compare event based handling of post-request with piping

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•

Gordon

Sure, the code I ended up using was:

var http = require("http");
var page = `<html>
<head>
	<title>test pipe</title>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
</head>
<body>
	  <button id="uploadPipe">Upload piped</button>
	  <button id="uploadStd">Upload eventdriven</button>
	  <button id="getUploaded">Read uploaded</button>
	  <textarea rows="25" cols="100" id="Htmlfile"></textarea>
</body>
<script>
  $("#Htmlfile").val( $("html").html());
  $("#uploadPipe").click(function(){
    $.post("uploadPipe",$("#Htmlfile").val(),function(data){});
  });
  $("#uploadStd").click(function(){
    $.post("uploadStd",$("#Htmlfile").val(),function(data){});
  });
  $("#getUploaded").click(function(){
    $.get("uploaded.html",function(data){
	  $("#Htmlfile").val(data);
	});
  });
</script>
</html>`;
var r;

function httpServer(){
  var me = this;
  var srv;
  function handleGet(req,res){
    res.writeHead(200,{"Content-Type":"text/html"});
    if (req.url!=="/uploaded.html") {
      res.end(page);
      return;
    } 
    var f = E.openFile("uploaded.html","r");
    var data,ext,type;
    if(f !== undefined){
      do{
        data = f.read(32);
        if (data) res.write(data);
      } while(data);
      res.end();
      f.close();
    }
    else{
      res.end(a.pathname + " not found");
    }
  }
  function uploadStd(a,req,res){
    console.log("uploadPipe",a);
    var f = E.openFile("uploaded.html","w");
    req.on("data",function(data){f.write(data);});
    req.on("close",function(){
      console.log();
      f.close();
      res.end("event upload done");
    });

  }
  
  function uploadPipe(a,req,res){
    console.log("uploadStd",a);
    var f = E.openFile("uploaded.html","w");
    req.pipe(f,{chunkSize:512, end:false,
      complete:function(){
          console.log("Complete");
          f.close();
          res.end("pipe upload done");
      }
    });
    res.end();
  }
  function handlePost(req,res){
    var a = url.parse(req.url,true); 
    switch(a.pathname){
      case "/uploadPipe":uploadPipe(a,req,res);break;
      case "/uploadStd":uploadStd(a,req,res);break;
    }
  }
  function handle(req,res){
    if (req.method == 'POST') 
	  handlePost(req,res);
    else if(req.method == 'GET') 
	  handleGet(req,res);
    else req.connection.destroy();
  }
  me.init = function(){
    srv = http.createServer(handle);
    srv.listen(8080);
  };
}
var srv = new httpServer();
srv.init();

So basically I call end immediately, because the connection will still be held open while the data received < Content-Length

compare event based handling of post-request with piping

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