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@nicnocquee
Created April 12, 2022 03:09
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simple tcp server with node.js
const Net = require("net");
// The port on which the server is listening.
const port = 8080;
// Use net.createServer() in your code. This is just for illustration purpose.
// Create a new TCP server.
const server = new Net.Server();
// The server listens to a socket for a client to make a connection request.
// Think of a socket as an end point.
server.listen(port, function () {
console.log(
`Server listening for connection requests on socket localhost:${port}`
);
});
// When a client requests a connection with the server, the server creates a new
// socket dedicated to that client.
server.on("connection", function (socket) {
console.log("A new connection has been established.");
socket.write("Hello, client.");
// The server can also receive data from the client by reading from its socket.
socket.on("data", function (chunk) {
console.log(`Data received from client: ${chunk.toString()}`);
});
// When the client requests to end the TCP connection with the server, the server
// ends the connection.
socket.on("end", function () {
console.log("Closing connection with the client");
});
// Don't forget to catch error, for your own sake.
socket.on("error", function (err) {
console.log(`Error: ${err}`);
});
});
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