Adding TypeScript definitions for interceptors

.gitignore

@@ -3,6 +3,7 @@
 .tscache
 .DS_Store
 node_modules/
+typings/
 coverage/
 test/typescript/axios.js*
 sauce_connect.log

.npmignore

@@ -3,6 +3,7 @@
 coverage/
 examples/
 node_modules/
+typings/
 sandbox/
 test/
 bower.json

Gruntfile.js

@@ -13,7 +13,7 @@ module.exports = function(grunt) {
 
     ts: {
       test: {
-        src: ['test/typescript/*.ts'],
+        src: ['typings/index.d.ts', 'test/typescript/*.ts'],
         out: 'test/typescript/out.js',
         options: {
           module: 'commonjs',

axios.d.ts

@@ -1,9 +1,3 @@
-export interface Thenable<V> {
-  then<R>(onFulfilled?: (value: V) => R | Thenable<R>, onRejected?: (reason: any) => R | Thenable<R>): Thenable<R>;
-  then<R>(onFulfilled?: (value: V) => R | Thenable<R>, onRejected?: (reason: any) => void): Thenable<R>;
-  catch<R>(onRejected?: (reason: any) => R | Thenable<R>): Thenable<R>;
-}
-
 export interface AxiosDataTransformer {
   (data: any): any;
 }
@@ -41,23 +35,47 @@ export interface AxiosResponse {
   config: AxiosRequestConfig;
 }
 
+export interface AxiosError extends Error {
+  config: AxiosRequestConfig;
+  code?: string;
+  response?: AxiosResponse;
+}
+
+export interface Promise<V> {
+  then<R1, R2>(onFulfilled: (value: V) => R1 | Promise<R1>, onRejected: (error: any) => R2 | Promise<R2>): Promise<R1 | R2>;
+  then<R>(onFulfilled: (value: V) => R | Promise<R>): Promise<R>;
+  catch<R>(onRejected: (error: any) => R | Promise<R>): Promise<R>;
+}
+
+export interface AxiosPromise extends Promise<AxiosResponse> {
+}
+
+export interface InterceptorManager<V> {
+  use(onFulfilled: (value: V) => V | Promise<V>, onRejected?: (error: any) => any): number;
+  eject(id: number): void;
+}
+
 export interface AxiosInstance {
   defaults: AxiosRequestConfig;
-  request(config: AxiosRequestConfig): Thenable<AxiosResponse>;
-  get(url: string, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
-  delete(url: string, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
-  head(url: string, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
-  post(url: string, data?: any, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
-  put(url: string, data?: any, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
-  patch(url: string, data?: any, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
+  interceptors: {
+    request: InterceptorManager<AxiosRequestConfig>;
+    response: InterceptorManager<AxiosResponse>;
+  };
+  request(config: AxiosRequestConfig): AxiosPromise;
+  get(url: string, config?: AxiosRequestConfig): AxiosPromise;
+  delete(url: string, config?: AxiosRequestConfig): AxiosPromise;
+  head(url: string, config?: AxiosRequestConfig): AxiosPromise;
+  post(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise;
+  put(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise;
+  patch(url: string, data?: any, config?: AxiosRequestConfig): AxiosPromise;
 }
 
 export interface AxiosStatic extends AxiosInstance {
-  (config: AxiosRequestConfig): Thenable<AxiosResponse>;
-  (url: string, config?: AxiosRequestConfig): Thenable<AxiosResponse>;
+  (config: AxiosRequestConfig): AxiosPromise;
+  (url: string, config?: AxiosRequestConfig): AxiosPromise;
   create(config?: AxiosRequestConfig): AxiosInstance;
-  all(iterable: any): Thenable<any>;
-  spread(callback: any): Thenable<any>;
+  all(iterable: any): any;
+  spread(callback: any): any;
 }
 
 declare const Axios: AxiosStatic;

test/typescript/axios.ts

@@ -1,4 +1,5 @@
-import axios from '../../';
+import axios, { AxiosRequestConfig, AxiosResponse, AxiosError, AxiosInstance } from '../../';
+import { Promise } from 'es6-promise';
 
 axios.get('/user?ID=12345')
   .then(function (response) {
@@ -155,3 +156,33 @@ instance.get('/user', {
   .catch(function (response) {
     console.log(response);
   });
+
+const requestInterceptorId: number = axios.interceptors.request.use(
+  (config: AxiosRequestConfig) => config,
+  (error: any) => Promise.reject(error)
+);
+
+axios.interceptors.request.eject(requestInterceptorId);
+
+axios.interceptors.request.use(
+  (config: AxiosRequestConfig) => Promise.resolve(config),
+  (error: any) => Promise.reject(error)
+);
+
+axios.interceptors.request.use((config: AxiosRequestConfig) => config);
+axios.interceptors.request.use((config: AxiosRequestConfig) => Promise.resolve(config));
+
+const responseInterceptorId: number = axios.interceptors.response.use(
+  (response: AxiosResponse) => response,
+  (error: any) => Promise.reject(error)
+);
+
+axios.interceptors.response.eject(responseInterceptorId);
+
+axios.interceptors.response.use(
+  (response: AxiosResponse) => Promise.resolve(response),
+  (error: any) => Promise.reject(error)
+);
+
+axios.interceptors.response.use((response: AxiosResponse) => response);
+axios.interceptors.response.use((response: AxiosResponse) => Promise.resolve(response));

typings.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "es6-promise": "registry:npm/es6-promise#3.0.0+20160723033700"
+  }
+}