Jigar Patel Driving fast in a slow lane!

Reddit API with Ruby on Rails

June 26, 2010 / Jigar Patel

This post is old!!! Checkout Reddit’s dev site for detailed API docs.

Reddit is social news site which is quite popular among geeks. Reddit provides an API which allows third party apps to access stories, votes, comments etc. Reddit team is also developing API that allows application to post data to Reddit. Using Reddit’s API in RoR is a two step process.

Step 1: Install JSON gem

Reddit provides response in JSON and XML/RSS formats. I personally prefer JSON over XML because it is easier to read, lighter and faster to transfer than XML. To deserialize JSON data you will need the JSON gem.


Step 2: Begin Hacking

The code sends a request to the API url, deserializes the response using JSON gem and the returns a hash.

Following is a part of such hash. You can easily access the values like a regular hash.

Make sure that:

  • You do not make more than two request per second.
  • Pages are cached for 30 seconds. So do not put unnecessary load on servers by hitting the same page frequently.
  • Reddit provides 25 stories per page and it offers approx. 40 pages. So do not make more than 40 requests in a go.

Visit Reddit Code for more details.