Sample ClientModule OkHttpClient https://hackernoon.com/yet-another-mvp-article-part-3-calling-apis-using-retrofit-23757f4eee05

ClientModule.java

package com.mirhoseini.stylight.domain;

/*...*/

@Module
public class ClientModule {
    /*...*/

    @Singleton
    @Provides
    public OkHttpClient provideOkHttpClient(HttpLoggingInterceptor loggingInterceptor,
                                            @Named("networkTimeoutInSeconds") int networkTimeoutInSeconds,
                                            @Named("isDebug") boolean isDebug,
                                            Cache cache,
                                            @Named("cacheInterceptor") Interceptor cacheInterceptor,
                                            @Named("offlineInterceptor") Interceptor offlineCacheInterceptor,
                                            @Named("retryInterceptor") Interceptor retryInterceptor) {

        OkHttpClient.Builder okHttpClient = new OkHttpClient.Builder()
                .addNetworkInterceptor(cacheInterceptor)
                .addInterceptor(offlineCacheInterceptor)
                .addInterceptor(retryInterceptor)
                .cache(cache)
                .connectTimeout(networkTimeoutInSeconds, TimeUnit.SECONDS);

        //show logs if app is in Debug mode
        if (isDebug)
            okHttpClient.addInterceptor(loggingInterceptor);

        return okHttpClient.build();
    }
    
    /*...*/
    
}