query-registry

query-registry

Version 2.6.0
Published 1 year ago
404 kB
5 dependencies
MIT license

Install

npm i query-registry

yarn add query-registry

pnpm add query-registry

Overview

This package exports several functions to query the npm registry (or one of its mirrors) through one of its endpoints.

Example 1

Get the metadata for the npm registry:

import { getRegistryMetadata } from 'query-registry';

(async () => {
    const metadata = await getRegistryMetadata();

    // Output: 'registry'
    console.log(metadata.db_name);
})();

Example 2

Get the latest manifest for package query-registry from the npm registry:

import { getPackageManifest } from 'query-registry';

(async () => {
    const manifest = await getPackageManifest({ name: 'query-registry' });

    // Output: 'query-registry'
    console.log(manifest.name);
})();

Example 3

Get the abbreviated packument for package query-registry from the npm registry:

import { getAbbreviatedPackument } from 'query-registry';

(async () => {
    const packument = await getAbbreviatedPackument({ name: 'query-registry' });

    // Output: 'query-registry'
    console.log(manifest.name);
})();

Example 4

Get the weekly downloads for package query-registry from the npm registry:

import { getPackageDownloads } from 'query-registry';

(async () => {
    const downloads = await getPackageDownloads({ name: 'query-registry' });

    // Output: 'query-registry'
    console.log(downloads.package);

    // Output: 'number'
    console.log(typeof downloads.downloads);
})();

Example 5

Get the search results for text query query-registry from the npm registry:

import { searchPackages } from 'query-registry';

(async () => {
    const results = await searchPackages({ query: { text: 'query-registry' } });

    // Output: 'query-registry'
    console.log(results.objects[0].package.name);
})();

Example 6

Enable debug messages by setting the DEBUG environment variable to query-registry (available only in non production environments):

$ DEBUG="query-registry"

Index

Variables

variable cloudflareRegistry

const cloudflareRegistry: string;

npm registry mirror by Cloudflare
Remarks
This registry has CORS enabled and can be used to retrieve package manifests and packuments in the browser.
See Also
- https://npmjs.cf
- https://registry.npmjs.cf

variable InvalidPackageNameError

const InvalidPackageNameError: any;

InvalidPackageNameError is thrown when the name of a package is not valid according to the npm registry naming rules.
The instanceof operator can be used to check for this error.
See Also
- https://www.npmjs.com/package/validate-npm-package-name

variable InvalidPackageVersionError

const InvalidPackageVersionError: any;

InvalidPackageVersionError is thrown when a package's version does not exist.
The instanceof operator can be used to check for this error.

variable npmRegistry

const npmRegistry: string;

npm registry
See Also
- https://registry.npmjs.org

variable npmRegistryDownloadsAPI

const npmRegistryDownloadsAPI: string;

Downloads API for the npm registry
See Also
- https://api.npmjs.org

variable npmRegistryMirrors

const npmRegistryMirrors: string[];

Mirrors of the npm registry.
See Also
- cloudflareRegistry
- yarnRegistry

variable yarnRegistry

const yarnRegistry: string;

npm registry mirror by Yarn
See Also
- https://registry.yarnpkg.com

Functions

function getAbbreviatedPackument

getAbbreviatedPackument: ({
    name,
    registry,
    mirrors,
    cached,
}: {
    name: string;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<AbbreviatedPackument>;

getAbbreviatedPackument returns the abbreviated packument (package document) containing only the metadata necessary to install a package present on the registry.
Parameter name
package name
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Remarks
To get all the metadata (full packument) about a package see getPackument.
Example 1
Get the abbreviated packument for package query-registry from the npm registry:
import { getAbbreviatedPackument } from 'query-registry'; (async () => { const packument = await getAbbreviatedPackument({ name: 'query-registry' }); // Output: 'query-registry' console.log(packument.name); })();
See Also

function getDailyPackageDownloads

getDailyPackageDownloads: ({
    name,
    period: rawDownloadPeriod,
    registryDownloadsAPI,
    cached,
}: {
    name: string;
    period?: DownloadPeriod;
    registryDownloadsAPI?: string;
    cached?: boolean;
}) => Promise<DailyPackageDownloads>;

getDailyPackageDownloads returns the number of downloads for a package for each day in a given time period.

Parameter name

package name

Parameter period

time period in which downloads happened (default: last-week)

Parameter registryDownloadsAPI

URL of the registry's downloads API (default: npm registry)

Parameter cached

accept cached responses (default: true)

Example 1

Get the day by day weekly downloads for package query-registry from the npm registry:

import { getDailyPackageDownloads } from 'query-registry';

(async () => {
    const downloads = await getDailyPackageDownloads({ name: 'query-registry' });

    // Output: 'query-registry'
    console.log(downloads.package);

    // Output: 'number'
    console.log(typeof downloads.downloads[0].downloads);
})();

Example 2

Get the day by day monthly downloads for package query-registry from the npm registry:

import { getDailyPackageDownloads } from 'query-registry';

(async () => {
    const downloads = await getDailyPackageDownloads({ name: 'query-registry', period: 'last-month' });

    // Output: 'query-registry'
    console.log(downloads.package);

    // Output: 'number'
    console.log(typeof downloads.downloads[0].downloads);
})();

function getDailyRegistryDownloads

getDailyRegistryDownloads: ({
    period: rawDownloadPeriod,
    registryDownloadsAPI,
    cached,
}?: {
    period?: DownloadPeriod;
    registryDownloadsAPI?: string;
    cached?: boolean;
}) => Promise<DailyRegistryDownloads>;

getDailyRegistryDownloads returns the number of downloads for all registry packages for each day in a given time period.
Parameter period
time period in which downloads happened (default: last-week)
Parameter registryDownloadsAPI
URL of the registry's downloads API (default: npm registry)
Parameter cached
accept cached responses (default: true)
Example 1
Get the day by day weekly downloads for the npm registry:
import { getDailyRegistryDownloads } from 'query-registry'; (async () => { const downloads = await getDailyRegistryDownloads(); // Output: 'number' console.log(typeof downloads.downloads[0].downloads); })();
Example 2
Get the day by day monthly downloads for the npm registry:
import { getDailyRegistryDownloads } from 'query-registry'; (async () => { const downloads = await getDailyRegistryDownloads({ period: 'last-month' }); // Output: 'number' console.log(typeof downloads.downloads[0].downloads); })();
See Also

function getPackageDownloads

getPackageDownloads: ({
    name,
    period: rawDownloadPeriod,
    registryDownloadsAPI,
    cached,
}: {
    name: string;
    period?: DownloadPeriod;
    registryDownloadsAPI?: string;
    cached?: boolean;
}) => Promise<PackageDownloads>;

getPackageDownloads returns the number of downloads for a package in a given time period.

Parameter name

package name

Parameter period

time period in which downloads happened (default: last-week)

Parameter registryDownloadsAPI

URL of the registry's downloads API (default: npm registry)

Parameter cached

accept cached responses (default: true)

Example 1

Get the weekly downloads for package query-registry from the npm registry:

import { getPackageDownloads } from 'query-registry';

(async () => {
    const downloads = await getPackageDownloads({ name: 'query-registry' });

    // Output: 'query-registry'
    console.log(downloads.package);

    // Output: 'number'
    console.log(typeof downloads.downloads);
})();

Example 2

Get the monthly downloads for package query-registry from the npm registry:

import { getPackageDownloads } from 'query-registry';

(async () => {
    const downloads = await getPackageDownloads({ name: 'query-registry', period: 'last-month' });

    // Output: 'query-registry'
    console.log(downloads.package);

    // Output: 'number'
    console.log(typeof downloads.downloads);
})();

function getPackageManifest

getPackageManifest: ({
    name,
    version,
    registry,
    mirrors,
    cached,
}: {
    name: string;
    version?: string;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<PackageManifest>;

getPackageManifest returns the manifest describing a specific version of a package.
Parameter name
package name
Parameter version
package version (default: latest)
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Example 1
Get the latest manifest for package query-registry from the npm registry:
import { getPackageManifest } from 'query-registry'; (async () => { const manifest = await getPackageManifest({ name: 'query-registry' }); // Output: 'query-registry' console.log(manifest.name); })();
Example 2
Get the manifest for package query-registry@1.0.0 from the npm registry:
import { getPackageManifest } from 'query-registry'; (async () => { const manifest = await getPackageManifest({ name: 'query-registry', version: '1.0.0' }); // Output: 'query-registry' console.log(manifest.name); // Output: '1.0.0' console.log(manifest.version); })();
See Also

function getPackument

getPackument: ({
    name,
    registry,
    mirrors,
    cached,
}: {
    name: string;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<Packument>;

getPackument returns the packument (package document) containing all the metadata about a package present on the registry.
Parameter name
package name
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Example 1
Get the packument for package query-registry from the npm registry:
import { getPackument } from 'query-registry'; (async () => { const packument = await getPackument({ name: 'query-registry' }); // Output: 'query-registry' console.log(packument.name); })();
See Also

function getRawAbbreviatedPackument

getRawAbbreviatedPackument: ({
    name,
    registry,
    mirrors,
    cached,
}: {
    name: string;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<RawAbbreviatedPackument>;

getRawAbbreviatedPackument returns the abbreviated packument (package document) containing only the metadata necessary to install a package present on the registry.
Note: the abbreviated packument is returned as retrieved from the registry.
Parameter name
package name
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Example 1
Get the abbreviated packument for package query-registry from the npm registry:
import { getRawAbbreviatedPackument } from 'query-registry'; (async () => { const packument = await getRawAbbreviatedPackument({ name: 'query-registry' }); // Output: 'query-registry' console.log(packument.name); })();
See Also

function getRawPackageManifest

getRawPackageManifest: ({
    name,
    version,
    registry,
    mirrors,
    cached,
}: {
    name: string;
    version?: string;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<RawPackageManifest>;

getRawPackageManifest returns the manifest describing a specific version of a package.
Note: the manifest is returned as retrieved from the registry.
Parameter name
package name
Parameter version
package version (default: latest)
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Example 1
Get the latest manifest for package query-registry from the npm registry:
import { getRawPackageManifest } from 'query-registry'; (async () => { const manifest = await getRawPackageManifest({ name: 'query-registry' }); // Output: 'query-registry' console.log(manifest.name); })();
Example 2
Get the manifest for package query-registry@1.0.0 from the npm registry:
import { getRawPackageManifest } from 'query-registry'; (async () => { const manifest = await getRawPackageManifest({ name: 'query-registry', version: '1.0.0' }); // Output: 'query-registry' console.log(manifest.name); // Output: '1.0.0' console.log(manifest.version); })();
See Also

function getRawPackument

getRawPackument: ({
    name,
    registry,
    mirrors,
    cached,
}: {
    name: string;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<RawPackument>;

getRawPackument returns the packument (package document) containing all the metadata about a package present on the registry.
Note: the packument is returned as retrieved from the registry.
Parameter name
package name
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Example 1
Get the packument for package query-registry from the npm registry:
import { getRawPackument } from 'query-registry'; (async () => { const packument = await getRawPackument({ name: 'query-registry' }); // Output: 'query-registry' console.log(packument.name); })();
See Also

function getRegistryDownloads

getRegistryDownloads: ({
    period: rawDownloadPeriod,
    registryDownloadsAPI,
    cached,
}?: {
    period?: DownloadPeriod;
    registryDownloadsAPI?: string;
    cached?: boolean;
}) => Promise<RegistryDownloads>;

getRegistryDownloads returns the number of downloads for all registry packages in a given time period.
Parameter period
time period in which downloads happened (default: last-week)
Parameter registryDownloadsAPI
URL of the registry's downloads API (default: npm registry)
Parameter cached
accept cached responses (default: true)
Example 1
Get the weekly downloads for the npm registry:
import { getRegistryDownloads } from 'query-registry'; (async () => { const downloads = await getRegistryDownloads(); // Output: 'number' console.log(typeof downloads.downloads); })();
Example 2
Get the monthly downloads for the npm registry:
import { getRegistryDownloads } from 'query-registry'; (async () => { const downloads = await getRegistryDownloads({ period: 'last-month' }); // Output: 'number' console.log(typeof downloads.downloads); })();
See Also

function getRegistryMetadata

getRegistryMetadata: ({
    registry,
    cached,
}?: {
    registry?: string;
    cached?: boolean;
}) => Promise<RegistryMetadata>;

getRegistryMetadata returns the metadata describing the registry itself.

Parameter registry

URL of the registry (default: npm registry)

Parameter cached

accept cached responses (default: true)

Example 1

Get the metadata for the npm registry:

import { getRegistryMetadata } from 'query-registry';

(async () => {
    const metadata = await getRegistryMetadata();

    // Output: 'registry'
    console.log(metadata.db_name);
})();

Example 2

Get the metadata for a custom registry:

import { getRegistryMetadata } from 'query-registry';

(async () => {
    const metadata = await getRegistryMetadata({ registry: 'https://example.com' });
})();

function searchPackages

searchPackages: ({
    query: rawSearchCriteria,
    registry,
    mirrors,
    cached,
}: {
    query: SearchCriteria;
    registry?: string;
    mirrors?: string[];
    cached?: boolean;
}) => Promise<SearchResults>;

searchPackages returns the packages corresponding to a given query.
Parameter query
one or more search criteria
Parameter registry
URL of the registry (default: npm registry)
Parameter mirrors
URLs of the registry mirrors (default: npm registry mirrors)
Parameter cached
accept cached responses (default: true)
Example 1
Get the search results for text query query-registry from the npm registry:
import { searchPackages } from 'query-registry'; (async () => { const results = await searchPackages({ query: { text: 'query-registry' } }); // Output: 'query-registry' console.log(results.objects[0].package.name); })();
See Also

Classes

class FetchError

class FetchError extends BaseError {}

FetchError represents an error that happened when fetching a URL.
The instanceof operator can be used to check for this error.

constructor

constructor(url: string, response: Response);

property response

readonly response: Response;

Response received

property url

readonly url: string;

URL originally fetched

Interfaces

interface AbbreviatedPackument

interface AbbreviatedPackument extends RawAbbreviatedPackument {}

AbbreviatedPackument represents a packument (package document) containing only the metadata necessary to install a package.
See Also
- RawAbbreviatedPackument

property distTags

readonly distTags: DistTags;

Mapping of distribution tags to version numbers (alias to dist-tags)
See Also
- DistTags

property id

readonly id: string;

Unique package name (for example, foo or @bar/baz)

property modifiedAt

readonly modifiedAt: string;

Timestamp of when the package was last modified in ISO 8601 format (for example, 2021-11-23T19:12:24.006Z); (alias to modified)

interface BugTracker

interface BugTracker {}

BugTracker represents the bug tracking methods.

property email

readonly email?: string;

property url

readonly url?: string;

interface DailyPackageDownloads

interface DailyPackageDownloads extends DailyRegistryDownloads {}

DailyPackageDownloads lists the number of downloads for a package for each day in a given time period.
See Also
- DailyRegistryDownloads
- https://github.com/npm/registry/blob/master/docs/download-counts.md#ranges

property package

readonly package: string;

Package name

interface DailyRegistryDownloads

interface DailyRegistryDownloads {}

DailyRegistryDownloads lists the number of downloads for the registry for each day in a given time period.
See Also
- DownloadsPerDay
- https://github.com/npm/registry/blob/master/docs/download-counts.md#ranges

property downloads

readonly downloads: DownloadsPerDay[];

Download counts per day

property end

readonly end: string;

Date of the last day (inclusive)

property start

readonly start: string;

Date of the first day (inclusive)

interface DateRange

interface DateRange {}

DateRange represents a time period between two days where the start and end dates are inclusive.
Example 1
const dateRange = { start: new Date('2019-01-01'), end: new Date('2020-01-01'), };
See Also
- https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

property end

readonly end: Date;

Date of the last day (inclusive)

property start

readonly start: Date;

Date of the first day (inclusive)

interface DistInfo

interface DistInfo {}

DistInfo contains data describing the distributed package.
See Also
- https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md#dist

property 'npm-signature'

readonly 'npm-signature'?: string;

npm PGP signature

property fileCount

readonly fileCount?: number;

Number of files in the tarball

property integrity

readonly integrity?: string;

Usually, SHA512 sum of the tarball preceded by sha512-

property shasum

readonly shasum: string;

SHA1 sum of the tarball

property tarball

readonly tarball: string;

Tarball URL

property unpackedSize

readonly unpackedSize?: number;

Total size in bytes of the unpacked files in the tarball

interface DistTags

interface DistTags {}

DistTags maps distribution tags to version numbers.

property latest

readonly latest: string;

Latest version number

index signature

readonly [key: string]: string;

Mapping of distribution tags to version numbers

interface DownloadsPerDay

interface DownloadsPerDay {}

DownloadsPerDay lists the number of downloads in a given day.

property day

readonly day: string;

Day date

property downloads

readonly downloads: number;

Total number of downloads in the day

interface GitRepository

interface GitRepository {}

GitRepository represents a git repository hosting the source code of a package.
See Also
- Repository

property directory

readonly directory?: string;

Specific directory in the repository (for example, a directory in a monorepo)

property type

readonly type: 'git';

Repository type, always git

property url

readonly url: string;

Repository URL

interface NpmOperationalInternal

interface NpmOperationalInternal {}

property host

readonly host: string;

property tmp

readonly tmp: string;

interface PackageDownloads

interface PackageDownloads extends RegistryDownloads {}

PackageDownloads lists the number of downloads for a package in a given time period.
See Also
- RegistryDownloads
- https://github.com/npm/registry/blob/master/docs/download-counts.md#point-values

property package

readonly package: string;

Package name

interface PackageFlags

interface PackageFlags {}

PackageFlags contains flag attributes categorizing the package.

property insecure

readonly insecure?: boolean;

If true, package is insecure or has vulnerable dependencies

property unstable

readonly unstable?: boolean;

If true, package version is <1.0.0

interface PackageJSON

interface PackageJSON {}

PackageJSON contains the package metadata usually found in package.json files.
Remarks
For some packages, especially legacy ones, the properties may be mistyped due to incorrect data present on the registry.
See Also
- https://docs.npmjs.com/cli/v6/configuring-npm/package-json

property author

readonly author?: Person;

Author of the package
See Also
- Person

property bin

readonly bin?: string | Record<string, string>;

Executable files

property browser

readonly browser?: string;

Main file (Browser)

property bugs

readonly bugs?: BugTracker;

Bug tracker
See Also
- BugTracker

property bundledDependencies

readonly bundledDependencies?: string[];

Bundled dependencies (alias)

property bundleDependencies

readonly bundleDependencies?: string[];

Bundled dependencies

property config

readonly config?: Record<string, string>;

npm config

property contributors

readonly contributors?: Person[];

Contributors to the package
See Also
- Person

property cpu

readonly cpu?: string[];

CPU compatibility

property dependencies

readonly dependencies?: Record<string, string>;

Runtime dependencies

property deprecated

readonly deprecated?: string;

Deprecation message

property description

readonly description?: string;

Package description

property devDependencies

readonly devDependencies?: Record<string, string>;

Development dependencies

property directories

readonly directories?: Record<string, string>;

Directories describing the package's structure

property engines

readonly engines?: Record<string, string>;

Node compatibility

property exports

readonly exports?: string | Record<string, unknown>;

Export map
See Also
- https://nodejs.org/api/packages.html#packages_subpath_exports

property files

readonly files?: string[];

File patterns included in the package

property homepage

readonly homepage?: string;

Homepage URL

property keywords

readonly keywords?: string[];

Keywords describing the package

property license

readonly license?: string;

SPDX license identifier

property licenseText

readonly licenseText?: string;

Text of the license

property main

readonly main?: string;

Main file (Node)

property maintainers

readonly maintainers?: Person[];

Maintainers of the package
See Also
- Person

property man

readonly man?: string | string[];

Man pages

property module

readonly module?: string;

Main file (Modules)

property name

readonly name: string;

Package name

property optionalDependencies

readonly optionalDependencies?: Record<string, string>;

Optional dependencies

property os

readonly os?: string[];

OS compatibility

property peerDependencies

readonly peerDependencies?: Record<string, string>;

Peer dependencies

property private

readonly private?: boolean;

Prevent publishing

property publishConfig

readonly publishConfig?: Record<string, string>;

Publishing configuration

property readme

readonly readme?: string;

README contents

property readmeFilename

readonly readmeFilename?: string;

Name of the README file

property repository

readonly repository?: string | Repository;

Repository containing the package's source
See Also
- Repository

property scripts

readonly scripts?: Record<string, string>;

npm scripts

property source

readonly source?: string;

Main source file

property types

readonly types?: string;

Type declarations file

property typings

readonly typings?: string;

Type declarations file (alias)

property version

readonly version: string;

Package version number

index signature

readonly [key: string]: unknown;

Other fields

interface PackageLinks

interface PackageLinks {}

PackageLinks contains a collection of links of pages associated to the package.

property bugs

readonly bugs?: string;

property homepage

readonly homepage?: string;

property npm

readonly npm?: string;

property repository

readonly repository?: string;

index signature

readonly [key: string]: string | undefined;

interface PackageManifest

interface PackageManifest extends RawPackageManifest {}

PackageManifest represents the manifest describing a specific version of a package.
Remarks
For some packages, especially legacy ones, the properties may be mistyped due to incorrect data present on the registry.
See Also
- RawPackageManifest

property createdAt

readonly createdAt: string;

Publishing timestamp

property definitelyTypedName

readonly definitelyTypedName?: string;

Name of the corresponding DefinitelyTyped package, if any

property gitRepository

readonly gitRepository?: GitRepository;

Normalized git repository

property id

readonly id: string;

Package version ID (for example, foo@1.0.0 or @bar/baz@1.0.0)

property license

readonly license?: string;

Normalized license

property publisher

readonly publisher: Person;

User who published this version of the package
See Also
- Person

property untypedName

readonly untypedName?: string;

Name of the corresponding untyped package (w.r.t. DefinitelyTyped)

interface PackageSearchResult

interface PackageSearchResult {}

PackageSearchResult contains abbreviated package metadata returned by searching the registry for packages.
See Also
- Person
- PackageLinks

property author

readonly author?: Person;

Package author
See Also
- Person

property date

readonly date: string;

Publishing timestamp for the latest version

property description

readonly description?: string;

Package description

property keywords

readonly keywords?: string[];

Keywords describing the package

property links

readonly links: PackageLinks;

Links for pages associated to the package
See Also
- PackageLinks

property maintainers

readonly maintainers?: Person[];

Package maintainers
See Also
- Person

property name

readonly name: string;

Package name

property publisher

readonly publisher: Person;

Package publisher
See Also
- Person

property scope

readonly scope: string;

Package scope; either unscoped or the package's scope

property version

readonly version: string;

Latest package version number

interface Packument

interface Packument extends RawPackument {}

Packument represents a packument (package document) containing all the data about a package.
Remarks
For some packages, especially legacy ones, the properties may be mistyped due to incorrect data present on the registry.
See Also
- RawPackument

property distTags

readonly distTags: DistTags;

Mapping of distribution tags to version numbers (alias to dist-tags)
See Also
- DistTags

property gitRepository

readonly gitRepository?: GitRepository;

Normalized git repository

property id

readonly id: string;

Unique package name (for example, foo or @bar/baz; alias to _id)

property license

readonly license?: string;

Normalized license

property versionsToTimestamps

readonly versionsToTimestamps: Record<string, string>;

Mapping of version numbers to publishing timestamps without the created or modified properties present in the time property
See Also
- VersionsToTimestamps

interface Person

interface Person {}

Person represents a person associated to a package.

property email

readonly email?: string;

property name

readonly name?: string;

property url

readonly url?: string;

property username

readonly username?: string;

interface RawAbbreviatedPackument

interface RawAbbreviatedPackument {}

RawAbbreviatedPackument represents an abbreviated packument (package document), as returned from the registry, containing only the metadata necessary to install a package.
See Also
- https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md#abbreviated-metadata-format

property 'dist-tags'

readonly 'dist-tags': DistTags;

Mapping of distribution tags to version numbers
See Also
- DistTags

property modified

readonly modified: string;

Timestamp of when the package was last modified in ISO 8601 format (for example, 2021-11-23T19:12:24.006Z)

property name

readonly name: string;

Package name

property versions

readonly versions: Record<
    string,
    Pick<
        RawPackageManifest,
        | 'name'
        | 'version'
        | 'dist'
        | 'deprecated'
        | 'dependencies'
        | 'optionalDependencies'
        | 'devDependencies'
        | 'bundleDependencies'
        | 'peerDependencies'
        | 'bin'
        | 'directories'
        | 'engines'
        | '_hasShrinkwrap'
    >
>;

Mapping of version numbers to package manifests
See Also
- RawPackageManifest

interface RawPackageManifest

interface RawPackageManifest extends PackageJSON {}

RawPackageManifest represents the manifest, as returned by the registry, describing a specific version of a package.
Remarks
For some packages, especially legacy ones, the properties may be mistyped due to incorrect data present on the registry.
See Also

property dist

readonly dist: DistInfo;

Distribution data from the registry
See Also
- DistInfo

property gitHead

readonly gitHead?: string;

Commit hash corresponding to the published version

property name

readonly name: string;

Package name

property version

readonly version: string;

Package version number

interface RawPackument

interface RawPackument extends HoistedPackageJSON {}

RawPackument represents a packument (package document), as returned from the registry, containing all the data about a package .
Remarks
For some packages, especially legacy ones, the properties may be mistyped due to incorrect data present on the registry.
See Also

property 'dist-tags'

readonly 'dist-tags': DistTags;

Mapping of distribution tags to version numbers
See Also
- DistTags

property name

readonly name: string;

Package name

property time

readonly time: VersionsToTimestamps;

Mapping of version numbers to publishing timestamps
See Also
- VersionsToTimestamps

property users

readonly users?: Record<string, boolean>;

Names of the npm users who starred the package

property versions

readonly versions: Record<string, RawPackageManifest>;

Mapping of version numbers to package manifests
See Also
- RawPackageManifest

interface RegistryDownloads

interface RegistryDownloads {}

RegistryDownloads lists the number of downloads for the registry in a given time period.
See Also
- https://github.com/npm/registry/blob/master/docs/download-counts.md#point-values

property downloads

readonly downloads: number;

Total number of downloads

property end

readonly end: string;

Date of the last day (inclusive)

property start

readonly start: string;

Date of the first day (inclusive)

interface RegistryMetadata

interface RegistryMetadata {}

RegistryMetadata contains information about the registry itself.
See Also

property committed_update_seq

readonly committed_update_seq: number;

property compact_running

readonly compact_running: boolean;

property compacted_seq

readonly compacted_seq: number;

property data_size

readonly data_size: number;

property db_name

readonly db_name: string;

Database name, usually registry

property disk_format_version

readonly disk_format_version: number;

property disk_size

readonly disk_size: number;

property doc_count

readonly doc_count: number;

property doc_del_count

readonly doc_del_count: number;

property instance_start_time

readonly instance_start_time: string;

property other

readonly other: RegistryMetadataOther;

property purge_seq

readonly purge_seq: number;

property sizes

readonly sizes: RegistryMetadataSizes;

property update_seq

readonly update_seq: number;

property uuid

readonly uuid: string;

interface RegistryMetadataOther

interface RegistryMetadataOther {}

property data_size

readonly data_size: number;

interface RegistryMetadataSizes

interface RegistryMetadataSizes {}

property active

readonly active: number;

property external

readonly external: number;

property file

readonly file: number;

interface Repository

interface Repository {}

Repository represents a remote repository hosting the source code of a package.
See Also
- https://docs.npmjs.com/cli/v6/configuring-npm/package-json#repository.

property directory

readonly directory?: string;

Specific directory in the repository containing the package (for example, a directory in a monorepo)

property type

readonly type?: string;

Repository type (for example, git)

property url

readonly url: string;

Repository's URL

interface SearchCriteria

interface SearchCriteria {}

SearchCriteria represents the available search criteria.
See Also
- https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#get-v1search

property from

readonly from?: number;

Return results from this offset

property maintenance

readonly maintenance?: number;

Package maintenance influence on results (from 0.0 to 1.0)

property popularity

readonly popularity?: number;

Package popularity influence on results (from 0.0 to 1.0)

property quality

readonly quality?: number;

Package quality influence on results (from 0.0 to 1.0)

property size

readonly size?: number;

Number of results to return (from 0 to 250; default: 20 on the npm registry)

property text

readonly text?: string;

Query text
Remarks
The following special text attributes can be used to refine results:
- author:<name>: show packages from the given author (for example, author:someone)
- maintainer:<name>: show packages with the given maintainer (for example, maintainer:someone)
- keywords:<keyword list>: show packages matching the given keyword(s); separators ,, + and ,- mean respectively OR, AND and NOT (for example, use keywords:foo,bar+baz,-quux to include keywords foo or bar and baz but not quux)
- not:unstable: exclude unstable packages (version <1.0.0)
- not:insecure: exclude insecure packages
- is:unstable: include only unstable packages (version <1.0.0)
- is:insecure: include only insecure packages
- boost-exact:<true/false>: boost packages with exact name match (default: true)

interface SearchResult

interface SearchResult {}

SearchResult contains the search result for a single package and its search score.
See Also

property flags

readonly flags?: PackageFlags;

Flag attributes for the package
See Also
- PackageFlags

property package

readonly package: PackageSearchResult;

Abbreviated package metadata
See Also
- PackageSearchResult

property score

readonly score: SearchScore;

Final and detailed search score values
See Also
- SearchScore

property searchScore

readonly searchScore: number;

Search score value; may be different from score.final

interface SearchResults

interface SearchResults {}

SearchResults contains the results returned by the registry for a query.
See Also
- SearchResult
- https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md#get-v1search

property objects

readonly objects: SearchResult[];

List of search results
See Also
- SearchResult

property time

readonly time: string;

Date at which the search happened

property total

readonly total: number;

Total number of search results corresponding to a query; may be higher than the number of objects

interface SearchScore

interface SearchScore {}

SearchScore contains the final and detailed search score values.
See Also
- SearchScoreDetail

property detail

readonly detail: SearchScoreDetail;

Detailed search score values
See Also
- SearchScoreDetail

property final

readonly final: number;

Final search score value, computed from the detailed scores

interface SearchScoreDetail

interface SearchScoreDetail {}

SearchScoreDetail contains the search score values for the quality, popularity and maintenance categories.

property maintenance

readonly maintenance: number;

Package maintenance score value

property popularity

readonly popularity: number;

Package popularity score value

property quality

readonly quality: number;

Package quality score value

interface VersionsToTimestamps

interface VersionsToTimestamps {}

VersionsToTimestamps maps version numbers to their publishing timestamps.

property created

readonly created: string;

Package creation time

property modified

readonly modified: string;

Last package update time

index signature

readonly [key: string]: string;

Mapping of version numbers to publishing timestamps

Type Aliases

type DefaultDownloadPeriod

type DefaultDownloadPeriod = 'last-day' | 'last-week' | 'last-month' | 'last-year';

DefaultDownloadPeriod represents the default time periods supported by the npm registry.

type DownloadPeriod

type DownloadPeriod = DefaultDownloadPeriod | Date | DateRange;

DownloadPeriod represents a time period for which downloads should be counted.
Remarks
The following time periods are supported:
- a DefaultDownloadPeriod (for example, last-week)
- a date for a single day (for example, new Date('2020-01-01'))
- a DateRange
See Also

type HoistedPackageJSON

type HoistedPackageJSON = Pick<
    PackageJSON,
    | 'author'
    | 'bugs'
    | 'contributors'
    | 'description'
    | 'homepage'
    | 'keywords'
    | 'license'
    | 'maintainers'
    | 'readme'
    | 'readmeFilename'
    | 'repository'
>;

HoistedPackageJSON contains the data hoisted from the latest package version into the packument.
Remarks
For some packages, especially legacy ones, the properties may be mistyped due to incorrect data present on the registry.
See Also

Package Files (35)

Dependencies (5)

Peer Dependencies (0)

No peer dependencies.

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query-registry

Install

Overview

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Index

Variables

Functions

Classes

Interfaces

Type Aliases

Variables

variable cloudflareRegistry

Remarks

See Also

variable InvalidPackageNameError

See Also

variable InvalidPackageVersionError

variable npmRegistry

See Also

variable npmRegistryDownloadsAPI

See Also

variable npmRegistryMirrors

See Also

variable yarnRegistry

See Also

Functions

function getAbbreviatedPackument

Parameter name

Parameter registry

Parameter mirrors

Parameter cached

Remarks

Example 1

See Also

function getDailyPackageDownloads

Parameter name

Parameter period

Parameter registryDownloadsAPI

Parameter cached

Example 1

Example 2

See Also

function getDailyRegistryDownloads

Parameter period

Parameter registryDownloadsAPI

Parameter cached

Example 1

Example 2

See Also

function getPackageDownloads

Parameter name

Parameter period

Parameter registryDownloadsAPI

Parameter cached

Example 1

Example 2

See Also

function getPackageManifest

Parameter name

Parameter version

Parameter registry

Parameter mirrors

Parameter cached

Example 1

Example 2

See Also

function getPackument

Parameter name

Parameter registry

Parameter mirrors

Parameter cached

Example 1

See Also

function getRawAbbreviatedPackument

Parameter name