@prodigyems/graphql-sequelize/lib/types/dateType.js

GraphQL & Relay for MySQL & Postgres via Sequelize

'use strict';

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

var _graphql = require('graphql');

/**
 * A special custom Scalar type for Dates that converts to a ISO formatted string
 * @param {String} options.name:
 * @param {String} options.description:
 * @param {Date} options.serialize(d)
 * @param {String} parseValue(value)
 * @param {Object} parseLiteral(ast)
 */
exports.default = new _graphql.GraphQLScalarType({
  name: 'Date',
  description: 'A special custom Scalar type for Dates that converts to a ISO formatted string ',
  /**
   * serialize
   * @param  {Date} d Date obj
   * @return {String} Serialised date object
   */
  serialize: function serialize(d) {
    if (!d) {
      return null;
    }

    if (d instanceof Date) {
      return d.toISOString();
    }
    return d;
  },

  /**
   * parseValue
   * @param  {String} value date string
   * @return {Date}   Date object
   */
  parseValue: function parseValue(value) {
    try {
      if (!value) {
        return null;
      }
      return new Date(value);
    } catch (e) {
      return null;
    }
  },
  parseLiteral: function parseLiteral(ast) {
    return new Date(ast.value);
  }
});