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forked from ardatan/graphql-tools
/
Interfaces.ts
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/
Interfaces.ts
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import {
GraphQLSchema,
GraphQLField,
ExecutionResult,
GraphQLInputType,
GraphQLType,
GraphQLNamedType,
GraphQLFieldResolver,
GraphQLResolveInfo,
GraphQLIsTypeOfFn,
GraphQLTypeResolver,
GraphQLScalarType,
DocumentNode,
GraphQLEnumValue,
GraphQLEnumType,
GraphQLUnionType,
GraphQLArgument,
GraphQLInputField,
GraphQLInputObjectType,
GraphQLInterfaceType,
GraphQLObjectType,
InlineFragmentNode,
GraphQLOutputType,
} from 'graphql';
import { SchemaDirectiveVisitor } from './utils/SchemaDirectiveVisitor';
import { SchemaVisitor } from './utils/SchemaVisitor';
import { ApolloLink } from 'apollo-link';
/* TODO: Add documentation */
export type UnitOrList<Type> = Type | Array<Type>;
export interface IResolverValidationOptions {
requireResolversForArgs?: boolean;
requireResolversForNonScalar?: boolean;
requireResolversForAllFields?: boolean;
requireResolversForResolveType?: boolean;
allowResolversNotInSchema?: boolean;
}
export interface IAddResolveFunctionsToSchemaOptions {
schema: GraphQLSchema;
resolvers: IResolvers;
defaultFieldResolver?: IFieldResolver<any, any>;
resolverValidationOptions?: IResolverValidationOptions;
inheritResolversFromInterfaces?: boolean;
}
export interface IResolverOptions<TSource = any, TContext = any, TArgs = any> {
fragment?: string;
resolve?: IFieldResolver<TSource, TContext, TArgs>;
subscribe?: IFieldResolver<TSource, TContext, TArgs>;
__resolveType?: GraphQLTypeResolver<TSource, TContext>;
__isTypeOf?: GraphQLIsTypeOfFn<TSource, TContext>;
}
export type Transform = {
transformSchema?: (schema: GraphQLSchema) => GraphQLSchema;
transformRequest?: (originalRequest: Request) => Request;
transformResult?: (result: Result) => Result;
};
export interface IGraphQLToolsResolveInfo extends GraphQLResolveInfo {
mergeInfo?: MergeInfo;
}
export type Fetcher = (operation: IFetcherOperation) => Promise<ExecutionResult>;
export interface IFetcherOperation {
query: DocumentNode;
operationName?: string;
variables?: { [key: string]: any };
context?: { [key: string]: any };
}
export type Dispatcher = (context: any) => ApolloLink | Fetcher;
export type SubschemaConfig = {
schema: GraphQLSchemaWithTransforms;
rootValue?: Record<string, any>;
executor?: Delegator;
subscriber?: Delegator;
link?: ApolloLink;
fetcher?: Fetcher;
dispatcher?: Dispatcher;
transforms?: Array<Transform>;
mergedTypeConfigs?: Record<string, MergedTypeConfig>;
};
export type MergedTypeConfig = {
fragment?: string;
mergedTypeResolver: MergedTypeResolver;
};
export type MergedTypeResolver = (
subschema: GraphQLSchema | SubschemaConfig,
originalResult: any,
context: Record<string, any>,
info: IGraphQLToolsResolveInfo,
) => any;
export type GraphQLSchemaWithTransforms = GraphQLSchema & { transforms?: Array<Transform> };
export type SchemaLikeObject =
SubschemaConfig |
GraphQLSchema |
string |
DocumentNode |
Array<GraphQLNamedType>;
export function isSubschemaConfig(value: SchemaLikeObject): value is SubschemaConfig {
return !!(value as SubschemaConfig).schema;
}
export interface IDelegateToSchemaOptions<TContext = { [key: string]: any }> {
schema: GraphQLSchema | SubschemaConfig;
operation: Operation;
fieldName: string;
returnType?: GraphQLOutputType;
args?: { [key: string]: any };
context?: TContext;
info: IGraphQLToolsResolveInfo;
rootValue?: Record<string, any>;
transforms?: Array<Transform>;
skipValidation?: boolean;
}
export interface ICreateDelegatingRequestOptions {
schema: GraphQLSchema | SubschemaConfig;
info: IGraphQLToolsResolveInfo;
operation: Operation;
fieldName: string;
args?: { [key: string]: any };
transforms?: Array<Transform>;
skipValidation?: boolean;
}
export interface IDelegateRequestOptions<TContext = { [key: string]: any }> {
request: Request;
schema: GraphQLSchema | SubschemaConfig;
rootValue?: Record<string, any>;
info: IGraphQLToolsResolveInfo;
operation: Operation;
fieldName: string;
returnType?: GraphQLOutputType;
context?: TContext;
transforms?: Array<Transform>;
}
export type Delegator = ({ document, context, variables }: {
document: DocumentNode;
context?: { [key: string]: any };
variables?: { [key: string]: any };
}) => any;
export type MergeInfo = {
delegate: (
type: 'query' | 'mutation' | 'subscription',
fieldName: string,
args: { [key: string]: any },
context: { [key: string]: any },
info: GraphQLResolveInfo,
transforms?: Array<Transform>,
) => any;
fragments: Array<{
field: string;
fragment: string;
}>;
replacementFragments: ReplacementFragmentMapping,
mergedTypes: MergedTypeMapping,
delegateToSchema<TContext>(options: IDelegateToSchemaOptions<TContext>): any;
};
export type ReplacementFragmentMapping = {
[typeName: string]: { [fieldName: string]: InlineFragmentNode };
};
export type MergedTypeMapping = Record<string, {
fragment: InlineFragmentNode,
subschemas: Array<SubschemaConfig>,
}>;
export type IFieldResolver<TSource, TContext, TArgs = Record<string, any>> = (
source: TSource,
args: TArgs,
context: TContext,
info: GraphQLResolveInfo & { mergeInfo: MergeInfo },
) => any;
export type ITypedef = (() => ITypedef[]) | string | DocumentNode;
export type ITypeDefinitions = ITypedef | ITypedef[];
export type IResolverObject<TSource = any, TContext = any, TArgs = any> = {
[key: string]:
| IFieldResolver<TSource, TContext, TArgs>
| IResolverOptions<TSource, TContext>
| IResolverObject<TSource, TContext>;
};
export type IEnumResolver = { [key: string]: string | number };
export interface IResolvers<TSource = any, TContext = any> {
[key: string]:
| (() => any)
| IResolverObject<TSource, TContext>
| IResolverOptions<TSource, TContext>
| GraphQLScalarType
| IEnumResolver;
}
export type IResolversParameter =
| Array<IResolvers | ((mergeInfo: MergeInfo) => IResolvers)>
| IResolvers
| ((mergeInfo: MergeInfo) => IResolvers);
export interface ILogger {
log: (message: string | Error) => void;
}
export interface IConnectorCls<TContext = any> {
new (context?: TContext): any;
}
export type IConnectorFn<TContext = any> = (context?: TContext) => any;
export type IConnector<TContext = any> =
| IConnectorCls<TContext>
| IConnectorFn<TContext>;
export type IConnectors<TContext = any> = {
[key: string]: IConnector<TContext>;
};
export interface IExecutableSchemaDefinition<TContext = any> {
typeDefs: ITypeDefinitions;
resolvers?: IResolvers<any, TContext> | Array<IResolvers<any, TContext>>;
connectors?: IConnectors<TContext>;
logger?: ILogger;
allowUndefinedInResolve?: boolean;
resolverValidationOptions?: IResolverValidationOptions;
directiveResolvers?: IDirectiveResolvers<any, TContext>;
schemaDirectives?: { [name: string]: typeof SchemaDirectiveVisitor };
parseOptions?: GraphQLParseOptions;
inheritResolversFromInterfaces?: boolean;
}
export type IFieldIteratorFn = (
fieldDef: GraphQLField<any, any>,
typeName: string,
fieldName: string,
) => void;
export type IDefaultValueIteratorFn = (
type: GraphQLInputType,
value: any,
) => void;
export type NextResolverFn = () => Promise<any>;
export type DirectiveResolverFn<TSource = any, TContext = any> = (
next: NextResolverFn,
source: TSource,
args: { [argName: string]: any },
context: TContext,
info: GraphQLResolveInfo,
) => any;
export interface IDirectiveResolvers<TSource = any, TContext = any> {
[directiveName: string]: DirectiveResolverFn<TSource, TContext>;
}
/* XXX on mocks, args are optional, Not sure if a bug. */
export type IMockFn = GraphQLFieldResolver<any, any>;
export type IMocks = { [key: string]: IMockFn };
export type IMockTypeFn = (
type: GraphQLType,
typeName?: string,
fieldName?: string,
) => GraphQLFieldResolver<any, any>;
export interface IMockOptions {
schema: GraphQLSchema;
mocks?: IMocks;
preserveResolvers?: boolean;
}
export interface IMockServer {
query: (
query: string,
vars?: { [key: string]: any },
) => Promise<ExecutionResult>;
}
export type OnTypeConflict = (
left: GraphQLNamedType,
right: GraphQLNamedType,
info?: {
left: {
schema?: GraphQLSchema | SubschemaConfig;
};
right: {
schema?: GraphQLSchema | SubschemaConfig;
};
},
) => GraphQLNamedType;
export type Operation = 'query' | 'mutation' | 'subscription';
export type Request = {
document: DocumentNode;
variables: Record<string, any>;
extensions?: Record<string, any>;
};
export type Result = ExecutionResult & {
extensions?: Record<string, any>;
};
export type ResolveType<T extends GraphQLType> = (type: T) => T;
export type GraphQLParseOptions = {
noLocation?: boolean;
allowLegacySDLEmptyFields?: boolean;
allowLegacySDLImplementsInterfaces?: boolean;
experimentalFragmentVariables?: boolean;
};
export type IndexedObject<V> = { [key: string]: V } | ReadonlyArray<V>;
export type VisitableSchemaType =
GraphQLSchema
| GraphQLObjectType
| GraphQLInterfaceType
| GraphQLInputObjectType
| GraphQLNamedType
| GraphQLScalarType
| GraphQLField<any, any>
| GraphQLInputField
| GraphQLArgument
| GraphQLUnionType
| GraphQLEnumType
| GraphQLEnumValue;
export type VisitorSelector = (
type: VisitableSchemaType,
methodName: string,
) => Array<SchemaVisitor | SchemaVisitorMap>;
export enum VisitSchemaKind {
TYPE = 'VisitSchemaKind.TYPE',
SCALAR_TYPE = 'VisitSchemaKind.SCALAR_TYPE',
ENUM_TYPE = 'VisitSchemaKind.ENUM_TYPE',
COMPOSITE_TYPE = 'VisitSchemaKind.COMPOSITE_TYPE',
OBJECT_TYPE = 'VisitSchemaKind.OBJECT_TYPE',
INPUT_OBJECT_TYPE = 'VisitSchemaKind.INPUT_OBJECT_TYPE',
ABSTRACT_TYPE = 'VisitSchemaKind.ABSTRACT_TYPE',
UNION_TYPE = 'VisitSchemaKind.UNION_TYPE',
INTERFACE_TYPE = 'VisitSchemaKind.INTERFACE_TYPE',
ROOT_OBJECT = 'VisitSchemaKind.ROOT_OBJECT',
QUERY = 'VisitSchemaKind.QUERY',
MUTATION = 'VisitSchemaKind.MUTATION',
SUBSCRIPTION = 'VisitSchemaKind.SUBSCRIPTION',
}
export type SchemaVisitorMap = { [key in VisitSchemaKind]?: TypeVisitor };
export type TypeVisitor = (
type: GraphQLType,
schema: GraphQLSchema,
) => GraphQLNamedType | null | undefined;