fastify get ip

To get the IP address of a client in Fastify, you can use the request.ip property. Here's an example:

const fastify = require('fastify')();

fastify.get('/', (request, reply) => {
  const ip = request.ip;
  reply.send(`Your IP address is: ${ip}`);
});

fastify.listen(3000, (err) => {
  if (err) {
    console.error(err);
    process.exit(1);
  }
  console.log('Server is running on port 3000');
});

In this example, when a client makes a GET request to the root URL ("/"), the server retrieves the client's IP address using request.ip and sends it back as a response