The graphql/execution
module is responsible for the execution phase of
fulfilling a GraphQL request. You can import either from the graphql/execution
module, or from the root graphql
module. For example:
import { execute } from 'graphql'; // ES6
var { execute } = require('graphql'); // CommonJS
Overview
Execution
execute
export function execute(
schema: GraphQLSchema,
documentAST: Document,
rootValue?: mixed,
contextValue?: mixed,
variableValues?: ?{[key: string]: mixed},
operationName?: ?string
): MaybePromise<ExecutionResult>
type MaybePromise<T> = Promise<T> | T;
type ExecutionResult = {
data: ?Object;
errors?: Array<GraphQLError>;
}
Implements the "Evaluating requests" section of the GraphQL specification.
Returns a Promise 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.
ExecutionResult
represents the result of execution. data
is the result of
executing the query, errors
is null if no errors occurred, and is a
non-empty array if an error occurred.