Introduction to nssocket

nssocket is a highly versatile and robust library for setting up real-time networking in Node.js applications. It provides an easy way to create TCP sockets with a rich set of APIs for seamless communication. Whether you are building a chat application, a multiplayer game, or any real-time service, nssocket has you covered.

Getting Started with nssocket

To start using nssocket, you first need to install it via npm:

  npm install nssocket

Creating a Basic Server

Creating a simple TCP server using nssocket is straightforward. Here’s an example:

  const nssocket = require('nssocket');

  const server = nssocket.createServer(function(socket) {
    console.log('New client connected!');
    
    socket.send(['greet'], 'Hello, client!');
    
    socket.data(['reply'], function(data) {
      console.log('Client says: ' + data);
    });
  });

  server.listen(6785, function() {
    console.log('Server listening on port 6785');
  });

Creating a Client

To connect to the server, you can create a client using nssocket as shown below:

  const nssocket = require('nssocket');

  const socket = new nssocket.NsSocket();

  socket.connect(6785);

  socket.data(['greet'], function(data) {
    console.log('Server says: ' + data);
    socket.send(['reply'], 'Hi, server!');
  });

Event Handling

nssocket makes it easy to handle various events. Here are some examples:

  socket.on('data', function(data) {
    console.log('Received data: ' + data);
  });

  socket.on('end', function() {
    console.log('Connection ended');
  });

  socket.on('close', function() {
    console.log('Connection closed');
  });

  socket.on('error', function(err) {
    console.error('Error occurred: ' + err.message);
  });

Implementing Custom Protocols

With nssocket, you can define and handle custom protocols. Here’s an example:

  const nssocket = require('nssocket');

  const server = nssocket.createServer(function(socket) {
    socket.data(['custom', 'message'], function(data) {
      console.log('Custom Message: ' + data);
    });
    socket.send(['custom', 'message'], 'Custom Protocol Active');
  });

  server.listen(6785);

And a client to interact with this custom protocol:

  const nssocket = require('nssocket');

  const socket = new nssocket.NsSocket();

  socket.connect(6785);

  socket.data(['custom', 'message'], function(data) {
    console.log('Custom Protocol Received: ' + data);
    socket.send(['custom', 'message'], 'Acknowledged, Custom Protocol');
  });

Full Application Example

Here is a complete example of a chat application using nssocket:

  // Server
  const nssocket = require('nssocket');
  
  const server = nssocket.createServer(function(socket) {
    console.log('New user connected');
    socket.send(['chat', 'message'], 'Welcome to the chat!');

    socket.data(['chat', 'message'], function(message) {
      console.log('User says: ' + message);
      
      socket.send(['chat', 'message'], 'Server: Received your message - ' + message);
    });
  });
  
  server.listen(6785, function() {
    console.log('Chat server listening on port 6785');
  });

Client code:

  // Client
  const nssocket = require('nssocket');
  
  const socket = new nssocket.NsSocket();
  
  socket.connect(6785);
  
  socket.data(['chat', 'message'], function(message) {
    console.log(message);
    
    process.stdin.resume();
    process.stdin.on('data', function(data) {
      socket.send(['chat', 'message'], data.toString().trim());
    });
  });

With nssocket, creating real-time network applications in Node.js becomes effortless and highly efficient. Its rich API allows you to build complex communication protocols with ease.

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