create a udp server on a specific port in typescript

To create a UDP server on a specific port in TypeScript, you can use the built-in Node.js dgram module.

Here's an example TypeScript code:


index.ts
import * as dgram from 'dgram';

const PORT = 3000;
const HOST = '0.0.0.0';

const server = dgram.createSocket('udp4');

server.on('listening', () => {
  const address = server.address();
  console.log(`UDP server listening on ${address.address}:${address.port}`);
});

server.on('message', (message, remote) => {
  console.log(`${remote.address}:${remote.port} - ${message}`);
});

server.bind(PORT, HOST);
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This code creates a UDP server that listens on port 3000. When a message is received, it logs the message and the address/port it came from.

To run this code, you'll need to have Node.js installed and run the following command:


index.ts
$ npm install @types/node
$ tsc udp-server.ts && node udp-server.js
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This will compile the TypeScript code to JavaScript and then start the UDP server.

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