Backend
Express.js
A minimal and flexible Node.js web framework for building APIs and web applications.
Why it matters
- Simple and unopinionated framework
- Large middleware ecosystem
- De facto standard for Node.js web apps
When to use
- When building REST APIs with Node.js
- When you need flexibility in architecture
- For simple to medium complexity backends
Common mistakes
- Not implementing proper error handling middleware
- Mixing concerns in route handlers
- Not validating and sanitizing inputs
Related terms
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