Caused by: retrofit.RetrofitError: method POST must have a request body

Question

I am using retrofit to make a post api call, I am getting the following error while trying to hit the endpoint.

     Caused by: rx.exceptions.OnErrorNotImple         


        

Answer 1

I solved this issue by replacing @Query to @Field, here is how:

Not working code:

@POST("/my/url/path")
Result postToServer(
        @Query("user_name") String userName);

Working example:

@FormUrlEncoded
@POST("/my/url/path")
Result postToServer(
        @Field("user_name") String userName);

For methods that do not have any fields I had to add empty string like below

Result postToServer(@Path("my_path") String myPath,
                               @Body String emptyString);

And call it passing "":

restClient.postToServer(myPath, "");