Accept json on client from nodejs/express server?

Question

JavaScript

Good afternoon! Please tell me how can I send data from the nodejs / express server and receive it in json format on the client?
There should be something like this on the server

app.get ('/', function (req, res) {
// res.setHeader ( 'Content-Type "," application / json');
res.json ({message: `API Initialized!`});
});

how to accept it on the client?
Thank you!

Answer 1

fetch('/')
  .then(response => response.json())
  .then(console.log);