Testing SW from Espruino book

You are reading a single comment by @allObjects and its replies. Click here to read the full conversation.

•

allObjects

...Ic

And you may have just found some interesting thing, may be an issue in the .parse(...).

I did some deep digging in the example, because it fooled me nicely...

Below my 'console talkative', working code. The main changes and detections are:

I made the method in the form submit a upper-case post... that solves the problem of asking the request req variable for the method before gong after the parsed request, which is called r. (Side note: I find it odd - to say the least - that lower-case url is a global that comes into play without definition... @Gordon?). But making that change still did not work, so I wanted to know and added all this console outputs, also did some renaming: upd - Url ParseD - for r... and - when 'consoling' that .parse(... return object, I got 'consoled' by the detection of the issue that, even though the request says it is a POST, the parsed url or request or what it is claims the request.POST as a GET. - See console output after the code...

I run it on a Espruino-WiFi... so some lines got commented and a few got added to take care of that...

// bp246WifiESP8266.js
// Test ESP8266 / Test Espruino-Wifi (book p. 246)
var WIFI_NAME = "MYSSID";
var WIFI_KEY =  "WIFIPWD";
WIFI_NAME="ssid"; WIFI_KEY ="pw";
var wifi;
var json;
var homepage = '<html><body>'+
'<h1>My Espruino</h1>'+
'<a href="/getTemp">Temperature</a></br></br>'+
'<form action="/?led=0" method="POST">'+
'<input type="submit" value="LEDS OFF"/></form>'+
'<form action="/?led=1" method="POST">'+
'<input type="submit" value="LED RED ON"/></form>'+
'<form action="/?led=2" method="POST">'+
'<input type="submit" value="LED GREEN ON"/></form>'+
'<form action="/?led=3" method="POST">'+
'<input type="submit" value="LED RED+GREEN ON"/></form>'+
'</body></html>';
function onInit() {
USB.setConsole(true);
//   Serial1.setup(115200, { tx:B6, rx: B7});
//   wifi = require("ESP8266WiFi_0v25").connect(Serial1, 
// function(err) {
//    if(err) throw err;
//    wifi.connect(WIFI_NAME, WIFI_KEY, function(err) {
var WIFI_OPTIONS = { password: WIFI_KEY };
wifi = require("EspruinoWiFi");
console.log("Connecting to WiFi...");
//    wifi.connect(WIFI_NAME, WIFI_KEY, function(err) {
wifi.connect(WIFI_NAME, WIFI_OPTIONS, function(err) {
  if(err) {
    console.log("Connection error: "+err);
    return;
  }
  onConnected();
});
//  });
}
function onConnected() {
console.log("Connected");
require("http").createServer(onPageRequest).listen(80);
//   wifi.getIP(function(err,ip){
//     console.log("Your IP address is http://" + ip);
wifi.getIP(function(err,ipInfo){
console.log("ip info: " + JSON.stringify(ipInfo));
});
}
function onPageRequest(req, res) {
console.log(" 1) Serving:         " + req.url);
console.log(" 2) method:          " + req.method);
console.log(" 3) method:          " + JSON.stringify(req.method));
console.log(" 4) typeof method:   " + (typeof req.method));
var upd = url.parse(req.url, true);
console.log(" 5) upd (url parsed:");
  console.log(upd);
console.log(" 6) query:           " + JSON.stringify(upd.query));
console.log(" 7) upd.query b:     " + ((upd.query) ? "true" : "false"));
if (upd.query) {
console.log(" 8) upd.query.led b: " + ((upd.query.led) ? "true" : "false"));
}
console.log(' 9) (req.method == "POST"): ');
console.log("      " + ((req.method == "POST") ? "true" : "false"));
console.log('10) (req.method === "POST"): ');
console.log("      " + ((req.method == "POST") ? "true" : "false"));
console.log('11) (req.method === "POST" && upd.query && upd.query.led): ');
console.log("      "  + ((req.method == "POST" && upd.query && upd.query.led) ? "true" : "false"));
if (upd.pathname == "/") {
// controllo passaggio parametri
if (req.method == "POST" && upd.query && upd.query.led) {
//       digitalWrite([LED2,LED1], r.query.led);
  digitalWrite([LED2,LED1], upd.query.led);
//      digitalWrite([LED2,LED1], parseInt(upd.query.led));
}      
// Onora la richiesta della pagina
res.writeHead(200, {"Content-Type!": "text/html"});
res.end(homepage);
} else if (upd.pathname == "/getTemp"){
res.writeHead(200, {"Content-Type!": "text/html"});
res.end('<html><head>'+
        '<meta http-equiv="refresh" content="2">'+
        '</head><body>'+E.getTemperature().toFixed(2)+
        '</body></html>');
} else {
res.writeHead(404);
res.end("404 - Not Found");
}
}

// remove this and next line line before saving code to flash
setTimeout(onInit,1000);

In the next post is the 'chatty' console output, that shows that...

Testing SW from Espruino book

About

Espruino