ruby on rails - Return JSON to GET request -

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I need to get JSON on a specific URL in my application.

  • I generates controller API

    • I've added my controller the 'test' method: 

        Answer DIF Exam. Format | Format | Message = {: last_sync = & gt; "Hello!" } Format.json {Render: Jason = & gt; Message} End

    • I have added the route: 

        # api section 'api / test' = & gt; 'API # test'

When I try to get the URL: ... / API / Test me Error:

ActionController :: UnknownFormat

On this line: 

  Answer_to Format |

Why and how can I fix this?

Use simple response_to Render without block: 

  DIF test message = {: last_sync = & gt; "Hello!" } Render: json = & gt; Message ending

response_to block is needed if you want to submit several different formats like html, json etc In action.


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