Merge branch 'master' into feature-imchannels

README.md

@@ -35,6 +35,7 @@ npm install slackbots
 - `getGroupId(name)` (return: promise) - gets group ID by name,
 - `getUserId(name)` (return: promise) - gets user ID by name,
 - `getChatId(name)` (return: promise) - it returns or opens and returns a direct message channel ID,
+- `postEphemeral(id, user, text, params)` (return: promise) - posts an ephemeral message to channel and user by ID,
 - `postMessage(id, text, params)` (return: promise) - posts a message to channel | group | user by ID,
 - `updateMessage(channelId, timestamp, text, params)` (return: promise) - updates a message in a channel,
 - `postTo(name, message [, params, callback])` (return: promise) - posts a message to channel | group | user by name,

index.js

@@ -264,6 +264,25 @@ class Bot extends EventEmitter {
         }
         return this._api('im.list');
     }
+
+    /**  
+     * Posts an ephemeral message to a channel and user
+     * @param {string} id - channel ID
+     * @param {string} user - user ID
+     * @param {string} text
+     * @param {object} params
+     * @returns {vow.Promise}
+     */
+    postEphemeral(id, user, text, params) {
+        params = extend({
+            text: text,
+            channel: id,
+            user: user,
+            username: this.name
+        }, params || {});
+
+        return this._api('chat.postEphemeral', params);
+    }
 
     /**
      * Posts a message to a channel by ID