Serving up an API

After creating a service for your consumers, you will need to create an API for those prosumers. Building a service is a great challenge.

In the previous exercise we built a client for an existing an API. Now we are on the other side of the equation and we are going to build the serving side.

Exercise

This week we are going to build a JSON service onto our existing simple Rails application.

A user should be able to visit their posts at the following URL:

http://localhost:3000/users/1/posts

Your goal is to add the support for JSON response at the following URL:

http://localhost:3000/users/1/posts.json

Goal

Visiting the path posts.json should return a JSON representation of all the user's posts.

[ 
  { "user": "Ivan", 
    "message": "I have this message that I want to send",
    "posted": "2012-05-07 08:39:04 UTC" },
  { "user": "Ivan", 
    "message": "this is a post to twitter",
    "posted": "2012-05-07 08:32:04 UTC" }
]