Sending JSON

The previous example sends plain text. To send JSON, pass the object to encode to JSON (whether that be a Map or a POJO) as long as Jackson is able to encode it.

For example, you can create a Message from the previous section and pass it to the POST method:

Sending a JSON body

        Flux<HttpResponse<Message>> call = Flux.from(client.exchange(
                POST("/greet", new Message("Hello John")), (1)
                Message.class (2)
        ));

Sending a JSON body

        Flux<HttpResponse<Message>> call = Flux.from(client.exchange(
                POST("/greet", new Message("Hello John")), (1)
                Message (2)
        ))

Sending a JSON body

            val call = client.exchange(
                    POST("/greet", Message("Hello John")), Message::class.java (2)
            )

With the above example the following JSON is sent as the body of the request:

Resulting JSON

{"text":"Hello John"}

The JSON can be customized using Jackson Annotations.