How do I parse JSON with Ruby on Rails

Question

I'm looking for a simple way to parse JSON, extract a value and write it into a database in Rails.

Specifically what I'm looking for, is a way to extract shortUrl from the JSON returned from the bit.ly API:

{
  "errorCode": 0,
  "errorMessage": "",
  "results":
  {
    "https://www.edureka.co/":
    {
       "hash": "e5TEd",
       "shortKeywordUrl": "",
       "shortUrl": "http://bit.ly/1a0p8G",
       "userHash": "1a0p8G"
    }
  },
  "statusCode": "OK"
}

And then take that shortUrl and write it into an ActiveRecord object associated with the long URL.

Answer 1

Hello @kartik,

Use 

hash = JSON.parse string

Rails should automagically load the json module for you, so you don't need to add require 'json'.

Hope it works!!

Thank You!!