Rails Json XML Action

JSON

render :json => object

Convert object to json style

Example

class ItemsController < ApplicationController
   def index
      snsd = {'name' =>'Yoona','age' => 24}

      render :json => snsd
   end
end

Access http://localhost:3000/items/index, you can see json output

XML

render :xml => object

Convert object to xml

class ItemsController < ApplicationController
   def index
      snsd = {'name' =>'Yoona','age' => 24}

      render :xml => snsd
   end
end

respond_to

General output is HTML but, if set implicitly, we want to output json or xml.
How to do it?

def index
   respond_to do |format|
      format.html
      format.json {render :json => object}
      format.xml {render :xml => object}
   end
end

Example

class ItemsController < ApplicationController
   def index
      @snsd = {'name' => 'Yoona', 'age' => 24}

      respond_to do |format|
         format.html
         format.json {render :json => @snsd}
         format.xml {render :xml => @snsd}
      end
   end
end

Template app/views/items/index.html.erb

<p>
Name : <%= @snsd&#91;"name"&#93; %><br />
Age : <%= @snsd&#91;"age"&#93; %>
</p>

http://locahost:3000/items/index
http://localhost:3000/items/index.json
http://localhost:3000/items/index.xml