GitHub and Twitter integration

I used GitHub webhook to integrate with Twitter, and created a below service.

When I commit a blog post with some specific commit message, then the blog post is automatically tweeted.

For example, when I push the commit having the following message,

POST: GitHub and Twitter integration

then a tweet is automatically posted like this.

I created this small service by using Sinatra, Thin, Nginx.

I want to introduce the structure next time.