Sending Form Data

You can also encode a POJO or a map as form data instead of JSON. Just set the content type to application/x-www-form-urlencoded on the post request:

Sending a Form Data

        Flux<HttpResponse<Book>> call = Flux.from(client.exchange(
                POST("/amazon/book/{title}", new Book("The Stand"))
                .contentType(MediaType.APPLICATION_FORM_URLENCODED),
                Book.class
        ));

Sending a Form Data

        Flux<HttpResponse<Book>> call = client.exchange(
                POST("/amazon/book/{title}", new Book("The Stand"))
                .contentType(MediaType.APPLICATION_FORM_URLENCODED),
                Book
        )

Sending a Form Data

            val call = client.exchange(
                    POST("/amazon/book/{title}", Book("The Stand"))
                            .contentType(MediaType.APPLICATION_FORM_URLENCODED),
                    Book::class.java
            )

Note that Jackson can bind form data too, so to customize the binding process use Jackson annotations.