Migrate example with client side updates from App.net to Mastodon

routes/posts-client-side-updates.coffee

@@ -2,7 +2,7 @@
 #
 # Set client side updates example.
 #
-# Displays the global timeline from App.net with client side updates
+# Displays the global timeline from mastodon.social with client side updates
 # using the same template.
 #
 # Copyright © Aral Balkan. 
@@ -15,36 +15,26 @@ superagent = require 'superagent'
 
 exports.route = (request, response) ->
 
-    superagent.get('https://alpha-api.app.net/stream/0/posts/stream/global')
+    superagent.get('https://mastodon.social/api/v1/timelines/public')
 
         .end (error, globalTimelineResponse) ->
 
             globalTimeline = globalTimelineResponse.body
 
-            # Attach a custom function to the data to count the number of posts
-            globalTimelineResponse.body.numberOfPosts = ->
-                if this.data
-                    return this.data.length
-                else
-                    return 0
-
-            # Ask for the data to be injected into the rendered template
-            # (we’re going to append to it via Ajax calls on the client‐side to render an
-            # expanding timeline of App.net posts.)
-            globalTimeline.__set =
-                injectData: yes
-
             # Handle network and App.net errors gracefully.
             if error
-            	# There was a network error
-            	globalTimeline.errorType = 'Network'
-            	globalTimeline.error = error
+                # There was a network error
+                globalTimeline.errorType = 'Network'
+                globalTimeline.error = error
 
-            else if not globalTimeline.data
+            else if not globalTimeline
 
-            	# There was an App.net error
-            	globalTimeline.errorType = 'App.net'
-            	globalTimeline.error = "(##{globalTimeline.meta.code}) #{globalTimeline.meta.error_message}"
+                # There was an App.net error
+                globalTimeline.errorType = 'App.net'
+                globalTimeline.error = "Could not get the public timeline."
+
+            # Render the response and ask for the data to be injected into the rendered template
+            # (we’re going to append to it via Ajax calls on the client‐side to render an
+            # expanding timeline of App.net posts.)
 
-            # Render the response
-            response.render 'posts-client-side-updates', globalTimeline
+            response.render 'posts-client-side-updates', { data: globalTimeline, __set: { injectData: yes } }