I need to build a website in which Javascript is used as the client language to communicate with a python server over websockets. The website needs to be hosted on Linux. For now, I'm using command python -m SimpleHTTPServer to build a simple server, and the server is also on the Linux and using python.
How do I go about at setting up the javascript client websocket communication? Or how should I approach the architecture?
Assuming that your python websocket server is up an running. You can connect with it through your website through either html5:
socket= new WebSocket('ws://www.example.com:8000/somesocket');
socket.onopen= function() {
socket.send('hello');
};
socket.onmessage= function(s) {
alert('got reply '+s);
};
Or via
http://raw-sockets.sysapps.org/#interface-tcpsocket
https://www.w3.org/TR/tcp-udp-sockets/
navigator.tcpPermission.requestPermission({remoteAddress:"127.0.0.1", remotePort:6789}).then(
() => {
// Permission was granted
// Create a new TCP client socket and connect to remote host
var mySocket = new TCPSocket("127.0.0.1", 6789);
// Send data to server
mySocket.writeable.write("Hello World").then(
() => {
// Data sent sucessfully, wait for response
console.log("Data has been sent to server");
mySocket.readable.getReader().read().then(
({ value, done }) => {
if (!done) {
// Response received, log it:
console.log("Data received from server:" + value);
}
// Close the TCP connection
mySocket.close();
}
);
},
e => console.error("Sending error: ", e);
);
Whatever your server looks like, you always need to make sure your server and client use the same "protocol", i.e. they use the same variables to send and order in which to send them.
If you also need to set up a socket server in python, I suggest you look at some tutorials online as this is a non-trivial task: http://www.binarytides.com/python-socket-server-code-example/
