How to add Express.js response timeout with Node.js?

To add Express.js response timeout with Node.js, we use the connect-timeout module.

For instance, we write

const timeout = require("connect-timeout");

const haltOnTimedout = (req, res, next) => {
  if (!req.timedout) {
    next();
  }
};

app.use(timeout(120000));
app.use(haltOnTimedout);

to add the halfOnTimedout function.

In it, we check if the request timed out with req.timedout.

If it’s false, then we call next to call the next middleware.

Then we call app.use to add the timeout middleware to make requests time out after 120000ms.

And we call app.use again to add the haltOnTimedout middleware.