1. JSON-B

JSON support using Jakarta JSON Binding (JSON-B) api and Yasson implementation.

1.1. Usage

1) Add the dependency:

Maven
Gradle
<dependency>
  <groupId>io.jooby</groupId>
  <artifactId>jooby-yasson</artifactId>
  <version>2.10.0</version>
</dependency>

2) Install and encode/decode JSON

Java
Kotlin
import io.jooby.json.YassonModule;

{
  install(new YassonModule());                        (1)

  get("/", ctx -> {
    MyObject myObject = ...;
    return myObject;                                (2)
  });

  post("/", ctx -> {
    MyObject myObject = ctx.body(MyObject.class);   (3)
    ...
  });
}
1 Install JSON-B Yasson Module
2 Use JSON-B to encode arbitrary object as JSON
3 Use JSON-B to decode JSON to Java object. Client must specify the Content-Type: application/json header

1.2. Working with JSON-B

Access to default object mapper is available via require call:

Default object mapper
Java
Kotlin
import io.jooby.json.YassonModule;

{
  install(new YassonModule());

  Jsonb jsonb = require(Jsonb.class);

  ...
}

You can provide your own Jsonb:

Custom ObjectMapper
Java
Kotlin
import io.jooby.json.YassonModule;

{
  Jsonb jsonb = JsonbBuilder.create();

  install(new YassonModule(jsonb));
}