Express.js

[Mercure28]

What is the difference between req.params, req.queryand req.bodyin Express.js?

[TatyOko28]

req.params: Contains the URL parameters defined in the route

app.get('/user/:id', (req, res) => {
    console.log(req.params.id); // ID extrait de l'URL
});

req.query: Contains the parameters sent in the URL after the ?

app.get('/search', (req, res) => {
    console.log(req.query.q); // Recherche par mot-clé
});

req.body: Contains the data sent in the body of the request (POST/PUT).

app.use(express.json());
app.post('/login', (req, res) => {
    console.log(req.body.username); // Extraction du nom d’utilisateur
});