TypeScript support

.eslintrc.js

@@ -13,6 +13,16 @@ module.exports = {
     'no-console': ["error", { allow: ['warn'] }]
   },
   overrides: [
+    // TypeScript files
+    {
+      files: ['addon/**/*.ts'],
+      parser: '@typescript-eslint/parser',
+      plugins: ['@typescript-eslint'],
+      rules: {
+        'no-undef': 'off',
+        'no-unused-var': 'off'
+      }
+    },
     // node files
     {
       files: [

README.md

@@ -35,6 +35,21 @@ Available imports:
 import fetch, { Headers, Request, Response, AbortController } from 'fetch';
 ```
 
+### Use with TypeScript
+To use `ember-fetch` with TypeScript or enable editor's type support, You can add `"fetch": ["node_modules/ember-fetch"]` to your `tsconfig.json`.
+
+```json
+{
+  "compilerOptions": {
+    "paths": {
+      "fetch": [
+        "node_modules/ember-fetch"
+      ]
+    }
+  }
+}
+```
+
 ### Use with Ember Data
 To have Ember Data utilize `fetch` instead of jQuery.ajax to make calls to your backend, extend your project's `application` adapter with the `adapter-fetch` mixin.
 
@@ -106,7 +121,8 @@ The way you do import remains same.
 
 ## Q & A
 ### Does it work with pretender?
-Yes, [pretender v2.1](https://github.com/pretenderjs/pretender/tree/v2.1.0) comes with `fetch` support.
+
+* Yes, [pretender v2.1](https://github.com/pretenderjs/pretender/tree/v2.1.0) comes with `fetch` support.
 
 ### Does this replace ic-ajax?
 

addon/ajax.ts

@@ -0,0 +1,14 @@
+
+import fetch from 'fetch';
+
+export default function ajax(
+  input: RequestInfo,
+  init?: RequestInit
+): Promise<Response> {
+  return fetch(input, init).then(response => {
+    if (response.ok) {
+      return response.json();
+    }
+    throw response;
+  })
+}