How can I catch client error event?

[GwangIl-Park]

Can I catch client error event like POST, PUT, etc?

I should catch client error like timeout, disconnect.

So I tried like below in log middleware.

req.on("error", (error:Error) => {
      logger.error("Request Error : ", error);  
    });

With GET method, it worked

Error: aborted
at connResetException (node:internal/errors:704:14)
at abortIncoming (node:_http_server:625:17)
at socketOnClose (node:_http_server:619:3)
at Socket.emit (node:events:525:35)
at TCP.<anonymous> (node:net:757:14)

But with other method, it did not work..

This is my testcode in server. For test with timeout, I use sleep.

this.router.post(`/test`, async(req:Request,res:Response)=>{
      await sleep(100)
      res.status(200).send()
    });

I'm using express 4.18 and node version 18

[AtilMohAmine]

Here's an example of how you can configure timeout handling for your routes in Express:

// Middleware to handle timeouts
app.use((req, res, next) => {
  req.setTimeout(5000, () => {
    const error = new Error('Request Timeout');
    error.status = 408; // Request Timeout
    next(error);
  });
  next();
});

// Your test route
app.post('/test', async (req: Request, res: Response) => {
  // Simulating delay
  await sleep(6000);
  res.status(200).send();
});

// Error handling middleware
app.use((err, req, res, next) => {
  if (res.headersSent) {
    return next(err);
  }

  logger.error('Request Error:', err);
  res.status(err.status || 500).json({ error: err.message });
});