feat(http): Http service

ionic/net/http.js

@@ -0,0 +1,127 @@
+import * as util from 'ionic/util';
+
+
+/**
+ * The Http class makes it easy to send GET/POST/PUT/DELETE/PATCH requests
+ * and send/receive JSON (or anything else) through a simple API.
+ *
+ * Http uses the `fetch()` API underneath, or a polyfill if it's not natively supported.
+ */
+export class Http {
+
+  /**
+   * The raw fetch() operation.
+   *
+   * Generally, you want to use one of get()/post()/put()/delete() but
+   * this is useful if you want to do something crazy.
+   *
+   * @param url the URL to pass to fetch
+   * @param options the options to configure the fetch
+   * @return es6 promise from the fetch.
+   */
+  static fetch(url, options) {
+    return fetch(url, options).then((response) => {
+      // status "0" to handle local files fetching (e.g. Cordova/Phonegap etc.)
+      if (response.status === 200 || response.status === 0) {
+
+        // We have a good response, let's check the response headers and return
+        // deserialized JSON or return the text from the response.
+        if (response.headers.get('Content-Type') === 'application/json') {
+          return response.json();
+        }
+        return response.text();
+      } else {
+        return Promise.reject(response, new Error(response.statusText));
+      }
+    }).catch((err) => {
+      return Promise.reject(err);
+    });
+  }
+
+  static _method(method, url, data, options, sendsJson) {
+    options = util.defaults(options, {
+      method: method,
+      headers: {
+        'Accept': 'application/json,text/plain,*/*',
+      },
+      body: (typeof data === 'string') ? data : JSON.stringify(data)
+    });
+
+    if(sendsJson) {
+      options.headers['Content-Type'] = 'application/json';
+    }
+
+    return Http.fetch(url, options);
+  }
+
+  /**
+   * Send a GET request to the given URL.
+   *
+   * By default, options sends the `Accept` header as `application/json,text/plain,* / *`,
+   *
+   * @param url the URL to POST to
+   * @param options the options to configure the post with.
+   * @return promise
+   */
+  static get(url, options = {}) {
+    return Http._method('get', url, {}, options);
+  }
+
+  /**
+   * Send a POST request to the given URL.
+   *
+   * By default, options sends the `Accept` header as `application/json,text/plain,* / *`,
+   * and the `Content-Type` header as `application/json`
+   *
+   * @param url the URL to POST to
+   * @param options the options to configure the post with.
+   * @return promise
+   */
+  static post(url, data = {}, options = {}) {
+    return Http._method('post', url, data, options, true);
+  }
+
+  /**
+   * Send a PUT request to the given URL.
+   *
+   * By default, options sends the `Accept` header as `application/json,text/plain,* / *`,
+   * and the `Content-Type` header as `application/json`
+   *
+   * @param url the URL to PUT to
+   * @param data the JSON data to send
+   * @param options the options to configure the post with.
+   * @return promise
+   */
+  static put(url, data = {}, options = {}) {
+    return Http._method('put', url, data, options, true);
+  }
+
+  /**
+   * Send a DELETE request to the given URL.
+   *
+   * By default, options sends the `Accept` header as `application/json,text/plain,* / *`,
+   * and the `Content-Type` header as `application/json`
+   *
+   * @param url the URL to DELETE to
+   * @param data the JSON data to send
+   * @param options the options to configure the post with.
+   * @return promise
+   */
+  static delete(url, data = {}, options = {}) {
+    return Http._method('delete', url, data, options, true);
+  }
+
+  /**
+   * Send a PATH request to the given URL.
+   *
+   * By default, options sends the `Accept` header as `application/json,text/plain,* / *`,
+   * and the `Content-Type` header as `application/json`
+   *
+   * @param url the URL to PATH to
+   * @param options the options to configure the post with.
+   * @return promise
+   */
+  static patch(url, data = {}, options = {}) {
+    return Http._method('patch', url, data, options, true);
+  }
+}