WebSocket not work after code burn into NodeMcu using espruino IDE

[espruino-discuss3]

Posted at 2018-04-09 by Saurabh

user88627
Hi

I am using NodeMcu with espruino_1v96 .

I write a program in debugging mode its working fine . when same program write in NodeMcu using save();
program is not working .

here is my Code

var led = new Pin(D4);
var host = "192.168.0.103";
var WebSocket = require("ws");

var ws = new WebSocket(host,{
path: '/',
port: 8000, // default is 80
protocol : "echo-protocol", // websocket protocol name (default is none)
protocolVersion: 13, // websocket protocol version, default is 13
origin: 'Espruino',
keepAlive: 60,
headers:{ some:'header', 'ultimate-question':42 } // websocket headers to be used e.g. for auth (default is none)
});
ws.on('open', function() {
console.log("Connected to server");
});

ws.on('message', function(msg) {
var data = JSON.parse(msg);
digitalWrite(led, data.bulb?1:0);
});

save();

[espruino-discuss3]

Posted at 2018-04-09 by @gfwilliams

Check out http://www.espruino.com/Saving

you need to put your code in an onInit function (or ideally actually wait until you know WiFi is connected with http://www.espruino.com/Reference#l_Wifi_connected).

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Posted at 2018-04-10 by Saurabh

Thanks i use onInt with settimeout now its working

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Posted at 2018-04-10 by @allObjects

@user88627, using a setTimeout() to wait for Wifi to become connected is a cludge tower... It will come crashing down sooner or later, that's no question... use callback technique instead...