From 2033ef3ad01ae3c83dc0e39adddf682852b17939 Mon Sep 17 00:00:00 2001
From: Nick Uraltsev <nick.uraltsev@gmail.com>
Date: Sat, 17 Sep 2016 12:49:14 -0700
Subject: [PATCH] Adding TypeScript definitions for cancel tokens

---
 axios.d.ts               | 31 +++++++++++++++++++++++++++++++
 test/typescript/axios.ts | 31 +++++++++++++++++++++++++++++--
 2 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/axios.d.ts b/axios.d.ts
index d672175..88d283a 100644
--- a/axios.d.ts
+++ b/axios.d.ts
@@ -41,6 +41,7 @@ export interface AxiosRequestConfig {
   httpAgent?: any;
   httpsAgent?: any;
   proxy?: AxiosProxyConfig;
+  cancelToken?: CancelToken;
 }
 
 export interface AxiosResponse {
@@ -66,6 +67,34 @@ export interface Promise<V> {
 export interface AxiosPromise extends Promise<AxiosResponse> {
 }
 
+export interface CancelStatic {
+  new (message?: string): Cancel;
+}
+
+export interface Cancel {
+  message: string;
+}
+
+export interface Canceler {
+  (message?: string): void;
+}
+
+export interface CancelTokenStatic {
+  new (executor: (cancel: Canceler) => void): CancelToken;
+  source(): CancelTokenSource;
+}
+
+export interface CancelToken {
+  promise: Promise<Cancel>;
+  reason?: Cancel;
+  throwIfRequested(): void;
+}
+
+export interface CancelTokenSource {
+  token: CancelToken;
+  cancel: Canceler;
+}
+
 export interface AxiosInterceptorManager<V> {
   use(onFulfilled: (value: V) => V | Promise<V>, onRejected?: (error: any) => any): number;
   eject(id: number): void;
@@ -90,6 +119,8 @@ export interface AxiosStatic extends AxiosInstance {
   (config: AxiosRequestConfig): AxiosPromise;
   (url: string, config?: AxiosRequestConfig): AxiosPromise;
   create(config?: AxiosRequestConfig): AxiosInstance;
+  Cancel: CancelStatic;
+  CancelToken: CancelTokenStatic; 
   all<T>(values: (T | Promise<T>)[]): Promise<T[]>;
   spread<T, R>(callback: (...args: T[]) => R): (array: T[]) => R;
 }
diff --git a/test/typescript/axios.ts b/test/typescript/axios.ts
index 9f25f1b..39571a9 100644
--- a/test/typescript/axios.ts
+++ b/test/typescript/axios.ts
@@ -1,4 +1,15 @@
-import axios, { AxiosRequestConfig, AxiosResponse, AxiosError, AxiosInstance, AxiosAdapter } from '../../';
+import axios, {
+  AxiosRequestConfig,
+  AxiosResponse,
+  AxiosError,
+  AxiosInstance,
+  AxiosAdapter,
+  Cancel,
+  CancelToken,
+  CancelTokenSource,
+  Canceler
+} from '../../';
+
 import { Promise } from 'es6-promise';
 
 const config: AxiosRequestConfig = {
@@ -30,7 +41,8 @@ const config: AxiosRequestConfig = {
   proxy: {
     host: '127.0.0.1',
     port: 9000
-  }
+  },
+  cancelToken: new axios.CancelToken((cancel: Canceler) => {})
 };
 
 const handleResponse = (response: AxiosResponse) => {
@@ -210,3 +222,18 @@ axios.get('/user')
 axios.get('/user')
   .catch((error: any) => Promise.resolve('foo'))
   .then((value: string) => {});
+
+// Cancellation
+
+const source: CancelTokenSource = axios.CancelToken.source();
+
+axios.get('/user', {
+  cancelToken: source.token
+}).catch((thrown: AxiosError | Cancel) => {
+  if (thrown instanceof axios.Cancel) {
+    const cancel: Cancel = thrown;
+    console.log(cancel.message);
+  }
+});
+
+source.cancel('Operation has been canceled.');