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A TCP client is a program that:
It’s the starting point of communication.
No client = No connection
No connection = No data flow
| const net = require('net'); const client = net.createConnection({ port: 3000 }, () => { console.log('Connected to server'); // Sending data to server client.write('Hello Server!'); }); // Receiving data from server client.on('data', (data) => { console.log('Server says:', data.toString()); // Closing connection after receiving response client.end(); }); // When connection ends client.on('end', () => { console.log('Disconnected from server'); }); |
The client starts everything
Event | Meaning |
| connect | Connection established |
| data | Data received from server |
| end | Connection closed |
| error | Connection issue |
The TCP client is the initiator of communication.
It connects, sends, receives, and makes your server useful and active.
Without a client, your server is just waiting in silence.
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What is a TCP Client?
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