Nodejs how to write server response to variable?

Question

Node.js

I make a request to the server, how to correctly write the response to a variable?

let str;
  const net = require('net');
  const client = net.createConnection({
    host: '127.0.0.1',
    port: 3545
    }, () => {
    client.write('status\r\n');
  });
  client.on('data', (data) => {
    str = data;
    client.end();
  });
  client.on('end', () => {
  });

console.log(str)

I understand that console.log will output undefined since it will be executed before the result is written to the variable, but how to do it right?