Retrofit is mainly used to interact with well-defined REST APIs. Nevertheless, you can also use Retrofit to crawl HTML sources of websites. In this tutorial, you'll explore how to utilize jspoon and Retrofit to automatically extract content from Wikipedia. In a practical example you'll understand the basic functionality of jspoon …

Android apps usually interact with REST APIs, which often use JSON as a data format. We've focused almost all of our tutorials on sending JSON or XML requests, and converting JSON or XML responses. We briefly explored other data formats in our introduction to converters tutorial, but didn't go into …

A lot of professionally made apps use a bug tracking service, which collects errors and crashes of all users and lets us, as the developers, further improve the app by fixing the issues. The default Retrofit request callbacks offer an onFailure() method, which throws a variety of possible errors in …

In the last tutorial we've introduced Retrofit call adapters. In this tutorial, you'll benefit from learning how to implement a custom call adapter, and you'll see how to separate the onResponse callback into more useful callbacks. By the end of the tutorial, you won't need to write this boilerplate code …

You've learned about the upsides of Retrofit call adapters in our introduction to call adapters. We've also mentioned that you can use provided first-party call adapters to integrate a variety of flow frameworks. In this tutorial, you'll learn how to integrate Retrofit's request callbacks into your RxJava 1.x flow. …

It's time to kick off a brand-new Retrofit topic and mini series: call adapters. In this first introductory tutorial you'll learn what call adapters are and how you can utilize them in Retrofit. {{outline}} Call Adapter Basics — What Are They? Before we can dive into call adapters, we need to …

Retrofit uses some default network timeout settings, which might not fit your use case. If your app needs to be extra snappy, or in the other direction, if your server is slow, you might want to change those timeout settings. In this tutorial you'll learn how you can customize all …

We were hesitant to write this tutorial, but due to the many, many requests: in this tutorial you will learn how to ignore the connection's security handshake and let Retrofit accept any, even bad SSL certificates. This includes revoked, expired or self-signed SSL certificates. Warning: ignoring SSL certificate validity is …