MaxInterview - how to handle all error of all router in express

showing results for - "how to handle all error of all router in express"

19 Sep 2019

1// development error handler
2// will print stacktrace
3if (app.get('env') === 'development') {
4    app.use(function (err, req, res, next) {
5        res.status(err.status || 500);
6        res.render('error.ejs', {
7            message: err.message,
8            error: err
9        });
10    });
11}
12
13// production error handler
14// no stacktraces leaked to user
15app.use(function (err, req, res, next) {
16    res.status(err.status || 500);
17    res.render('error', {
18        message: err.message,
19        error: {}
20    });
21});
22

source

Naelle

16 May 2018

1var router = express.Router();
2
3router.get('/req1', handleErrorAsync(async (req, res, next) => {
4   let result = await someAsyncFunction1();
5   if(result){
6       // res.send whatever
7   }
8}));
9router.post('/req2', handleErrorAsync(async (req, res, next) => {
10    let result = await someAsyncFunction2(req.body.param1);
11    if(result){
12        // res.send whatever
13    }
14}));
15router.post('/req3', handleErrorAsync(async (req, res, next) => {
16    let result = await someAsyncFunction3(req.body.param1, req.body.param2);
17    if(result){
18        // res.send whatever
19    }
20}));
21
22module.exports = router;
23

source

Francesca

03 Mar 2019

1const handleErrorAsync = func => (req, res, next) => {
2    func(req, res, next).catch((error) => next(error));
3};
4

source

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