How to send raw post data in a Rails functional test?

Question

I\'m looking to send raw post data (e.g. unparamaterized JSON) to one of my controllers for testing:

class LegacyOrderUpdateControllerTest < ActionControl         


        

Answer 1

For those using Rails5+ integration tests, the (undocumented) way to do this is to pass a string in the params argument, so:

post '/path', params: raw_body, headers: { 'Content-Type' => 'application/json' }