Add too many requests error

Author: arop

README.md

@@ -42,6 +42,7 @@ Below is the list of all available errors:
 | GoneError               | 410  | Gone                  |
 | NotFoundError           | 404  | Not Found             |
 | ServiceUnavailableError | 503  | Service Unavailable   |
+| TooManyRequestsError    | 429  | Too Many Requests     |
 | UnauthorizedError       | 401  | Unauthorized          |
 | ValidationFailedError   | 400  | Validation Failed     |
 

src/errors/too-many-requests-error.js

@@ -0,0 +1,21 @@
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+const HttpError = require('./http-error');
+
+/**
+ * Export "Too Many Requests" error.
+ */
+
+module.exports = class TooManyRequestsError extends HttpError {
+  /**
+   * Constructor.
+   */
+
+  constructor() {
+    super(429, ...arguments);
+  }
+};

src/index.js

@@ -13,6 +13,7 @@ module.exports = {
   HttpError: require('./errors/http-error'),
   NotFoundError: require('./errors/not-found-error'),
   ServiceUnavailableError: require('./errors/service-unavailable-error'),
+  TooManyRequestsError: require('./errors/too-many-requests-error'),
   UnauthorizedError: require('./errors/unauthorized-error'),
   ValidationFailedError: require('./errors/validation-failed-error')
 };

test/errors/too-many-requests-error_test.js

@@ -0,0 +1,16 @@
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+const { TooManyRequestsError } = require('../../src');
+const test = require('../utils/test-http-error');
+
+/**
+ * Test "TooManyRequestsError" error.
+ */
+
+describe('TooManyRequestsError', () => {
+  test(TooManyRequestsError, 429, 'Too Many Requests');
+});

types/errors/too-many-requests-error.d.ts

@@ -0,0 +1,5 @@
+import { HttpError } from './http-error';
+export declare class TooManyRequestsError extends HttpError {
+    constructor(message?: string, props?: object);
+    constructor(props?: object);
+}

types/index.d.ts

@@ -6,5 +6,6 @@ export * from './errors/gone-error';
 export * from './errors/http-error';
 export * from './errors/not-found-error';
 export * from './errors/service-unavailable-error';
+export * from './errors/too-many-requests-error';
 export * from './errors/unauthorized-error';
 export * from './errors/validation-failed-error';