graphql-compose/lib/type/json.js

GraphQL schema builder from different data sources with middleware extensions.

'use strict';

var _create = require('babel-runtime/core-js/object/create');

var _create2 = _interopRequireDefault(_create);

var _iterator = require('babel-runtime/core-js/symbol/iterator');

var _iterator2 = _interopRequireDefault(_iterator);

var _symbol = require('babel-runtime/core-js/symbol');

var _symbol2 = _interopRequireDefault(_symbol);

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj; }; // copied from https://github.com/taion/graphql-type-json

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var _graphql = require('graphql');

var _language = require('graphql/language');

function identity(value) {
  return value;
}

function parseLiteral(ast) {
  switch (ast.kind) {
    case _language.Kind.STRING:
    case _language.Kind.BOOLEAN:
      return ast.value;
    case _language.Kind.INT:
    case _language.Kind.FLOAT:
      return parseFloat(ast.value);
    case _language.Kind.OBJECT:
      {
        var _ret = function () {
          var value = (0, _create2.default)(null);
          ast.fields.forEach(function (field) {
            value[field.name.value] = parseLiteral(field.value);
          });

          return {
            v: value
          };
        }();

        if ((typeof _ret === 'undefined' ? 'undefined' : _typeof(_ret)) === "object") return _ret.v;
      }
    case _language.Kind.LIST:
      return ast.values.map(parseLiteral);
    default:
      return null;
  }
}

exports.default = new _graphql.GraphQLScalarType({
  name: 'JSON',
  description: 'The `JSON` scalar type represents JSON values as specified by ' + '[ECMA-404](http://www.ecma-international.org/' + 'publications/files/ECMA-ST/ECMA-404.pdf).',
  serialize: identity,
  parseValue: identity,
  parseLiteral: parseLiteral
});