API Design · Senior · Question 71 of 75

What is a schema registry used for in event-driven APIs (e.g. with Kafka)?

✓Correct answer: Storing versioned event schemas and enforcing compatibility rules (backward, forward) so producers can't publish breaking changes
2Registering API keys
3Storing database backups

Explanation

Consumers can read any version they know; the registry rejects incompatible schema changes at publish time.

Further reading

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