Is it necessary to set a Content-Type in Node.js?

Question

Just started playing with Node.js and after seeing a few examples I see that usually the Content-Type is set before returning some content.

Usually somethin

Answer 1

Of course not, if you are playing with NodeJs. But to make a maintainable code with different modules, large and API pages you should have 'Content-Type' in your server definition.

const http = require('http');

const host_name = 'localhost';
const port_number = '3000';

const server = http.createServer((erq, res) => {
    res.statusCode = 200;
    // res.setHeader('Content-Type', 'text/html');
    res.end("
 Head Line 
 
 Line 2 
 Line 3");
});

server.listen(port_number, host_name, ()=> {
    console.log(`Listening to http://${host_name}:${port_number}`);
});