Retrofit2 Multi Part File Upload ApiInterface class

Retrofit2MultiPartFileUploadApiInterface.java

import java.util.List;

import okhttp3.MultipartBody;
import okhttp3.RequestBody;
import retrofit2.Call;
import retrofit2.http.Multipart;
import retrofit2.http.POST;
import retrofit2.http.Part;

public interface ApiInterface {

    @Multipart
    @POST("multifileupload/index.php")
    Call<SuccessData> uploadFiles(
            @Part("description") RequestBody description,
            @Part List<MultipartBody.Part> files
    );
    
}