Retrofit2 error java.io.EOFException: End of input at line 1 column 1

Question

I called PATCH web service using Retrofit2 but onResponse is not called and the onFailure is called Despite of

Answer 1

just return void instead, if the body is empty

@PATCH("alerts/{alert_id}/accept") Call accept_invited_alerts(@Header("X-Api-Token") String api_token, @Path("alert_id") int alert_id);

for retrofit with Rx java you can use something like this

@PATCH("alerts/{alert_id}/accept") Observable> accept_invited_alerts(@Header("X-Api-Token") String api_token, @Path("alert_id") int alert_id);