Retrofit 2.0 method without response

Question

In my current android project I'm sending some data to my web server with the new Retrofit 2.0 library. I only want to run a script there and the server does not return anything. I thought I can do this with this method:

@POST("persons/insert.php")
Call<Void> insert(@Field("Name") String name);

My problem now is, that Retrofit jumps to the onFailure method although the server returns 200. That happens because nothing can be converted to Void. So how should I fix this method? I want that the onResponse method is called if the server sends 200 back and the onFailure if an error occurred. How can I achieve that?

Answer 1

You can have it return a ResponseBody.

@POST("persons/insert.php")
Call<ResponseBody> insert(@Field("Name") String name);

You will still get onResponse and onFailure, but it will not try to deserialize the stream to an object.

Answer 2

You can completely avoid the response body. In beta2, you can do Call<Void> to discard the response body and just obtain the http status code.

@POST("persons/insert.php")
Call<Void> insert(@Field("Name") String name);