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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/graphql/execution
Просмотр файла: execute.d.ts
import type { Maybe } from '../jsutils/Maybe';
import type { ObjMap } from '../jsutils/ObjMap';
import type { Path } from '../jsutils/Path';
import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
import type { GraphQLFormattedError } from '../error/GraphQLError';
import { GraphQLError } from '../error/GraphQLError';
import type {
DocumentNode,
FieldNode,
FragmentDefinitionNode,
OperationDefinitionNode,
} from '../language/ast';
import type {
GraphQLField,
GraphQLFieldResolver,
GraphQLObjectType,
GraphQLResolveInfo,
GraphQLTypeResolver,
} from '../type/definition';
import type { GraphQLSchema } from '../type/schema';
/**
* Terminology
*
* "Definitions" are the generic name for top-level statements in the document.
* Examples of this include:
* 1) Operations (such as a query)
* 2) Fragments
*
* "Operations" are a generic name for requests in the document.
* Examples of this include:
* 1) query,
* 2) mutation
*
* "Selections" are the definitions that can appear legally and at
* single level of the query. These include:
* 1) field references e.g `a`
* 2) fragment "spreads" e.g. `...c`
* 3) inline fragment "spreads" e.g. `...on Type { a }`
*/
/**
* Data that must be available at all points during query execution.
*
* Namely, schema of the type system that is currently executing,
* and the fragments defined in the query document
*/
export interface ExecutionContext {
schema: GraphQLSchema;
fragments: ObjMap<FragmentDefinitionNode>;
rootValue: unknown;
contextValue: unknown;
operation: OperationDefinitionNode;
variableValues: {
[variable: string]: unknown;
};
fieldResolver: GraphQLFieldResolver<any, any>;
typeResolver: GraphQLTypeResolver<any, any>;
subscribeFieldResolver: GraphQLFieldResolver<any, any>;
errors: Array<GraphQLError>;
}
/**
* The result of GraphQL execution.
*
* - `errors` is included when any errors occurred as a non-empty array.
* - `data` is the result of a successful execution of the query.
* - `extensions` is reserved for adding non-standard properties.
*/
export interface ExecutionResult<
TData = ObjMap<unknown>,
TExtensions = ObjMap<unknown>,
> {
errors?: ReadonlyArray<GraphQLError>;
data?: TData | null;
extensions?: TExtensions;
}
export interface FormattedExecutionResult<
TData = ObjMap<unknown>,
TExtensions = ObjMap<unknown>,
> {
errors?: ReadonlyArray<GraphQLFormattedError>;
data?: TData | null;
extensions?: TExtensions;
}
export interface ExecutionArgs {
schema: GraphQLSchema;
document: DocumentNode;
rootValue?: unknown;
contextValue?: unknown;
variableValues?: Maybe<{
readonly [variable: string]: unknown;
}>;
operationName?: Maybe<string>;
fieldResolver?: Maybe<GraphQLFieldResolver<any, any>>;
typeResolver?: Maybe<GraphQLTypeResolver<any, any>>;
subscribeFieldResolver?: Maybe<GraphQLFieldResolver<any, any>>;
/** Additional execution options. */
options?: {
/** Set the maximum number of errors allowed for coercing (defaults to 50). */
maxCoercionErrors?: number;
};
}
/**
* Implements the "Executing requests" section of the GraphQL specification.
*
* Returns either a synchronous ExecutionResult (if all encountered resolvers
* are synchronous), or a Promise of an ExecutionResult that will eventually be
* resolved and never rejected.
*
* If the arguments to this function do not result in a legal execution context,
* a GraphQLError will be thrown immediately explaining the invalid input.
*/
export declare function execute(
args: ExecutionArgs,
): PromiseOrValue<ExecutionResult>;
/**
* Also implements the "Executing requests" section of the GraphQL specification.
* However, it guarantees to complete synchronously (or throw an error) assuming
* that all field resolvers are also synchronous.
*/
export declare function executeSync(args: ExecutionArgs): ExecutionResult;
/**
* Essential assertions before executing to provide developer feedback for
* improper use of the GraphQL library.
*
* @internal
*/
export declare function assertValidExecutionArguments(
schema: GraphQLSchema,
document: DocumentNode,
rawVariableValues: Maybe<{
readonly [variable: string]: unknown;
}>,
): void;
/**
* Constructs a ExecutionContext object from the arguments passed to
* execute, which we will pass throughout the other execution methods.
*
* Throws a GraphQLError if a valid execution context cannot be created.
*
* @internal
*/
export declare function buildExecutionContext(
args: ExecutionArgs,
): ReadonlyArray<GraphQLError> | ExecutionContext;
/**
* @internal
*/
export declare function buildResolveInfo(
exeContext: ExecutionContext,
fieldDef: GraphQLField<unknown, unknown>,
fieldNodes: ReadonlyArray<FieldNode>,
parentType: GraphQLObjectType,
path: Path,
): GraphQLResolveInfo;
/**
* If a resolveType function is not given, then a default resolve behavior is
* used which attempts two strategies:
*
* First, See if the provided value has a `__typename` field defined, if so, use
* that value as name of the resolved type.
*
* Otherwise, test each possible type for the abstract type by calling
* isTypeOf for the object being coerced, returning the first type that matches.
*/
export declare const defaultTypeResolver: GraphQLTypeResolver<unknown, unknown>;
/**
* If a resolve function is not given, then a default resolve behavior is used
* which takes the property of the source object of the same name as the field
* and returns it as the result, or if it's a function, returns the result
* of calling that function while passing along args and context value.
*/
export declare const defaultFieldResolver: GraphQLFieldResolver<
unknown,
unknown
>;
/**
* This method looks up the field on the given type definition.
* It has special casing for the three introspection fields,
* __schema, __type and __typename. __typename is special because
* it can always be queried as a field, even in situations where no
* other fields are allowed, like on a Union. __schema and __type
* could get automatically added to the query type, but that would
* require mutating type definitions, which would cause issues.
*
* @internal
*/
export declare function getFieldDef(
schema: GraphQLSchema,
parentType: GraphQLObjectType,
fieldNode: FieldNode,
): Maybe<GraphQLField<unknown, unknown>>;
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