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arangodb/js/node/node_modules/graphql-sync/lib/graphql.js

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2.4 KiB
JavaScript

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.graphql = graphql;
var _source = require('graphql/language/source');
var _parser = require('graphql/language/parser');
var _validate = require('graphql/validation/validate');
var _execute = require('./execution/execute');
/**
* This is the primary entry point function for fulfilling GraphQL operations
* by parsing, validating, and executing a GraphQL document along side a
* GraphQL schema.
*
* More sophisticated GraphQL servers, such as those which persist queries,
* may wish to separate the validation and execution phases to a static time
* tooling step, and a server runtime step.
*
* schema:
* The GraphQL type system to use when validating and executing a query.
* requestString:
* A GraphQL language formatted string representing the requested operation.
* rootValue:
* The value provided as the first argument to resolver functions on the top
* level type (e.g. the query object type).
* variableValues:
* A mapping of variable name to runtime value to use for all variables
* defined in the requestString.
* operationName:
* The name of the operation to use if requestString contains multiple
* possible operations. Can be omitted if requestString contains only
* one operation.
*/
/**
* Copyright (c) 2015, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
function graphql(schema, requestString, rootValue, contextValue, variableValues, operationName) {
try {
var source = new _source.Source(requestString || '', 'GraphQL request');
var documentAST = (0, _parser.parse)(source);
var validationErrors = (0, _validate.validate)(schema, documentAST);
if (validationErrors.length > 0) {
return { errors: validationErrors };
}
return (0, _execute.execute)(schema, documentAST, rootValue, contextValue, variableValues, operationName);
} catch (error) {
return { errors: [error] };
}
}
/**
* The result of a GraphQL parse, validation and execution.
*
* `data` is the result of a successful execution of the query.
* `errors` is included when any errors occurred as a non-empty array.
*/