Switch from form-data to restler, a lot better :thumbs_up:

lib/fetch.js

@@ -1,41 +1,19 @@
-import FormData from 'form-data';
+import restler from 'restler';
 
 export default function fetch(path, data = {}) {
-  const form = new FormData();
-  const keys = Object.keys(data);
-
-  for (let key of keys) {
-    form.append(key, data[key]);
-  }
-
-
   return new Promise((resolve, reject) => {
-    form.getLength((err, length) => {
-      if (err) {
-        return reject(err);
+    const method = Object.keys(data).length ? 'POST' : 'GET';
+    const multipart = method === 'POST' ? true : false;
+
+    restler.request('https://api.telegram.org/bot' + path, {
+      data, method, multipart
+    }).on('complete', response => {
+      try {
+        let json = JSON.parse(response);
+        resolve(json);
+      } catch(e) {
+        reject(e);
       }
-
-      form.submit({
-        protocol: 'https:',
-        host: 'api.telegram.org',
-        path: '/bot' + path,
-        headers: {
-          'Content-Length': length
-        }
-      }, (error, response) => {
-        if (error) {
-          return reject(error);
-        }
-
-        return getBody(response).then(body => {
-          try {
-            let json = JSON.parse(body);
-            resolve(json);
-          } catch(e) {
-            reject(e);
-          }
-        }).catch(reject);
-      });
     });
   });
 }

lib/index.js

@@ -1,4 +1,3 @@
-import 'babel/polyfill';
 import API from './api';
 import webhook from './webhook';
 import poll from './poll';

lib/types/File.js

@@ -0,0 +1,90 @@
+import Base from './Base';
+import mime from 'mime';
+
+const TYPES = ['photo', 'video', 'document', 'audio'];
+
+/**
+ * File class, used to send pictures/movies/audios/documents to chat
+ */
+export default class File extends Base {
+  /**
+   * Create a new file instance
+   * @param  {object} properties File properties, as defined by Telegram API
+   */
+  constructor(properties = {}) {
+    super('sendMessage');
+
+    this.properties = properties;
+    this._keyboard = new Base();
+  }
+
+  /**
+   * Set chat_id of the message
+   * @param  {number} chat
+   * @return {object} returns the message object
+   */
+  to(chat) {
+    this.properties.chat_id = chat;
+    return this;
+  }
+
+  /**
+   * Set file of the message
+   * @param  {ReadableStream} stream File Stream
+   * @param {string} fileType (optional) if the first argument is a
+   *                          file_id string, this option indicates file type
+   * @return {object} returns the message object
+   */
+  file(stream, fileType) {
+    if (typeof stream === 'string') {
+      this.properties[fileType] = stream;
+    }
+
+    let type = mime.lookup(stream.path).split('/')[0];
+    if (type === 'image') {
+      type = 'photo';
+    }
+
+    if (TYPES.indexOf(type) === -1) {
+      type = 'document';
+    }
+
+    this.properties[type] = stream;
+
+    return this;
+  }
+
+  /**
+   * Set caption for photos
+   * @param  {string} text caption's text
+   * @return {object} returns the message object
+   */
+  caption(text) {
+    this.properties.caption = text;
+    return this;
+  }
+
+  /**
+   * Set reply_to_message_id of the message
+   * @param  {number} id message_id of the message to reply to
+   * @return {object} returns the message object
+   */
+  reply(id) {
+    this.properties.reply_to_message_id = id;
+    return this;
+  }
+
+  /**
+   * Sets keyboard of the message
+   * The value of reply_markup is set to the sanitized keyboard properties
+   * i.e. reply_markup = JSON.stringify(kb.getProperties())
+   * @param  {object} kb A Keyboard instance
+   * @return {object} returns the message object
+   */
+  keyboard(kb) {
+    this._keyboard = kb;
+    return this;
+  }
+
+  // This class inherits Base's send method
+}