Boilerplate code for Retrofit in code

build.gradle

dependencies {
    /* take care of the current versions while adding */
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:24.0.0'
    compile 'com.android.support:design:24.0.0'
    compile 'com.android.support:cardview-v7:24.0.0'
    compile 'com.jakewharton:butterknife:7.0.1'
    compile 'com.squareup.retrofit2:retrofit:2.0.1'
    compile 'com.squareup.retrofit2:converter-jackson:2.0.1'
    compile 'com.squareup.retrofit2:adapter-rxjava:2.0.1'
    compile 'com.squareup.okhttp3:logging-interceptor:3.3.1'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'io.reactivex:rxandroid:1.1.0'
    compile 'io.reactivex:rxjava:1.1.0'
    compile 'com.android.support:support-v4:24.0.0'
}

ServiceGenerator.java

import java.io.IOException;

import in.surajsau.popularmovies.IConstants;
import okhttp3.HttpUrl;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
import retrofit2.converter.jackson.JacksonConverterFactory;

/**
 * Created by MacboolBro on 08/04/16.
 */
public class ServiceGenerator {

    /*Interceptor for common query param to be put in every url like API key*/
    
    // private static Interceptor apiKeyInterceptor = new Interceptor() {
    //     @Override
    //     public Response intercept(Chain chain) throws IOException {
    //         Request request = chain.request();
    //         HttpUrl url = request.url().newBuilder().addQueryParameter(IConstants.API_KEY_PARAM, IConstants.API_KEY).build();
    //         request = request.newBuilder().url(url).build();
    //         return chain.proceed(request);
    //     }
    // };

    /*For logging the Requests.
      in build.gradle add .. compile 'com.squareup.okhttp3:logging-interceptor:3.3.1'
    */
    // private static HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();

    // private static OkHttpClient.Builder httpClient = new OkHttpClient.Builder()
    //                                                         .addInterceptor(apiKeyInterceptor);

    private static Retrofit.Builder builder = new Retrofit.Builder()
                                                    .baseUrl(IConstants.BASE_URL)
                                                    .addConverterFactory(JacksonConverterFactory.create())
                                                    .addCallAdapterFactory(RxJavaCallAdapterFactory.create());

    public static<T> T createService (Class<T> serviceClass) {
        //--adding loggingInterceptor
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        httpClient.addInterceptor(loggingInterceptor);

        Retrofit retrofit = builder.client(httpClient.build()).build();
        return retrofit.create(serviceClass);
    }

}