I have a problem where I want to return a error (if there is one) and then print it.
I have a main.js file with:
const webserver = require('./webserver.js');
webserver.start();
//Here i want to print the error if there is one
and a module named webserver.js:
var webserver = {
start: async function () {
let serv = server.listen('a', () => { //<- "a" would give an error
console.log(`Listening at http://localhost:${port}`)
}).on('error', function (err) {
return {'num': 403,'err': err}; //<- this doesn't work
});
}
}
module.exports = webserver;
How do I have to change my code so that I can return the error if there is one and receive it in my main.js file?
Solved it like this:
start: function () {
return new Promise((respond, reject) => {
serv = server.listen(config.port, () => {
console.log(`Listening at http://localhost:${port}`)
}).on('error', function (err) {
respond({
'num': 403,
'err': err
});
});
})
}