POST with Android Retrofit

One of the benefits of Retrofit is not having to parse the JSON yourself. You should have something like:

service.login(email, password, new Callback<User>() {         @Override        public void failure(final RetrofitError error) {            android.util.Log.i("example", "Error, body: " + error.getBody().toString());        }        @Override        public void success(User user, Response response) {            // Do something with the User object returned        }    });

Where User is a POJO like

public class User {    private String name;    private String email;    // ... etc.}

and the returned JSON has fields that match the User class:

{  "name": "Bob User",  "email": "bob@example.com",  ...}

If you need custom parsing, the place for that is when setting the REST adapter's converter with .setConverter(Converter converter):

The converter used for serialization and deserialization of objects.

Seem Retrofit have problem with @POST and @FormUrlEncoded. It works well if we do synchronous but failed if asynchronous.

If @mike problem is deserialization object, User class should be

public class User {     @SerializedName("name")     String name;     @SerializedName("email")     String email;}

Interface class

@FormUrlEncoded@POST("/login")void login(@Field("username") String username, @Field("password") String password, Callback<User> callback);

Or

@FormUrlEncoded@POST("/login")void login(@Field("username") String username, @Field("password") String password, Callback<UserResponse> callback);

Where

public class UserResponse {@SerializedName("email")String email;@SerializedName("name")String name;}