In this section, we're going to take a look at using the @Produces and @Consumes annotations to specify the content types. We'll also learn about API versioning using custom content types, smart content negotiation using a quality from server factor, and how you can serve and upload binary content.
Let's switch to code and open our IDE. Let's take a look at the small REST service that we have prepared. As you already know, you can specify the @Produces or @Consumes annotations to specify what your REST service will consume as a content type and what content type your REST service will produce. What we do here is we specify application/json. This is what we usually do. We implement this method and return a simple Map with the status code ok. Using JAX-RS, we'll make sure that this Map is serialized...