error-node

router.all('/incaseoferror', async(req, res, next) => {


    const promise = await new Promise(function (resolve, reject) {
        setTimeout(function () {
            reject(new Error('this is a test err'));
        }, 3000);
    });

  //  throw new Error('test error');
});

function clientErrorHandler(err, req, res, next) {

    console.log('in clientErrorHandler', err);
//but not catch the promise error!

});

process.on('uncaughtException', function (error) {

    // the error is catch here..
});