I have a JSON object in my Controller (Ruby/Rails) but i want to access the Json's Object attributes. How to do that

Question

require 'rubygems'
require 'json'
require 'net/http'
require 'uri'
require 'open-uri'
require 'openssl'

class UsersController < ApplicationController

  def show
    @json_object = JSON.pretty_generate(JSON.parse(open("some link").read))
  end
end

This is my controller file

I have created a view to display the contents of the JSON object.

show.html.erb

<% = @json_object %>

It prints the JSON object but

1) I want to print the JSON object in particular format.

2) i want to save certain JSON values in database.

Answer 1

A JSON object in ruby is simply a Hash or Array of Array s, Hash es, String s and Numeric s.

So, to get to a specific element in your json, you should simply find it as the structure of the JSON suggests:

json_string = '{ "test": { "this": "here" }, "other": 3 }'

@json_object = JSON.parse(json_string)

@json_object['test']['this']
# => "here"

To print it as a JSON object again, you need to format it using JSON.pretty_generate :

JSON.pretty_generate(@json_object['test'])
# => {
# =>   "this": "here"
# => }