containing node_modules. You can pass false to disable this behavior, or, for full control, a function that takes the source path and sourcemap path and returns whether to ignore the source path.

property warmup

warmup?: {
    /**
     * The files to be transformed and used on the client-side. Supports glob patterns.
     */
    clientFiles?: string[];
    /**
     * The files to be transformed and used in SSR. Supports glob patterns.
     */
    ssrFiles?: string[];
};

Warm-up files to transform and cache the results in advance. This improves the initial page load during server starts and prevents transform waterfalls.

property watch

watch?: WatchOptions | null;

chokidar watch options or null to disable FS watching https://github.com/paulmillr/chokidar/tree/3.6.0#api

property ws

ws?: false;

Do not start the websocket connection.
Modifiers
- @experimental

interface SSROptions

interface SSROptions {}

property external

external?: string[] | true;

property noExternal

noExternal?: string | RegExp | (string | RegExp)[] | true;

property optimizeDeps

optimizeDeps?: SsrDepOptimizationConfig;

Control over which dependencies are optimized during SSR and esbuild options During build: no external CJS dependencies are optimized by default During dev: explicit no external CJS dependencies are optimized by default
Modifiers
- @experimental

property resolve

resolve?: {
    /**
     * Conditions that are used in the plugin pipeline. The default value is the root config's `resolve.conditions`.
     *
     * Use this to override the default ssr conditions for the ssr build.
     *
     * @default rootConfig.resolve.conditions
     */
    conditions?: string[];
    /**
     * Conditions that are used during ssr import (including `ssrLoadModule`) of externalized dependencies.
     *
     * @default ['node', 'module-sync']
     */
    externalConditions?: string[];
    mainFields?: string[];
};

property target

target?: SSRTarget;

Define the target for the ssr build. The browser field in package.json is ignored for node but used if webworker is the target This option will be removed in a future major version 'node'

interface TerserOptions

interface TerserOptions extends TerserMinifyOptions {}

property maxWorkers

maxWorkers?: number;

Vite-specific option to specify the max number of workers to spawn when minifying files with terser.
number of CPUs minus 1

interface TransformOptions

interface TransformOptions {}

property ssr

ssr?: boolean;

Deprecated
inferred from environment

interface TransformResult

interface TransformResult {}

property code

code: string;

property deps

deps?: string[];

property dynamicDeps

dynamicDeps?: string[];

property etag

etag?: string;

property map

map:
    | SourceMap
    | {
          mappings: '';
      }
    | null;

property ssr

ssr?: boolean;

interface Update

interface Update {}

property acceptedPath

acceptedPath: string;

property path

path: string;

property timestamp

timestamp: number;

property type

type: 'js-update' | 'css-update';

interface UpdatePayload

interface UpdatePayload {}

property type

type: 'update';

property updates

updates: Update[];

interface UserConfig

interface UserConfig extends DefaultEnvironmentOptions {}

property appType

appType?: AppType;

Whether your application is a Single Page Application (SPA), a Multi-Page Application (MPA), or Custom Application (SSR and frameworks with custom HTML handling) 'spa'

property assetsInclude

assetsInclude?: string | RegExp | (string | RegExp)[];

Specify additional picomatch patterns to be treated as static assets.

property base

base?: string;

Base public path when served in development or production. '/'

property builder

builder?: BuilderOptions;

Builder specific options
Modifiers
- @experimental

property cacheDir

cacheDir?: string;

Directory to save cache files. Files in this directory are pre-bundled deps or some other cache files that generated by vite, which can improve the performance. You can use --force flag or manually delete the directory to regenerate the cache files. The value can be either an absolute file system path or a path relative to project root. Default to .vite when no package.json is detected. 'node_modules/.vite'

property clearScreen

clearScreen?: boolean;

true

property css

css?: CSSOptions;

CSS related options (preprocessors and CSS modules)

property customLogger

customLogger?: Logger;

Custom logger.

property envDir

envDir?: string | false;

Environment files directory. Can be an absolute path, or a path relative from root. root

property environments

environments?: Record<string, EnvironmentOptions>;

Environment overrides

property envPrefix

envPrefix?: string | string[];

Env variables starts with envPrefix will be exposed to your client source code via import.meta.env. 'VITE_'

property esbuild

esbuild?: ESBuildOptions | false;

Transform options to pass to esbuild. Or set to false to disable esbuild.

property experimental

experimental?: ExperimentalOptions;

Experimental features
Features under this field could change in the future and might NOT follow semver. Please be careful and always pin Vite's version when using them.
Modifiers
- @experimental

property future

future?: FutureOptions | 'warn';

Options to opt-in to future behavior

property html

html?: HTMLOptions;

HTML related options

property json

json?: JsonOptions;

JSON loading options

property legacy

legacy?: LegacyOptions;

Legacy options
Features under this field only follow semver for patches, they could be removed in a future minor version. Please always pin Vite's version to a minor when using them.

property logLevel

logLevel?: LogLevel;

Log level. 'info'

property mode

mode?: string;

Explicitly set a mode to run in. This will override the default mode for each command, and can be overridden by the command line --mode option.

property optimizeDeps

optimizeDeps?: DepOptimizationOptions;

Dep optimization options

property plugins

plugins?: PluginOption[];

Array of vite plugins to use.

property preview

preview?: PreviewOptions;

Preview specific options, e.g. host, port, https...

property publicDir

publicDir?: string | false;

Directory to serve as plain static assets. Files in this directory are served and copied to build dist dir as-is without transform. The value can be either an absolute file system path or a path relative to project root.
Set to false or an empty string to disable copied static assets to build dist dir. 'public'

property root

root?: string;

Project root directory. Can be an absolute path, or a path relative from the location of the config file itself. process.cwd()

property server

server?: ServerOptions$1;

Server specific options, e.g. host, port, https...

property ssr

ssr?: SSROptions;

SSR specific options We could make SSROptions be a EnvironmentOptions if we can abstract external/noExternal for environments in general.

property worker

worker?: {
    /**
     * Output format for worker bundle
     * @default 'iife'
     */
    format?: 'es' | 'iife';
    /**
     * Vite plugins that apply to worker bundle. The plugins returned by this function
     * should be new instances every time it is called, because they are used for each
     * rollup worker bundling process.
     */
    plugins?: () => PluginOption[];
    /**
     * Rollup options to build worker bundle
     */
    rollupOptions?: Omit<
        RollupOptions,
        'plugins' | 'input' | 'onwarn' | 'preserveEntrySignatures'
    >;
};

Worker bundle options

interface ViteBuilder

interface ViteBuilder {}

property config

config: ResolvedConfig;

property environments

environments: Record<string, BuildEnvironment>;

method build

build: (
    environment: BuildEnvironment
) => Promise<RollupOutput | RollupOutput[] | RollupWatcher>;

method buildApp

buildApp: () => Promise<void>;

interface ViteDevServer

interface ViteDevServer {}

property config

config: ResolvedConfig;

The resolved vite config object

property environments

environments: Record<'client' | 'ssr' | (string & {}), DevEnvironment>;

Module execution environments attached to the Vite server.

property hot

hot: NormalizedHotChannel;

An alias to server.environments.client.hot. If you want to interact with all environments, loop over server.environments.

property httpServer

httpServer: HttpServer | null;

native Node http server instance will be null in middleware mode

property middlewares

middlewares: Connect.Server;

A connect app instance. - Can be used to attach custom middlewares to the dev server. - Can also be used as the handler function of a custom http server or as a middleware in any connect-style Node.js frameworks
https://github.com/senchalabs/connect#use-middleware

property moduleGraph

moduleGraph: ModuleGraph;

Module graph that tracks the import relationships, url to file mapping and hmr state.

property pluginContainer

pluginContainer: PluginContainer;

Rollup plugin container that can run plugin hooks on a given file

property resolvedUrls

resolvedUrls: ResolvedServerUrls | null;

The resolved urls Vite prints on the CLI (URL-encoded). Returns null in middleware mode or if the server is not listening on any port.

property waitForRequestsIdle

waitForRequestsIdle: (ignoredId?: string) => Promise<void>;

Calling await server.waitForRequestsIdle(id) will wait until all static imports are processed. If called from a load or transform plugin hook, the id needs to be passed as a parameter to avoid deadlocks. Calling this function after the first static imports section of the module graph has been processed will resolve immediately.

property watcher

watcher: FSWatcher;

Chokidar watcher instance. If config.server.watch is set to null, it will not watch any files and calling add or unwatch will have no effect. https://github.com/paulmillr/chokidar/tree/3.6.0#api

property ws

ws: WebSocketServer;

web socket server with send(payload) method

method bindCLIShortcuts

bindCLIShortcuts: (options?: BindCLIShortcutsOptions<ViteDevServer>) => void;

Bind CLI shortcuts

method close

close: () => Promise<void>;

Stop the server.

method listen

listen: (port?: number, isRestart?: boolean) => Promise<ViteDevServer>;

Start the server.

method openBrowser

openBrowser: () => void;

Open browser

method printUrls

printUrls: () => void;

Print server urls

method reloadModule

reloadModule: (module: ModuleNode) => Promise<void>;

Triggers HMR for a module in the module graph. You can use the server.moduleGraph API to retrieve the module to be reloaded. If hmr is false, this is a no-op.

method restart

restart: (forceOptimize?: boolean) => Promise<void>;

Restart the server.
Parameter forceOptimize
force the optimizer to re-bundle, same as --force cli flag

method ssrFixStacktrace

ssrFixStacktrace: (e: Error) => void;

Mutates the given SSR error by rewriting the stacktrace

method ssrLoadModule

ssrLoadModule: (
    url: string,
    opts?: { fixStacktrace?: boolean }
) => Promise<Record<string, any>>;

Load a given URL as an instantiated module for SSR.

method ssrRewriteStacktrace

ssrRewriteStacktrace: (stack: string) => string;

Returns a fixed version of the given stack

method ssrTransform

ssrTransform: (
    code: string,
    inMap: SourceMap | { mappings: '' } | null,
    url: string,
    originalCode?: string
) => Promise<TransformResult | null>;

Transform module code into SSR format.

method transformIndexHtml

transformIndexHtml: (
    url: string,
    html: string,
    originalUrl?: string
) => Promise<string>;

Apply vite built-in HTML transforms and any plugin HTML transforms.

method transformRequest

transformRequest: (
    url: string,
    options?: TransformOptions
) => Promise<TransformResult | null>;

Programmatically resolve, load and transform a URL and get the result without going through the http request pipeline.

method warmupRequest

warmupRequest: (url: string, options?: TransformOptions) => Promise<void>;

Same as transformRequest but only warm up the URLs so the next request will already be cached. The function will never throw as it handles and reports errors internally.

interface WatchOptions

interface WatchOptions {}

property alwaysStat

alwaysStat?: boolean;

If relying upon the [fs.Stats](https://nodejs.org/api/fs.html#fs_class_fs_stats) object that may get passed with add, addDir, and change events, set this to true to ensure it is provided even in cases where it wasn't already available from the underlying watch events.

property atomic

atomic?: boolean | number;

true if useFsEvents and usePolling are false. Automatically filters out artifacts that occur when using editors that use "atomic writes" instead of writing directly to the source file. If a file is re-added within 100 ms of being deleted, Chokidar emits a change event rather than unlink then add. If the default of 100 ms does not work well for you, you can override it by setting atomic to a custom value, in milliseconds.

property awaitWriteFinish

awaitWriteFinish?: AwaitWriteFinishOptions | boolean;

can be set to an object in order to adjust timing params:

property binaryInterval

binaryInterval?: number;

Interval of file system polling for binary files. ([see list of binary extensions](https://gi thub.com/sindresorhus/binary-extensions/blob/master/binary-extensions.json))

property cwd

cwd?: string;

The base directory from which watch paths are to be derived. Paths emitted with events will be relative to this.

property depth

depth?: number;

If set, limits how many levels of subdirectories will be traversed.

property disableGlobbing

disableGlobbing?: boolean;

If set to true then the strings passed to .watch() and .add() are treated as literal path names, even if they look like globs.
false

property followSymlinks

followSymlinks?: boolean;

When false, only the symlinks themselves will be watched for changes instead of following the link references and bubbling events through the link's path.

property ignored

ignored?: AnymatchMatcher;

([anymatch](https://github.com/micromatch/anymatch)-compatible definition) Defines files/paths to be ignored. The whole relative or absolute path is tested, not just filename. If a function with two arguments is provided, it gets called twice per path - once with a single argument (the path), second time with two arguments (the path and the [fs.Stats](https://nodejs.org/api/fs.html#fs_class_fs_stats) object of that path).

property ignoreInitial

ignoreInitial?: boolean;

If set to false then add/addDir events are also emitted for matching paths while instantiating the watching as chokidar discovers these file paths (before the ready event).

property ignorePermissionErrors

ignorePermissionErrors?: boolean;

Indicates whether to watch files that don't have read permissions if possible. If watching fails due to EPERM or EACCES with this set to true, the errors will be suppressed silently.

property interval

interval?: number;

Interval of file system polling.

property persistent

persistent?: boolean;

Indicates whether the process should continue to run as long as files are being watched. If set to false when using fsevents to watch, no more events will be emitted after ready, even if the process continues to run.

property useFsEvents

useFsEvents?: boolean;

Whether to use the fsevents watching interface if available. When set to true explicitly and fsevents is available this supersedes the usePolling setting. When set to false on OS X, usePolling: true becomes the default.

property usePolling

usePolling?: boolean;

Whether to use fs.watchFile (backed by polling), or fs.watch. If polling leads to high CPU utilization, consider setting this to false. It is typically necessary to **set this to true to successfully watch files over a network**, and it may be necessary to successfully watch files in other non-standard situations. Setting to true explicitly on OS X overrides the useFsEvents default.

interface WebSocketAlias

interface WebSocketAlias extends WebSocket {}

interface WebSocketClient

interface WebSocketClient extends NormalizedHotChannelClient {}

property socket

socket: WebSocket;

The raw WebSocket instance

interface WebSocketServer

interface WebSocketServer extends NormalizedHotChannel {}

property [isWebSocketServer]

[isWebSocketServer]: true;

property clients

clients: Set<WebSocketClient>;

Get all connected clients.

property off

off: WebSocket.Server['off'] & {
    (event: string, listener: Function): void;
};

Unregister event listener.

property on

on: WebSocket.Server['on'] & {
    <T extends string>(
        event: T,
        listener: WebSocketCustomListener<hmrPayload_InferCustomEventPayload<T>>
    ): void;
};

Handle custom event emitted by import.meta.hot.send

method close

close: () => Promise<void>;

Disconnect all clients and terminate the server.

method listen

listen: () => void;

Listen on port and host

Type Aliases

type AliasOptions

type AliasOptions =
    | readonly Alias[]
    | {
          [find: string]: string;
      };

Specifies an Object, or an Array of Object, which defines aliases used to replace values in import or require statements. With either format, the order of the entries is important, in that the first defined rules are applied first.
This is passed to @rollup/plugin-alias as the "entries" field https://github.com/rollup/plugins/tree/master/packages/alias#entries

type AnymatchFn

type AnymatchFn = (testString: string) => boolean;

type AnymatchPattern

type AnymatchPattern = string | RegExp | AnymatchFn;

type AppType

type AppType = 'spa' | 'mpa' | 'custom';

spa: include SPA fallback middleware and configure sirv with single: true in preview
mpa: only include non-SPA HTML middlewares
custom: don't include HTML middlewares

type BindCLIShortcutsOptions

type BindCLIShortcutsOptions<Server = ViteDevServer | PreviewServer> = {
    /**
     * Print a one-line shortcuts "help" hint to the terminal
     */
    print?: boolean;
    /**
     * Custom shortcuts to run when a key is pressed. These shortcuts take priority
     * over the default shortcuts if they have the same keys (except the `h` key).
     * To disable a default shortcut, define the same key but with `action: undefined`.
     */
    customShortcuts?: CLIShortcut<Server>[];
};

type BuildAppHook

type BuildAppHook = (
    this: MinimalPluginContextWithoutEnvironment,
    builder: ViteBuilder
) => Promise<void>;

type BuildOptions

type BuildOptions = BuildEnvironmentOptions;

type CLIShortcut

type CLIShortcut<Server = ViteDevServer | PreviewServer> = {
    key: string;
    description: string;
    action?(server: Server): void | Promise<void>;
};

type CorsOrigin

type CorsOrigin = boolean | string | RegExp | (string | RegExp)[];

type DepOptimizationOptions

type DepOptimizationOptions = DepOptimizationConfig & {
    /**
     * By default, Vite will crawl your `index.html` to detect dependencies that
     * need to be pre-bundled. If `build.rollupOptions.input` is specified, Vite
     * will crawl those entry points instead.
     *
     * If neither of these fit your needs, you can specify custom entries using
     * this option - the value should be a tinyglobby pattern or array of patterns
     * (https://github.com/SuperchupuDev/tinyglobby) that are relative from
     * vite project root. This will overwrite default entries inference.
     */
    entries?: string | string[];
    /**
     * Force dep pre-optimization regardless of whether deps have changed.
     * @experimental
     */
    force?: boolean;
};

type Environment

type Environment = DevEnvironment | BuildEnvironment | UnknownEnvironment;

type ESBuildTransformResult

type ESBuildTransformResult = Omit<esbuild_TransformResult, 'map'> & {
    map: SourceMap;
};

type ExportsData

type ExportsData = {
    hasModuleSyntax: boolean;
    exports: readonly string[];
    jsxLoader?: boolean;
};

type FilterPattern

type FilterPattern = ReadonlyArray<string | RegExp> | string | RegExp | null;

Inlined to keep @rollup/pluginutils in devDependencies

type GeneralImportGlobOptions

type GeneralImportGlobOptions = ImportGlobOptions<boolean, string>;

type HMRPayload

type HMRPayload = HotPayload;

Deprecated
use HotPayload

type HookHandler

type HookHandler<T> = T extends ObjectHook<infer H> ? H : T;

type HotChannelListener

type HotChannelListener<T extends string = string> = (
    data: InferCustomEventPayload<T>,
    client: HotChannelClient
) => void;

type HotPayload

type HotPayload =
    | ConnectedPayload
    | PingPayload
    | UpdatePayload
    | FullReloadPayload
    | CustomPayload
    | ErrorPayload
    | PrunePayload;

type HttpServer

type HttpServer = http.Server | Http2SecureServer;

type IndexHtmlTransform

type IndexHtmlTransform =
    | IndexHtmlTransformHook
    | {
          order?: 'pre' | 'post' | null;
          handler: IndexHtmlTransformHook;
      };

type IndexHtmlTransformHook

type IndexHtmlTransformHook = (
    this: MinimalPluginContextWithoutEnvironment,
    html: string,
    ctx: IndexHtmlTransformContext
) => IndexHtmlTransformResult | void | Promise<IndexHtmlTransformResult | void>;

type IndexHtmlTransformResult

type IndexHtmlTransformResult =
    | string
    | HtmlTagDescriptor[]
    | {
          html: string;
          tags: HtmlTagDescriptor[];
      };

type InferCustomEventPayload

type InferCustomEventPayload<T extends string> = T extends keyof CustomEventMap
    ? CustomEventMap[T]
    : any;

provides types for payloads of built-in Vite events

type LessPreprocessorOptions

type LessPreprocessorOptions = {
    additionalData?: PreprocessorAdditionalData;
} & LessPreprocessorBaseOptions;

type LibraryFormats

type LibraryFormats = 'es' | 'cjs' | 'umd' | 'iife' | 'system';

type LightningCSSOptions

type LightningCSSOptions = Omit<
    Lightningcss.BundleAsyncOptions<Lightningcss.CustomAtRules>,
    | 'filename'
    | 'resolver'
    | 'minify'
    | 'sourceMap'
    | 'analyzeDependencies'
    // properties not overridden by Vite, but does not make sense to set by end users
    | 'inputSourceMap'
    | 'projectRoot'
>;

type LogLevel

type LogLevel = LogType | 'silent';

type LogType

type LogType = 'error' | 'warn' | 'info';

type Manifest

type Manifest = Record<string, ManifestChunk>;

type MapToFunction

type MapToFunction<T> = T extends Function ? T : never;

type Matcher

type AnymatchMatcher = AnymatchPattern | AnymatchPattern[];

type NormalizedServerHotChannel

type NormalizedServerHotChannel = NormalizedHotChannel<ServerHotChannelApi>;

type PluginOption

type PluginOption = Thenable<Plugin$1 | FalsyPlugin | PluginOption[]>;

type PreviewServerHook

type PreviewServerHook = (
    this: MinimalPluginContextWithoutEnvironment,
    server: PreviewServer
) => (() => void) | void | Promise<(() => void) | void>;

type RenderBuiltAssetUrl

type RenderBuiltAssetUrl = (
    filename: string,
    type: {
        type: 'asset' | 'public';
        hostId: string;
        hostType: 'js' | 'css' | 'html';
        ssr: boolean;
    }
) =>
    | string
    | {
          relative?: boolean;
          runtime?: string;
      }
    | undefined;

type ResolvedCSSOptions

type ResolvedCSSOptions = Omit<CSSOptions, 'lightningcss'> &
    Required<Pick<CSSOptions, 'transformer' | 'devSourcemap'>> & {
        lightningcss?: lightningcssOptions_LightningCSSOptions;
    };

type ResolvedDevEnvironmentOptions

type ResolvedDevEnvironmentOptions = Omit<
    Required<DevEnvironmentOptions>,
    'sourcemapIgnoreList'
> & {
    sourcemapIgnoreList: Exclude<
        DevEnvironmentOptions['sourcemapIgnoreList'],
        false | undefined
    >;
};

type ResolvedUrl

type ResolvedUrl = [
    url: string,
    resolvedId: string,
    meta: object | null | undefined
];

type ResolveFn

type ResolveFn = (
    id: string,
    importer?: string,
    aliasOnly?: boolean,
    ssr?: boolean
) => Promise<string | undefined>;

type ResolveModulePreloadDependenciesFn

type ResolveModulePreloadDependenciesFn = (
    filename: string,
    deps: string[],
    context: {
        hostId: string;
        hostType: 'html' | 'js';
    }
) => string[];

type ResolverFunction

type ResolverFunction = MapToFunction<PluginHooks['resolveId']>;

type SassPreprocessorOptions

type SassPreprocessorOptions = {
    additionalData?: PreprocessorAdditionalData;
} & SassModernPreprocessBaseOptions;

type ServerHook

type ServerHook = (
    this: MinimalPluginContextWithoutEnvironment,
    server: ViteDevServer
) => (() => void) | void | Promise<(() => void) | void>;

type ServerHotChannel

type ServerHotChannel = HotChannel<ServerHotChannelApi>;

type SkipInformation

type SkipInformation = {
    id: string;
    importer: string | undefined;
    plugin: Plugin$1;
    called?: boolean;
};

type SsrDepOptimizationConfig

type SsrDepOptimizationConfig = DepOptimizationConfig;

type SSRTarget

type SSRTarget = 'node' | 'webworker';

type StylusPreprocessorOptions

type StylusPreprocessorOptions = {
    additionalData?: PreprocessorAdditionalData;
} & StylusPreprocessorBaseOptions;

type UserConfigExport

type UserConfigExport =
    | UserConfig
    | Promise<UserConfig>
    | UserConfigFnObject
    | UserConfigFnPromise
    | UserConfigFn;

type UserConfigFn

type UserConfigFn = (env: ConfigEnv) => UserConfig | Promise<UserConfig>;

type UserConfigFnObject

type UserConfigFnObject = (env: ConfigEnv) => UserConfig;

type UserConfigFnPromise

type UserConfigFnPromise = (env: ConfigEnv) => Promise<UserConfig>;

type WebSocketCustomListener

type WebSocketCustomListener<T> = (
    data: T,
    client: WebSocketClient,
    invoke?: 'send' | `send:${string}`
) => void;

Namespaces

namespace *?inline

module '*?inline' {}

variable src

const src: string;

namespace *?no-inline

module '*?no-inline' {}

variable src

const src: string;

namespace *?raw

module '*?raw' {}

variable src

const src: string;

namespace *?sharedworker

module '*?sharedworker' {}

variable sharedWorkerConstructor

const sharedWorkerConstructor: new (options?: { name?: string }) => SharedWorker;

namespace *?sharedworker&inline

module '*?sharedworker&inline' {}

variable sharedWorkerConstructor

const sharedWorkerConstructor: new (options?: { name?: string }) => SharedWorker;

namespace *?sharedworker&url

module '*?sharedworker&url' {}

variable src

const src: string;

namespace *?url

module '*?url' {}

variable src

const src: string;

namespace *?url&inline

module '*?url&inline' {}

variable src

const src: string;

namespace *?url&no-inline

module '*?url&no-inline' {}

variable src

const src: string;

namespace *?worker

module '*?worker' {}

variable workerConstructor

const workerConstructor: new (options?: { name?: string }) => Worker;

namespace *?worker&inline

module '*?worker&inline' {}

variable workerConstructor

const workerConstructor: new (options?: { name?: string }) => Worker;

namespace *?worker&url

module '*?worker&url' {}

variable src

const src: string;

namespace *.aac

module '*.aac' {}

variable src

const src: string;

namespace *.apng

module '*.apng' {}

variable src

const src: string;

namespace *.avif

module '*.avif' {}

variable src

const src: string;

namespace *.bmp

module '*.bmp' {}

variable src

const src: string;

namespace *.css

module '*.css' {}

namespace *.cur

module '*.cur' {}

variable src

const src: string;

namespace *.eot

module '*.eot' {}

variable src

const src: string;

namespace *.flac

module '*.flac' {}

variable src

const src: string;

namespace *.gif

module '*.gif' {}

variable src

const src: string;

namespace *.ico

module '*.ico' {}

variable src

const src: string;

namespace *.jfif

module '*.jfif' {}

variable src

const src: string;

namespace *.jpeg

module '*.jpeg' {}

variable src

const src: string;

namespace *.jpg

module '*.jpg' {}

variable src

const src: string;

namespace *.jxl

module '*.jxl' {}

variable src

const src: string;

namespace *.less

module '*.less' {}

namespace *.m4a

module '*.m4a' {}

variable src

const src: string;

namespace *.module.css

module '*.module.css' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.less

module '*.module.less' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.pcss

module '*.module.pcss' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.sass

module '*.module.sass' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.scss

module '*.module.scss' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.sss

module '*.module.sss' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.styl

module '*.module.styl' {}

variable classes

const classes: CSSModuleClasses;

namespace *.module.stylus

module '*.module.stylus' {}

variable classes

const classes: CSSModuleClasses;

namespace *.mov

module '*.mov' {}

variable src

const src: string;

namespace *.mp3

module '*.mp3' {}

variable src

const src: string;

namespace *.mp4

module '*.mp4' {}

variable src

const src: string;

namespace *.ogg

module '*.ogg' {}

variable src

const src: string;

namespace *.opus

module '*.opus' {}

variable src

const src: string;

namespace *.otf

module '*.otf' {}

variable src

const src: string;

namespace *.pcss

module '*.pcss' {}

namespace *.pdf

module '*.pdf' {}

variable src

const src: string;

namespace *.pjp

module '*.pjp' {}

variable src

const src: string;

namespace *.pjpeg

module '*.pjpeg' {}

variable src

const src: string;

namespace *.png

module '*.png' {}

variable src

const src: string;

namespace *.sass

module '*.sass' {}

namespace *.scss

module '*.scss' {}

namespace *.sss

module '*.sss' {}

namespace *.styl

module '*.styl' {}

namespace *.stylus

module '*.stylus' {}

namespace *.svg

module '*.svg' {}

variable src

const src: string;

namespace *.ttf

module '*.ttf' {}

variable src

const src: string;

namespace *.txt

module '*.txt' {}

variable src

const src: string;

namespace *.vtt

module '*.vtt' {}

variable src

const src: string;

namespace *.wasm?init

module '*.wasm?init' {}

function initWasm

initWasm: (options?: WebAssembly.Imports) => Promise<WebAssembly.Instance>;

namespace *.wav

module '*.wav' {}

variable src

const src: string;

namespace *.webm

module '*.webm' {}

variable src

const src: string;

namespace *.webmanifest

module '*.webmanifest' {}

variable src

const src: string;

namespace *.webp

module '*.webp' {}

variable src

const src: string;

namespace *.woff

module '*.woff' {}

variable src

const src: string;

namespace *.woff2

module '*.woff2' {}

variable src

const src: string;

namespace Connect

namespace Connect {}

produces an instance of FSWatcher.

class IncomingMessage

class IncomingMessage extends http.IncomingMessage {}

property originalUrl

originalUrl?: any;

interface Server

interface Server extends NodeJS.EventEmitter {}

property route

route: string;

property stack

stack: ServerStackItem[];

method handle

handle: (
    req: http.IncomingMessage,
    res: http.ServerResponse,
    next: Function
) => void;

Handle server requests, punting them down the middleware stack.

method listen

listen: {
    (
        port: number,
        hostname?: string,
        backlog?: number,
        callback?: Function
    ): http.Server;
    (port: number, hostname?: string, callback?: Function): http.Server;
    (path: string, callback?: Function): http.Server;
    (handle: any, listeningListener?: Function): http.Server;
};

Listen for connections.
This method takes the same arguments as node's http.Server#listen().
HTTP and HTTPS:
If you run your application both as HTTP and HTTPS you may wrap them individually, since your Connect "server" is really just a JavaScript Function.
var connect = require('connect') , http = require('http') , https = require('https');
var app = connect();
http.createServer(app).listen(80); https.createServer(options, app).listen(443);

method use

use: {
    (fn: NextHandleFunction): Server;
    (fn: HandleFunction): Server;
    (route: string, fn: NextHandleFunction): Server;
    (route: string, fn: HandleFunction): Server;
};

Utilize the given middleware handle to the given route, defaulting to _/_. This "route" is the mount-point for the middleware, when given a value other than _/_ the middleware is only effective when that segment is present in the request's pathname.
For example if we were to mount a function at _/admin_, it would be invoked on _/admin_, and _/admin/settings_, however it would not be invoked for _/_, or _/posts_.

call signature

(req: http.IncomingMessage, res: http.ServerResponse, next?: Function): void;

interface ServerStackItem

interface ServerStackItem {}

property handle

handle: ServerHandle;

property route

route: string;

type ErrorHandleFunction

type ErrorHandleFunction = (
    err: any,
    req: IncomingMessage,
    res: http.ServerResponse,
    next: NextFunction
) => void;

type HandleFunction

type HandleFunction =
    | SimpleHandleFunction
    | NextHandleFunction
    | ErrorHandleFunction;

type NextFunction

type NextFunction = (err?: any) => void;

type NextHandleFunction

type NextHandleFunction = (
    req: IncomingMessage,
    res: http.ServerResponse,
    next: NextFunction
) => void;

type ServerHandle

type ServerHandle = HandleFunction | http.Server;

type SimpleHandleFunction

type SimpleHandleFunction = (req: IncomingMessage, res: http.ServerResponse) => void;

namespace HttpProxy

namespace HttpProxy {}

function createProxy

createProxy: <
    TIncomingMessage extends any = any,
    TServerResponse extends any = any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server.
Examples:
httpProxy.createProxyServer({ .. }, 8000) // => '{ web: [Function], ws: [Function] ... }'
Parameter Options
Config object passed to the proxy
{Object} Proxy Proxy object with handlers for ws and web requests
public

function createProxyServer

createProxyServer: <
    TIncomingMessage extends any = any,
    TServerResponse extends any = any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server.
Examples:
httpProxy.createProxyServer({ .. }, 8000) // => '{ web: [Function], ws: [Function] ... }'
Parameter Options
Config object passed to the proxy
{Object} Proxy Proxy object with handlers for ws and web requests
public

function createServer

createServer: <
    TIncomingMessage extends any = any,
    TServerResponse extends any = any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server.
Examples:
httpProxy.createProxyServer({ .. }, 8000) // => '{ web: [Function], ws: [Function] ... }'
Parameter Options
Config object passed to the proxy
{Object} Proxy Proxy object with handlers for ws and web requests
public

function numOpenSockets

numOpenSockets: () => number;

class ProxyServer

class ProxyServer<
    TIncomingMessage extends typeof http.IncomingMessage = typeof http.IncomingMessage,
    TServerResponse extends typeof http.ServerResponse = typeof http.ServerResponse,
    TError = Error
> extends EventEmitter<
    ProxyServerEventMap<TIncomingMessage, TServerResponse, TError>
> {}

constructor

constructor(options?: ServerOptions$3);

Creates the proxy server with specified options.
Parameter options
Config object passed to the proxy

property address

address: () => string | net.AddressInfo | null | undefined;

property after

after: <PT extends ProxyType>(
    type: PT,
    passName: string,
    cb: PassFunctions<TIncomingMessage, TServerResponse, TError>[PT]
) => void;

property before

before: <PT extends ProxyType>(
    type: PT,
    passName: string,
    cb: PassFunctions<TIncomingMessage, TServerResponse, TError>[PT]
) => void;

property close

close: (cb?: Function) => void;

A function that closes the inner webserver and stops listening on given port

property createRightProxy

createRightProxy: <PT extends ProxyType>(type: PT) => Function;

property listen

listen: (port: number, hostname?: string) => this;

A function that wraps the object in a webserver, for your convenience
Parameter port
Port to listen on
Parameter hostname
The hostname to listen on

property onError

onError: (err: TError) => void;

property web

readonly web: (
    ...args: ProxyMethodArgs<TIncomingMessage, TServerResponse, TError>['web']
) => void;

Used for proxying regular HTTP(S) requests
Parameter req
Client request.
Parameter res
Client response.
Parameter options
Additional options.

property ws

readonly ws: (
    ...args: ProxyMethodArgs<TIncomingMessage, TServerResponse, TError>['ws']
) => void;

Used for proxying WS(S) requests
Parameter req
Client request.
Parameter socket
Client socket.
Parameter head
Client head.
Parameter options
Additional options.

method createProxy

static createProxy: <
    TIncomingMessage extends any,
    TServerResponse extends any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server with specified options.
Parameter options
Config object passed to the proxy
Returns
Proxy object with handlers for ws and web requests

method createProxyServer

static createProxyServer: <
    TIncomingMessage extends any,
    TServerResponse extends any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server with specified options.
Parameter options
Config object passed to the proxy
Returns
Proxy object with handlers for ws and web requests

method createServer

static createServer: <
    TIncomingMessage extends any,
    TServerResponse extends any,
    TError = Error
>(
    options?: ServerOptions$3
) => ProxyServer<TIncomingMessage, TServerResponse, TError>;

Creates the proxy server with specified options.
Parameter options
Config object passed to the proxy
Returns
Proxy object with handlers for ws and web requests

interface ServerOptions

interface ServerOptions$3 {}

property agent

agent?: any;

Object to be passed to http(s).request.

property auth

auth?: string;

Basic authentication i.e. 'user:password' to compute an Authorization header.

property autoRewrite

autoRewrite?: boolean;

Rewrites the location host/ port on (301 / 302 / 307 / 308) redirects based on requested host/ port.Default: false.

property buffer

buffer?: Stream;

Buffer

property ca

ca?: string;

Optionally override the trusted CA certificates. This is passed to https.request.

property changeOrigin

changeOrigin?: boolean;

Changes the origin of the host header to the target URL.

property cookieDomainRewrite

cookieDomainRewrite?:
    | false
    | string
    | {
          [oldDomain: string]: string;
      };

rewrites domain of set-cookie headers.

property cookiePathRewrite

cookiePathRewrite?:
    | false
    | string
    | {
          [oldPath: string]: string;
      };

rewrites path of set-cookie headers. Default: false

property followRedirects

followRedirects?: boolean;

Specify whether you want to follow redirects. Default: false

property forward

forward?: ProxyTargetUrl;

URL string to be parsed with the url module or a URL object.

property headers

headers?: {
    [header: string]: string | string[] | undefined;
};

object with extra headers to be added to target requests.

property hostRewrite

hostRewrite?: string;

Rewrites the location hostname on (301 / 302 / 307 / 308) redirects, Default: null.

property ignorePath

ignorePath?: boolean;

Specify whether you want to ignore the proxy path of the incoming request.

property localAddress

localAddress?: string;

Local interface string to bind for outgoing connections.

property method

method?: string;

Explicitly set the method type of the ProxyReq

property prependPath

prependPath?: boolean;

Specify whether you want to prepend the target's path to the proxy path.

property preserveHeaderKeyCase

preserveHeaderKeyCase?: boolean;

specify whether you want to keep letter case of response header key

property protocolRewrite

protocolRewrite?: string;

Rewrites the location protocol on (301 / 302 / 307 / 308) redirects to 'http' or 'https'.Default: null.

property proxyTimeout

proxyTimeout?: number;

Timeout (in milliseconds) when proxy receives no response from target. Default: 120000 (2 minutes)

property secure

secure?: boolean;

Verify SSL certificate.

property selfHandleResponse

selfHandleResponse?: boolean;

If set to true, none of the webOutgoing passes are called and it's your responsibility to appropriately return the response by listening and acting on the proxyRes event

property ssl

ssl?: any;

Object to be passed to https.createServer().

property target

target?: ProxyTarget;

URL string to be parsed with the url module.

property timeout

timeout?: number;

Timeout (in milliseconds) for incoming requests

property toProxy

toProxy?: boolean;

Explicitly specify if we are proxying to another proxy.

property ws

ws?: boolean;

If you want to proxy websockets.

property xfwd

xfwd?: boolean;

Adds x- forward headers.

type ErrorCallback

type ErrorCallback<
    TIncomingMessage extends typeof http.IncomingMessage = typeof http.IncomingMessage,
    TServerResponse extends typeof http.ServerResponse = typeof http.ServerResponse,
    TError = Error
> = (
    err: TError,
    req: InstanceType<TIncomingMessage>,
    res: InstanceType<TServerResponse> | net.Socket,
    target?: ProxyTargetUrl
) => void;

type ProxyTarget

type ProxyTarget = ProxyTargetUrl | ProxyTargetDetailed;

type ProxyTargetUrl

type ProxyTargetUrl =
    | URL
    | string
    | {
          port: number;
          host: string;
          protocol?: string;
      };

namespace WebSocket

namespace WebSocket {}

variable WebSocket

const WebSocket: typeof WebSocket;

variable WebSocketServer

const WebSocketServer: typeof Server;

function createWebSocketStream

createWebSocketStream: (websocket: WebSocket, options?: DuplexOptions) => Duplex;

class Server

class Server<T extends WebSocket = WebSocket> extends EventEmitter {}

constructor

constructor(options?: ServerOptions, callback?: () => void);

property clients

clients: Set<T>;

property options

options: ServerOptions;

property path

path: string;

method addListener

addListener: {
    (
        event: 'connection',
        cb: (client: T, request: http.IncomingMessage) => void
    ): this;
    (event: 'error', cb: (err: Error) => void): this;
    (
        event: 'headers',
        cb: (headers: string[], request: http.IncomingMessage) => void
    ): this;
    (event: 'close' | 'listening', cb: () => void): this;
    (event: string | symbol, listener: (...args: any[]) => void): this;
};

method address

address: () => AddressInfo | string;

method close

close: (cb?: (err?: Error) => void) => void;

method handleUpgrade

handleUpgrade: (
    request: http.IncomingMessage,
    socket: Duplex,
    upgradeHead: Buffer,
    callback: (client: T, request: http.IncomingMessage) => void
) => void;

method off

off: {
    (
        event: 'connection',
        cb: (this: Server<T>, socket: T, request: http.IncomingMessage) => void
    ): this;
    (event: 'error', cb: (this: Server<T>, error: Error) => void): this;
    (
        event: 'headers',
        cb: (
            this: Server<T>,
            headers: string[],
            request: http.IncomingMessage
        ) => void
    ): this;
    (event: 'close' | 'listening', cb: (this: Server<T>) => void): this;
    (
        event: string | symbol,
        listener: (this: Server<T>, ...args: any[]) => void
    ): this;
};

method on

on: {
    (
        event: 'connection',
        cb: (this: Server<T>, socket: T, request: http.IncomingMessage) => void
    ): this;
    (event: 'error', cb: (this: Server<T>, error: Error) => void): this;
    (
        event: 'headers',
        cb: (
            this: Server<T>,
            headers: string[],
            request: http.IncomingMessage
        ) => void
    ): this;
    (event: 'close' | 'listening', cb: (this: Server<T>) => void): this;
    (
        event: string | symbol,
        listener: (this: Server<T>, ...args: any[]) => void
    ): this;
};

method once

once: {
    (
        event: 'connection',
        cb: (this: Server<T>, socket: T, request: http.IncomingMessage) => void
    ): this;
    (event: 'error', cb: (this: Server<T>, error: Error) => void): this;
    (
        event: 'headers',
        cb: (
            this: Server<T>,
            headers: string[],
            request: http.IncomingMessage
        ) => void
    ): this;
    (event: 'close' | 'listening', cb: (this: Server<T>) => void): this;
    (
        event: string | symbol,
        listener: (this: Server<T>, ...args: any[]) => void
    ): this;
};

method removeListener

removeListener: {
    (event: 'connection', cb: (client: T) => void): this;
    (event: 'error', cb: (err: Error) => void): this;
    (
        event: 'headers',
        cb: (headers: string[], request: http.IncomingMessage) => void
    ): this;
    (event: 'close' | 'listening', cb: () => void): this;
    (event: string | symbol, listener: (...args: any[]) => void): this;
};

method shouldHandle

shouldHandle: (request: http.IncomingMessage) => boolean | Promise<boolean>;

interface AddressInfo

interface AddressInfo {}

property address

address: string;

property family

family: string;

property port

port: number;

interface ClientOptions

interface ClientOptions extends SecureContextOptions {}

property agent

agent?: Agent | undefined;

property family

family?: number | undefined;

property followRedirects

followRedirects?: boolean | undefined;

property handshakeTimeout

handshakeTimeout?: number | undefined;

property headers

headers?:
    | {
          [key: string]: string;
      }
    | undefined;

property host

host?: string | undefined;

property localAddress

localAddress?: string | undefined;

property maxPayload

maxPayload?: number | undefined;

property maxRedirects

maxRedirects?: number | undefined;

property origin

origin?: string | undefined;

property perMessageDeflate

perMessageDeflate?: boolean | PerMessageDeflateOptions | undefined;

property protocol

protocol?: string | undefined;

property protocolVersion

protocolVersion?: number | undefined;

property rejectUnauthorized

rejectUnauthorized?: boolean | undefined;

property skipUTF8Validation

skipUTF8Validation?: boolean | undefined;

method checkServerIdentity

checkServerIdentity: (servername: string, cert: CertMeta) => boolean;

method generateMask

generateMask: (mask: Buffer) => void;

interface CloseEvent

interface CloseEvent {}

property code

code: number;

property reason

reason: string;

property target

target: WebSocket;

property type

type: string;

property wasClean

wasClean: boolean;

interface ErrorEvent

interface ErrorEvent {}

property error

error: any;

property message

message: string;

property target

target: WebSocket;

property type

type: string;

interface Event

interface Event {}

property target

target: WebSocket;

property type

type: string;

interface EventListenerOptions

interface EventListenerOptions {}

property once

once?: boolean | undefined;

interface MessageEvent

interface MessageEvent {}

property data

data: Data;

property target

target: WebSocket;

property type

type: string;

interface PerMessageDeflateOptions

interface PerMessageDeflateOptions {}

property clientMaxWindowBits

clientMaxWindowBits?: number | undefined;

property clientNoContextTakeover

clientNoContextTakeover?: boolean | undefined;

property concurrencyLimit

concurrencyLimit?: number | undefined;

property serverMaxWindowBits

serverMaxWindowBits?: number | undefined;

property serverNoContextTakeover

serverNoContextTakeover?: boolean | undefined;

property threshold

threshold?: number | undefined;

property zlibDeflateOptions

zlibDeflateOptions?:
    | {
          flush?: number | undefined;
          finishFlush?: number | undefined;
          chunkSize?: number | undefined;
          windowBits?: number | undefined;
          level?: number | undefined;
          memLevel?: number | undefined;
          strategy?: number | undefined;
          dictionary?: Buffer | Buffer[] | DataView | undefined;
          info?: boolean | undefined;
      }
    | undefined;

property zlibInflateOptions

zlibInflateOptions?: ZlibOptions | undefined;

interface ServerOptions

interface ServerOptions {}

property backlog

backlog?: number | undefined;

property clientTracking

clientTracking?: boolean | undefined;

property handleProtocols

handleProtocols?: (
    protocols: Set<string>,
    request: http.IncomingMessage
) => string | false;

property host

host?: string | undefined;

property maxPayload

maxPayload?: number | undefined;

property noServer

noServer?: boolean | undefined;

property path

path?: string | undefined;

property perMessageDeflate

perMessageDeflate?: boolean | PerMessageDeflateOptions | undefined;

property port

port?: number | undefined;

property server

server?: http.Server | HttpsServer | undefined;

property skipUTF8Validation

skipUTF8Validation?: boolean | undefined;

property verifyClient

verifyClient?: VerifyClientCallbackAsync | VerifyClientCallbackSync | undefined;

property WebSocket

WebSocket?: typeof WebSocket.WebSocket | undefined;

interface WebSocket

interface WebSocket extends WebSocketAlias {}

interface WebSocketServer

interface WebSocketServer extends Server {}

type CertMeta

type CertMeta = string | string[] | Buffer | Buffer[];

CertMeta represents the accepted types for certificate & key data.

type Data

type Data = string | Buffer | ArrayBuffer | Buffer[];

Data represents the message payload received over the WebSocket.

type RawData

type RawData = Buffer | ArrayBuffer | Buffer[];

Data represents the raw message payload received over the WebSocket.

type VerifyClientCallbackAsync

type VerifyClientCallbackAsync = (
    info: {
        origin: string;
        secure: boolean;
        req: http.IncomingMessage;
    },
    callback: (
        res: boolean,
        code?: number,
        message?: string,
        headers?: OutgoingHttpHeaders
    ) => void
) => void;

VerifyClientCallbackAsync is an asynchronous callback used to inspect the incoming message. The return value (boolean) of the function determines whether or not to accept the handshake.

type VerifyClientCallbackSync

type VerifyClientCallbackSync = (info: {
    origin: string;
    secure: boolean;
    req: http.IncomingMessage;
}) => boolean;

VerifyClientCallbackSync is a synchronous callback used to inspect the incoming message. The return value (boolean) of the function determines whether or not to accept the handshake.

Package Files (7)

Dependencies (6)

Peer Dependencies (11)

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vite

Install

Overview

Index

Variables

Functions

Classes

Interfaces

Type Aliases

Namespaces

Variables

variable defaultAllowedOrigins

variable defaultClientConditions

variable defaultClientMainFields

variable defaultExternalConditions

variable defaultServerConditions

variable defaultServerMainFields

variable isWebSocketServer

variable rollupVersion

variable version

variable WebSocketAlias

Functions

function build

function buildErrorMessage

function createBuilder

Modifiers

function createFetchableDevEnvironment

function createFilter

function createIdResolver

function createLogger

function createProxyServer

Parameter Options

function createRunnableDevEnvironment

function createServer

function createServerHotChannel

function createServerModuleRunner

Modifiers

function createServerModuleRunnerTransport

function defineConfig

function fetchModule

Modifiers

function formatPostcssSourceMap

function isCSSRequest

function isFetchableDevEnvironment

function isFileLoadingAllowed

function isFileServingAllowed

Deprecated

function isRunnableDevEnvironment

function loadConfigFromFile

function loadEnv

function mergeAlias

function mergeConfig

function moduleRunnerTransform

function normalizePath

function numOpenSockets

function optimizeDeps

Deprecated

function perEnvironmentPlugin

Modifiers

function perEnvironmentState

Modifiers

function preprocessCSS

Modifiers

function preview

function resolveConfig

function resolveEnvPrefix

function runnerImport

Modifiers

function searchForWorkspaceRoot

function send

function sortUserPlugins

function transformWithEsbuild

Classes

class BuildEnvironment

constructor

property isBuilt

property mode

method init

class DevEnvironment

constructor