How to Implement HTTP Logging in Retrofit 2?

Logging in Retrofit 2

In Retrofit 2, logging has been enhanced by providing more control over the level of detail in the logs. To enable logging, you can use the HttpLoggingInterceptor.

Implementation:

1. Add the dependency to your build.gradle file:

   implementation 'com.squareup.okhttp3:logging-interceptor:4.11.0'

2. Create a HttpLoggingInterceptor and specify the desired logging level:

   HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
   interceptor.level(HttpLoggingInterceptor.Level.BODY);

3. Create an OkHttpClient and add the interceptor:

   OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();

4. Use the OkHttpClient to build your Retrofit instance:

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

With this setup, you will get detailed logs in your logcat, including the exact JSON payload sent in the request.

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