Introduction: Why Connect APIs to Databases?
In Module 1, you built APIs that stored data in arrays. This worked for learning, but had serious limitations:
- Data disappears: When the server restarts, all data is lost.
- No persistence: Users can’t save information between sessions.
- Memory limits: Large datasets can crash your server.
- No sharing: Different server instances can’t share data.
Connecting to a database solves all these problems:
- Persistent storage: Data survives server restarts.
- Scalability: Databases handle millions of records efficiently.
- Concurrent access: Multiple users can access the same data safely.
- Data integrity: Databases help keep data consistent.