Move to new ember-fetch import path

README.md

@@ -21,7 +21,7 @@ ember-fetch requries ember-cli 2.13 or above.
 
 ```js
 import Route from '@ember/routing/route';
-import fetch from 'fetch';
+import fetch from 'ember-fetch';
 
 export default Route.extend({
   model() {
@@ -34,6 +34,11 @@ export default Route.extend({
 
 Available imports:
 ```js
+import fetch, { Headers, Request, Response, AbortController } from 'ember-fetch';
+```
+
+`ember-fetch` still supports importing from the old import path:
+```js
 import fetch, { Headers, Request, Response, AbortController } from 'fetch';
 ```
 
@@ -126,7 +131,7 @@ otherwise you can read the status code to determine the bad response type.
 
 ```js
 import Route from '@ember/routing/route';
-import fetch from 'fetch';
+import fetch from 'ember-fetch';
 import {
   isAbortError,
   isServerErrorResponse,

assets/fetch-legacy-alias.js.t

@@ -0,0 +1,13 @@
+/*
+ * For backwards compatibility, we need to still support consumers importing from the `fetch` path.
+ * In the future, we should release a breaking change which removes this alias and requires consumers
+ * to import from `ember-fetch`. This will ensure there is no confusion around folks thinking they are
+ * importing from the actual `fetch` package.
+ */
+define('fetch', ['exports', 'ember-fetch'], function(exports, emberFetch) {
+  const exportKeys = Object.keys(emberFetch);
+  for (let i = 0; i < exportKeys.length; i++) {
+    const key = exportKeys[i];
+    exports[key] = emberFetch[key];
+  }
+});

fastboot/instance-initializers/setup-fetch.js

@@ -1,4 +1,4 @@
-import { setupFastboot } from 'fetch';
+import { setupFastboot } from 'ember-fetch';
 
 /**
  * To allow relative URLs for Fastboot mode, we need the per request information

index.js

@@ -28,12 +28,15 @@ const Rollup = require('broccoli-rollup');
 const BroccoliDebug = require('broccoli-debug');
 const calculateCacheKeyForTree = require('calculate-cache-key-for-tree');
 const VersionChecker = require('ember-cli-version-checker');
+const { readFileSync } = require('fs');
 
 const debug = BroccoliDebug.buildDebugCallback('ember-fetch');
 
 // Path to the template that contains the shim wrapper around the browser polyfill
 const TEMPLATE_PATH = path.resolve(__dirname + '/assets/browser-fetch.js.t');
 
+const LEGACY_ALIAS_TEMPLATE = readFileSync(path.resolve(__dirname + '/assets/fetch-legacy-alias.js.t'));
+
 /*
  * The `index.js` file is the main entry point for all Ember CLI addons.  The
  * object we export from this file is turned into an Addon class
@@ -222,7 +225,7 @@ module.exports = {
       sourceMapConfig: { enabled: false }
     }), 'after-concat');
 
-    const moduleHeader = this._getModuleHeader(options);
+    const moduleHeader = LEGACY_ALIAS_TEMPLATE + this._getModuleHeader(options);
 
     return debug(
       new Template(polyfillNode, TEMPLATE_PATH, function (content) {
@@ -238,14 +241,14 @@ module.exports = {
   _getModuleHeader({ hasEmberSourceModules, nativePromise }) {
     if (hasEmberSourceModules && nativePromise) {
       return `
-define('fetch', ['exports', 'ember'], function(exports, Ember__module) {
+define('ember-fetch', ['exports', 'ember'], function(exports, Ember__module) {
   'use strict';
   var Ember = 'default' in Ember__module ? Ember__module['default'] : Ember__module;`;
     }
 
     if (hasEmberSourceModules) {
       return `
-define('fetch', ['exports', 'ember', 'rsvp'], function(exports, Ember__module, RSVP__module) {
+define('ember-fetch', ['exports', 'ember', 'rsvp'], function(exports, Ember__module, RSVP__module) {
   'use strict';
   var Ember = 'default' in Ember__module ? Ember__module['default'] : Ember__module;
   var RSVP = 'default' in RSVP__module ? RSVP__module['default'] : RSVP__module;
@@ -254,13 +257,13 @@ define('fetch', ['exports', 'ember', 'rsvp'], function(exports, Ember__module, R
 
     if (nativePromise) {
       return `
-define('fetch', ['exports'], function(exports) {
+define('ember-fetch', ['exports'], function(exports) {
   'use strict';
   var Ember = originalGlobal.Ember;`;
     }
 
     return `
-define('fetch', ['exports'], function(exports) {
+define('ember-fetch', ['exports'], function(exports) {
   'use strict';
   var Ember = originalGlobal.Ember;
   var Promise = Ember.RSVP.Promise;`;

test/fixtures/dummy/app/routes/index.js

@@ -1,6 +1,6 @@
 import Route from '@ember/routing/route';
 import { hash } from 'rsvp';
-import fetch, { Request } from 'fetch';
+import fetch, { Request } from 'ember-fetch';
 import ajax from 'ember-fetch/ajax';
 
 export default Route.extend({

tests/acceptance/error-test.js

@@ -1,6 +1,6 @@
 import { module, test } from 'qunit';
 import Pretender from 'pretender';
-import fetch, { AbortController } from 'fetch';
+import fetch, { AbortController } from 'ember-fetch';
 import {
   isUnauthorizedResponse,
   isForbiddenResponse,

tests/acceptance/root-test.js

@@ -2,7 +2,7 @@ import { module, test } from 'qunit';
 import { setupApplicationTest } from 'ember-qunit';
 import { visit, click, find, currentRouteName } from '@ember/test-helpers';
 import Pretender from 'pretender';
-import fetch from 'fetch';
+import fetch from 'ember-fetch';
 
 var server;
 
@@ -32,6 +32,21 @@ module('Acceptance: Root', function(hooks) {
     assert.equal(this.element.querySelector('.fetch').textContent.trim(), 'Hello World! fetch');
   });
 
+  test('legacy import path still works', async function(assert) {
+    server.get('/omg.json', function() {
+      return [
+        200,
+        { 'Content-Type': 'text/json'},
+        JSON.stringify({ name: 'World' })
+      ];
+    });
+
+    await visit('/legacy-import-path');
+
+    assert.equal(currentRouteName(), 'legacy-import-path');
+    assert.equal(this.element.querySelector('.fetch').textContent.trim(), 'Hello World! fetch');
+  });
+
   test('posting a string', function(assert) {
     server.post('/upload', function(req) {
       assert.equal(req.requestBody, 'foo');

tests/dummy/app/controllers/index.js

@@ -1,6 +1,6 @@
 import Controller from '@ember/controller';
 import { run } from '@ember/runloop';
-import fetch from 'fetch';
+import fetch from 'ember-fetch';
 
 export default Controller.extend({
   actions: {

tests/dummy/app/controllers/legacy-import-path.js

@@ -0,0 +1,23 @@
+import Controller from '@ember/controller';
+import { run } from '@ember/runloop';
+import fetch from 'fetch';
+
+export default Controller.extend({
+  actions: {
+    fetchSlowData() {
+      fetch('/slow-data.json')
+        .then((r) => r.json(), (e) => {
+          run(() => this.set('fetchedSlowDataFailed', true));
+          throw e;
+        })
+        .then((data) => {
+          run(() => this.setProperties({ fetchedSlowData: data, fetchedSlowDataFailed: false }));
+        });
+    },
+
+    badFetch() {
+      fetch('http://localhost:9999') // probably there is nothing listening here :D
+        .then((r) => r.json(), () => run(() => this.set('fetchFailed', true)));
+    }
+  }
+});

tests/dummy/app/router.js

@@ -7,6 +7,7 @@ const Router = EmberRouter.extend({
 });
 
 Router.map(function() {
+  this.route('legacy-import-path')
 });
 
 export default Router;

tests/dummy/app/routes/index.js

@@ -1,6 +1,6 @@
 import Route from '@ember/routing/route';
 import { hash } from 'rsvp';
-import fetch from 'fetch';
+import fetch from 'ember-fetch';
 
 export default Route.extend({
   model: function() {

tests/dummy/app/routes/legacy-import-path.js

@@ -0,0 +1,13 @@
+import Route from '@ember/routing/route';
+import { hash } from 'rsvp';
+import fetch from 'fetch';
+
+export default Route.extend({
+  model: function() {
+    return hash({
+      fetch: fetch('/omg.json').then(function(request) {
+        return request.json();
+      })
+    });
+  }
+});

tests/dummy/app/templates/legacy-import-path.hbs

@@ -0,0 +1,13 @@
+<div class="fetch">
+  Hello {{model.fetch.name}}! fetch
+</div>
+
+<button onclick={{action 'fetchSlowData'}} id="fetch-slow-data-button">Fetch slow data</button>
+{{#if fetchedSlowData}}
+  <span class="fetched-slow-data-span">{{fetchedSlowData.content}}</span>
+{{/if}}
+
+<button onclick={{action 'badFetch'}} id="fetch-broken-data-button">Failing fetch</button>
+{{#if fetchFailed}}
+  <span class="fetched-failed-span">Fetch failed</span>
+{{/if}}

tests/unit/abortcontroller-test.js

@@ -1,5 +1,6 @@
 import { module, test } from 'qunit';
-import { AbortController } from 'fetch';
+import { AbortController } from 'ember-fetch';
+import { AbortController as LegacyAbortController } from 'ember-fetch';
 
 module('AbortController', function() {
   test('signal', function(assert) {
@@ -15,4 +16,18 @@ module('AbortController', function() {
 
     controller.abort();
   })
+
+  test('signal works from legacy import', function(assert) {
+    assert.expect(1);
+    let controller = new LegacyAbortController();
+    let signal = controller.signal;
+
+    let done = assert.async();
+    signal.addEventListener('abort', function() {
+      assert.ok(true);
+      done();
+    });
+
+    controller.abort();
+  })
 });

tests/unit/error-test.js

@@ -1,5 +1,5 @@
 import { module, test } from 'qunit';
-import { Response } from 'fetch';
+import { Response } from 'ember-fetch';
 
 import {
   isUnauthorizedResponse,

tests/unit/headers-test.js

@@ -1,5 +1,6 @@
 import { module, test } from 'qunit';
-import { Headers } from 'fetch';
+import { Headers } from 'ember-etch';
+import { Headers as LegacyImportHeaders } from 'fetch';
 
 module('Headers', function() {
   test('iterator', function(assert) {
@@ -10,4 +11,13 @@ module('Headers', function() {
     assert.ok(headers.keys()[Symbol.iterator]);
     assert.ok(headers.entries()[Symbol.iterator]);
   });
+
+  test('iterator from legacy import', function(assert) {
+    let headers = new LegacyImportHeaders();
+
+    assert.ok(headers[Symbol.iterator]);
+    assert.ok(headers.values()[Symbol.iterator]);
+    assert.ok(headers.keys()[Symbol.iterator]);
+    assert.ok(headers.entries()[Symbol.iterator]);
+  });
 });

tests/unit/utils/determine-body-promise-test.js

@@ -1,5 +1,6 @@
 import { module, test } from 'qunit';
-import { Response } from 'fetch';
+import { Response } from 'ember-fetch';
+import { Response as LegacyImportResponse } from 'fetch';
 import determineBodyPromise from 'ember-fetch/utils/determine-body-promise';
 
 module('Unit | determineBodyPromise', function() {
@@ -14,6 +15,17 @@ module('Unit | determineBodyPromise', function() {
     });
   });
 
+  test('works when imported from legacy import path', function(assert) {
+    assert.expect(1);
+
+    const response = new LegacyImportResponse('{"data": "foo"}', { status: 200 });
+    const bodyPromise = determineBodyPromise(response, {});
+
+    return bodyPromise.then(body => {
+      assert.deepEqual(body, { data: 'foo' });
+    });
+  });
+
   test('determineBodyResponse returns the body even if it is not json', function(assert) {
     assert.expect(1);