Android Tutorial => Add logging to Retrofit2

Example

Retrofit requests can be logged using an intercepter. There are several levels of detail available: NONE, BASIC, HEADERS, BODY. See Github project here.

Add dependency to build.gradle:

compile 'com.squareup.okhttp3:logging-interceptor:3.8.1'

Add logging interceptor when creating Retrofit:

  HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
  loggingInterceptor.setLevel(LoggingInterceptor.Level.BODY);
  OkHttpClient okHttpClient = new OkHttpClient().newBuilder()
          .addInterceptor(loggingInterceptor)
          .build();
  Retrofit retrofit = new Retrofit.Builder()
          .baseUrl("http://example.com/")
          .client(okHttpClient)
          .addConverterFactory(GsonConverterFactory.create(gson))
          .build();

Exposing the logs in the Terminal(Android Monitor) is something that should be avoided in the release version as it may lead to unwanted exposing of critical information such as Auth Tokens etc.

To avoid the logs being exposed in the run time, check the following condition

if(BuildConfig.DEBUG){
     //your interfector code here   
    }

For example:

HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
if(BuildConfig.DEBUG){
     //print the logs in this case   
    loggingInterceptor.setLevel(LoggingInterceptor.Level.BODY);
}else{
    loggingInterceptor.setLevel(LoggingInterceptor.Level.NONE);
}

OkHttpClient okHttpClient = new OkHttpClient().newBuilder()
      .addInterceptor(loggingInterceptor)
      .build();

Retrofit retrofit = new Retrofit.Builder()
      .baseUrl("http://example.com/")
      .client(okHttpClient)
      .addConverterFactory(GsonConverterFactory.create(gson))
      .build();

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Android Retrofit2 Add logging to Retrofit2

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