How to send an array using QWebSocket? - arrays

Question

I created a client-server system including:
a node.js server (with module ws);
a WebClient;
a QtClient (using Qt5.4 and QWebSocket).
The QtClient sends and receives strings via the method QWebSocket.sendTextMessage (QString s). How can I send an array of strings?
OTHER INFO:
The WebClient sends an array using JSON:
# index.html (WebClient)
socket.onopen = function() {
var array = {
value1: "WebClient value1 = v1",
value2: "WebClient value2 = v2"
};
socket.send(JSON.stringify(array), {binary: true, mask: false});
};
# server.js
socket.on('connection', function(ws) {
ws.on('message', function(message) {
var array = JSON.parse(message);
console.log(array["value1"]);
console.log( array["value2"]);
});
});
# console node
C:\Users\PietroP\Desktop\cs\v0.3>node server.js
Server connect on http://192.168.1.60:3000/
a user connected
WebClient value1 : v1
WebClient value2 : v2

Answer 1

QWebSocket class does not have direct implementation for sending arrays. You can send binary or text messages. For details please refer to:
http://doc.qt.io/qt-5/qwebsocket.html
Here is an alternative approach:
You can convert your array into a long string using something like
str = array.toString() // This is psuedo code
in a loop and send from the sender side. Then on the receiver side you can get parse it using a method such as
str.split(...);
Hope that heps!
Edit: You've probably already noticed that: in your sample code what JSON.stringify(array) and JSON.parse(message) do is nothing but converting array to string and then parse the string into array again.