Backend & Databases

Wat is middleware in server context?

Middleware voert code uit tussen request en response.

Home/Categorieën/Backend & Databases/Wat is middleware in server context?

Middleware uses

Logging requests Authentication Validation Error handling

Code Voorbeelden

JAVASCRIPTExpress middleware
app.use((req, res, next) => {
  console.log(`${req.method} ${req.path}`);
  next();
});

// Error handling middleware
app.use((err, req, res, next) => {
  console.error(err);
  res.status(500).json({ error: err.message });
});

Relevante trefwoorden

middlewareloggingvalidation