Retrofit: sending POST request

Question

This is declaration of my POST request:

@POST("/api/geo/getLoc")
    public void getFriendsLocation(@Field("Id") int Id, @Field("Number") String Number, @Field("FriendNumber") String FriendNumber, Callback<JsonElement> response);

This is how i try to send and handle this request:

 String ENDPOINT = "http://52.88.**.***";
 FriendModel ff = new FriendModel();
        ff.setFriendNumber("380935275259");
        ff.setId(516);
        ff.setNumber("380936831127");
        RestAdapter adapter = new RestAdapter.Builder()
                .setEndpoint(ENDPOINT)
                .build();
        WayfAPI api = adapter.create(WayfAPI.class);
        api.getFriendsLocation(ff.getId(), ff.getNumber(), ff.getFriendNumber(), new Callback<JsonElement>() {
            @Override
            public void success(JsonElement jsonElement, Response response) {
                String strObj = jsonElement.toString();
            }

            @Override
            public void failure(RetrofitError error) {

            }
        });

Error:

 retrofit.RetrofitError: WayfAPI.getFriendsLocation: @Field parameters can only be used with form encoding. (parameter #1)

What's wrong with my request ?

Answer 1

I guess you forget @FormUrlEncoded annotation in your method declaration. It should be like this:

@FormUrlEncoded
@POST("/api/geo/getLoc")
public void getFriendsLocation(@Field("Id") int Id, @Field("Number") String Number, @Field("FriendNumber") String FriendNumber, Callback<JsonElement> response);