ExploreOkHttp

An exploratory console application written in kotlin to showcase how to use OkHttp a modern applications HTTP client.

What can you find?

• Use and configure OkHttpClient.Builder to get OkHttpClient.
• Add interceptors, such as
  • HttpLoggingInterceptor
  • custom interceptors, serving different purposes, such as authentication, or add custom headers
  • Network layer interceptor (such as to enable caching)
  • Application layer network interceptor (enforce cache to be used)

OkHttp Interceptor design

Demo for network caching using interceptors

Web Sevice

• jsonplaceholder posts API is used in order to showcase API call capabilities ok OkHttp

Dependencies

• com.squareup.okhttp3:okhttp:4.10.0
• com.squareup.okhttp3:logging-interceptor:4.10.0
• com.google.code.gson:gson:2.9.0

[TODO] Explore authenticator use cases.

References

• OkHttp - official site
• mindorks okhttp interceptors - nice use cases of interceptors
• objectpartners blog on authenticator - explain in detail usage of authenticator
• baeldung okhttp interceptors
• SO - How to cache OkHttp response from Web server?
• A complete guide to okhttp