How can I return datas to Http Request?

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•

Robin

This might have the solution and a reasonable explanation:

'On the Internet page there is a simple example of sending data in the URL from a webpage, but it can be unreliable if anywhere between your browser and the Espruino decides to cache the received data.'

http://www.espruino.com/Posting+Forms

My suggestion is to post the response data in it's entirety so that others may take a look and compare to what should be in the response packet.

'how do they go back to'

Don't know but, could it be the use of the arrow functions not allowing binding to the http response object?

•

user109783 in reply to @Robin

This is the request message

GET /hello.txt HTTP/1.1
User-Agent: Espruino 2v04.401
Connection: close
Host: http://www.pur3.co.uk

And this is the response message

RECV FROM:93.93.135.13:80
+IPD259
HTTP/1.1 200 OK
Date: Wed, 25 Mar 2020 02:30:54 GMT
Server: Apache/2.4.18 (Ubuntu)
Last-Modified: Fri, 15 Nov 2013 15:42:26 GMT
ETag: "d-4eb390b887c80"
Accept-Ranges: bytes
Content-Length: 13
Connection: close
Content-Type: text/plain
Hello World!
+IPCLOSE: 0,1

I tried to put debuggers in two places. In this place, I can't reach the debugger 2.

     debugger;  // 1
    http.get("http://www.pur3.co.uk/hello.txt", function(res) {
      debugger;  //2
      let str = ''; 
      res.on('data', chunk => {
        console.log("chunk",chunk);
        str += chunk;
      });
      res.on('end', () => {
        console.log("Get some test request contents: --->   ", str);
      });
    });

And the second place here:

recv: function (sckt, maxLen) {
    if (sockData[sckt]) {
      console.log("ddddddddddddddd",sockData[sckt])
      var r;
      console.log("recv", sockData[sckt].length);
      if (sockData[sckt].length > maxLen) {
        r = sockData[sckt].substr(0, maxLen);
        sockData[sckt] = sockData[sckt].substr(maxLen);
        console.log("recv", sockData[sckt]);
      } else {
        r = sockData[sckt];
        sockData[sckt] = "";
        console.log("recv | socks[sckt]", socks[sckt]);
        if (socks[sckt] == "DataClose") {
          dbg("Got DataClose - forcing close");
          socks[sckt] = "closing";
        }
      }
      console.log("[recv data]", r);
      debugger; // 3
      return r;
    }
    if (socks[sckt] == "closing" || !socks[sckt]) return -1; // close it
    return "";
  },

I can reach debugger 3. And then where the code goes puzzle me so much! What's the relation between Http.get() and recv()?

debug>step
          return r;
          ^
debug>step
Value returned is ="Hello World!"

How can I return datas to Http Request?

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Espruino