How to do a Http POST of a string with rxSendStream of io.vertx.reactivex.ext.web.client.WebClient

Question

I am new to Vertx and Rx Java. I want to do a Http POST , but my content is a string. Here is my code :

Single<HttpResponse<Buffer>> single = webClient
  .post(apiUrl)          
  .rxSendStream(body);

and body can be any of the following:

• Flowable<Buffer> body or
• Observable<Buffer> body or
• Buffer body

My question is how do i convert body to any of the above types

Answer 1

The easiest way is this:

WebClient webClient = WebClient.create(vertx);
String body  = "";
webClient.post(apiUrl)
   .rxSendBuffer(Buffer.buffer(body))
   .subscribe(resp -> {
     System.out.println(resp.body().toString());
   });