📑 Vert.x core Examples

🏷️Tags : #31-05-2022, #pending #completed #permanent

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Key Takeaways

Overview

Vert.x Core :

Vert.x Simple HTTP Server

below mentioned is the simplest http server that will basically return the same html on each hit
it is running on port number 9090
and it can be hit from the browser

@Override  
public void start() throws Exception {  

    vertx.createHttpServer().requestHandler(  
            req -> {  
                req.response().putHeader("content-type", "text/html")  
                        .end(" <html>  <body> <h1 style=\"color:red;\" > From the server </h1>  </body>  </html>  ");  
            }  
    ).listen(9090);  

}

Vert.x simple Http Client Code

@Override  
public void start() throws Exception {  
    HttpClient client= vertx.createHttpClient();  
    client.request(HttpMethod.GET ,9090 ,"localhost", "/" )  
            .compose(req  ->req.send()  
            .compose(resp -> {  
                System.out.println("Received response from server " + resp.statusCode());  
                System.out.println("Received response from Server message " + resp.statusMessage());  
                return resp.body();  
            }))  
            .onSuccess( body -> {  
                System.out.println("Got data "+body.toString("ISO-8859-1"));  
                    }  
            )  
            .onFailure(Throwable::printStackTrace);  
  }