A yayin haɓaka aikace-aikacen, sarrafa kuskure shine muhimmin al'amari don tabbatar da ƙwarewar mai amfani mai santsi da rage matsalolin da ba a zata ba. A cikin Express.js mahalli, kuna da hanyoyi da yawa don magance kurakurai da samar da saƙon amsa masu dacewa ga masu amfani. Ga jagora kan yadda ake cimma wannan:
Amfani Middleware don Gudanar da Kuskuren Duniya
Ƙirƙirar sarrafa kuskuren duniya middleware ta ƙara lambar mai zuwa a ƙarshen app.js ko babban fayil ɗin Express.js aikace-aikacenku.
app.use((err, req, res, next) => {
console.error(err.stack);
res.status(500).send('Something went wrong!');
});
Gudanar da Kurakurai don Musamman Route
A cikin takamaiman route, zaku iya amfani da try block catch don kama kurakurai da samar da saƙon amsa da suka dace.
app.get('/profile/:id', async(req, res) => {
try {
const user = await getUserById(req.params.id);
res.json(user);
} catch(error) {
res.status(404).send('User not found!');
}
});
Amfani da Kuskure Tsakanin Middleware
Ƙirƙirar kuskuren tsakiya middleware don ɗaukar kurakuran da suka samo asali daga route.
app.use((req, res, next) => {
const error = new Error('Not found');
error.status = 404;
next(error);
});
app.use((err, req, res, next) => {
res.status(err.status || 500);
res.send(err.message || 'Something went wrong');
});
Magance Kurakurai Asynchronous
A cikin yanayin sarrafa asynchronous, yi amfani da next hanyar don ƙaddamar da kurakurai zuwa sarrafa kuskuren duniya middleware.
app.get('/data',(req, res, next) => {
fetchDataFromDatabase((err, data) => {
if(err) {
return next(err);
}
res.json(data);
});
});
Kammalawa
Gudanar da kuskure wani muhimmin sashi ne na Express.js haɓaka aikace-aikacen. Ta amfani da middleware, sarrafa takamaiman kurakurai, da samar da saƙon amsa da suka dace, zaku iya ƙirƙirar ingantaccen ƙwarewar aikace-aikace don masu amfani da ku.