@graphql-codegen/typescript-resolvers

constructor

constructor(
    pluginConfig: TypeScriptResolversPluginConfig,
    schema: GraphQLSchema,
    federationMeta: FederationMeta
);

method buildEnumResolverContentBlock

protected buildEnumResolverContentBlock: (
    node: EnumTypeDefinitionNode,
    mappedEnumType: string
) => string;

method buildEnumResolversExplicitMappedValues

protected buildEnumResolversExplicitMappedValues: (
    node: EnumTypeDefinitionNode,
    valuesMapping: { [valueName: string]: string | number }
) => string;

method formatRootResolver

protected formatRootResolver: (
    schemaTypeName: string,
    resolverType: string,
    declarationKind: DeclarationKind
) => string;

method getPunctuation

protected getPunctuation: (_declarationKind: DeclarationKind) => string;

method ListType

ListType: (node: ListTypeNode) => string;

method NamedType

NamedType: (node: NamedTypeNode) => string;

method NonNullType

NonNullType: (node: NonNullTypeNode) => string;

method transformParentGenericType

protected transformParentGenericType: (parentType: string) => string;

method wrapWithListType

protected wrapWithListType: (str: string) => string;

property allowParentTypeOverride

allowParentTypeOverride?: boolean;

• Allow you to override the ParentType generic in each resolver, by avoid enforcing the base type of the generated generic type.

  This will generate ParentType = Type instead of ParentType extends Type = Type in each resolver.

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           allowParentTypeOverride: true
         },
       },
     },
   };
   export default config;

property customResolveInfo

customResolveInfo?: string;

• You can provide your custom GraphQLResolveInfo instead of the default one from graphql-js "graphql#GraphQLResolveInfo"

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           customResolveInfo: './my-types#MyResolveInfo'
         },
       },
     },
   };
   export default config;

property customResolverFn

customResolverFn?: string;

• You can provide your custom ResolveFn instead the default. It has to be a type that uses the generics <TResult, TParent, TContext, TArgs> "(parent: TParent, args: TArgs, context: TContext, info: GraphQLResolveInfo) => Promise | TResult"

  ## Custom Signature

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           customResolverFn: './my-types#MyResolveFn'
         },
       },
     },
   };
   export default config;

  ## With Graphile

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           customResolverFn: './my-types#MyResolveFn'
         },
       },
     },
   };
   export default config;

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       "path/to/file.ts": {
         "plugins": [
             {
                 "add": {
                     "content": "import { GraphileHelpers } from 'graphile-utils/node8plus/fieldHelpers';"
                 }
             },
             "typescript",
             "typescript-resolvers"
         ],
         "config": {
             "customResolverFn": "(\n  parent: TParent,\n  args: TArgs,\n  context: TContext,\n  info: GraphQLResolveInfo & { graphile: GraphileHelpers<TParent> }\n) => Promise<TResult> | TResult;\n"
         }
       }
     }
   };
   export default config;

property directiveResolverMappings

directiveResolverMappings?: Record<string, string>;

• Map the usage of a directive into using a specific resolver.

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           customResolverFn: '../resolver-types.ts#UnauthenticatedResolver',
           directiveResolverMappings: {
             authenticated: '../resolvers-types.ts#AuthenticatedResolver',
           },
         },
       },
     },
   };
   export default config;

property makeResolverTypeCallable

makeResolverTypeCallable?: boolean;

• Set to true in order to allow the Resolver type to be callable

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           makeResolverTypeCallable: true
         },
       },
     },
   };
   export default config;

property noSchemaStitching

noSchemaStitching?: boolean;

• Disables/Enables Schema Stitching support. By default, the resolver signature does not include the support for schema-stitching. Set to false to enable that.

  true

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           noSchemaStitching: false
         },
       },
     },
   };
   export default config;

property optionalInfoArgument

optionalInfoArgument?: boolean;

• Sets info argument of resolver function to be optional field. Useful for testing.

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           optionalInfoArgument: true
         },
       },
     },
   };
   export default config;

property useIndexSignature

useIndexSignature?: boolean;

• Adds an index signature to any generates resolver. false

   import type { CodegenConfig } from '@graphql-codegen/cli';
  
   const config: CodegenConfig = {
     // ...
     generates: {
       'path/to/file.ts': {
         plugins: ['typescript', 'typescript-resolvers'],
         config: {
           useIndexSignature: true
         },
       },
     },
   };
   export default config;

property wrapFieldDefinitions

wrapFieldDefinitions?: boolean;

• Set to true in order to wrap field definitions with FieldWrapper. This is useful to allow return types such as Promises and functions. Needed for compatibility with federation: true when true