@jokio/graphql
Version:
High level, pre-configured, GraphQL Server
76 lines (75 loc) • 2.91 kB
JavaScript
;
// @flow
/**
* Copyright (c) 2017, Dirk-Jan Rutten
* All rights reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
var graphql_1 = require("graphql");
var language_1 = require("graphql/language");
var utils_1 = require("../utils");
/**
* An RFC 3339 compliant date-time scalar.
*
* Input:
* This scalar takes an RFC 3339 date-time string as input and
* parses it to a javascript Date.
*
* Output:
* This scalar serializes javascript Dates,
* RFC 3339 date-time strings and unix timestamps
* to RFC 3339 UTC date-time strings.
*/
var config = {
name: 'DateTime',
description: 'A date-time string at UTC, such as 2007-12-03T10:15:30Z, ' +
'compliant with the `date-time` format outlined in section 5.6 of ' +
'the RFC 3339 profile of the ISO 8601 standard for representation ' +
'of dates and times using the Gregorian calendar.',
serialize: function (value) {
if (value instanceof Date) {
if (utils_1.validateJSDate(value)) {
return utils_1.serializeDateTime(value);
}
throw new TypeError('DateTime cannot represent an invalid Date instance');
}
else if (typeof value === 'string' || value instanceof String) {
if (utils_1.validateDateTime(value)) {
return utils_1.serializeDateTimeString(value);
}
throw new TypeError("DateTime cannot represent an invalid date-time-string " + value + ".");
}
else if (typeof value === 'number' || value instanceof Number) {
if (utils_1.validateUnixTimestamp(value)) {
return utils_1.serializeUnixTimestamp(value);
}
throw new TypeError('DateTime cannot represent an invalid Unix timestamp ' + value);
}
else {
throw new TypeError('DateTime cannot be serialized from a non string, ' +
'non numeric or non Date type ' + JSON.stringify(value));
}
},
parseValue: function (value) {
if (!(typeof value === 'string' || value instanceof String)) {
throw new TypeError("DateTime cannot represent non string type " + JSON.stringify(value));
}
if (utils_1.validateDateTime(value)) {
return utils_1.parseDateTime(value);
}
throw new TypeError("DateTime cannot represent an invalid date-time-string " + value + ".");
},
parseLiteral: function (ast) {
if (ast.kind === language_1.Kind.STRING) {
if (utils_1.validateDateTime(ast.value)) {
return utils_1.parseDateTime(ast.value);
}
}
return null;
}
};
exports.default = new graphql_1.GraphQLScalarType(config);