Client.java

package io.vertx.example.core.http.upload;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.file.AsyncFile;
import io.vertx.core.file.FileProps;
import io.vertx.core.file.FileSystem;
import io.vertx.core.file.OpenOptions;
import io.vertx.core.http.HttpClientOptions;
import io.vertx.core.http.HttpClientRequest;
import io.vertx.core.streams.Pump;
import io.vertx.example.util.Runner;

/*
 * @author <a href="http://tfox.org">Tim Fox</a>
 */
public class Client extends AbstractVerticle {

  // Convenience method so you can run it in your IDE
  public static void main(String[] args) {
    Runner.runExample(Client.class);
  }

  @Override
  public void start() throws Exception {
    HttpClientRequest req = vertx.createHttpClient(new HttpClientOptions()).put(8080, "localhost", "/someurl", resp -> {
      System.out.println("Response " + resp.statusCode());
    });
    String filename = "upload.txt";
    FileSystem fs = vertx.fileSystem();

    fs.props(filename, ares -> {
      FileProps props = ares.result();
      System.out.println("props is " + props);
      long size = props.size();
      req.headers().set("content-length", "" + size);
      fs.open(filename, new OpenOptions(), ares2 -> {
        AsyncFile file = ares2.result();
        Pump pump = Pump.pump(file, req);
        file.endHandler(v -> {
          req.end();
        });
        pump.start();
      });
    });


  }
}