ruby - Content-Type "application/json" not required in rails -

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I have an API endpoint in the train, by default if you have a content-type header process in the parameter 

  application / x-www-form-urlencoded   
 Is there a way to take action on json string in the rail by a post request without specifying content type Article?   
 
 
 In your  routes.rb  file you can post a namespace Define the format for the inner path and expectation of this type:  
  Namespace: API, Default: {format :: json} Post 'Example' = & gt; 'Admin # Action' End   
 In this case you will post your Jason Payload on '/api/example.json' and should not define the content-type. You may be able to define it for only one post line, but I have not tested it.

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