Additional Notes
Why does adding fields to a JSON API matter in practice?
Track: Java
Topic: HTTP JSON APIs
Focus: API Versioning
Java: API Versioning
Answer
Adding fields is usually non-breaking. Frame the concept in practical terms so you can explain it during interview discussion.
When you add a new field to a JSON API response, clients that don't rely on this field will continue to function unaffected. This is considered a backward-compatible change. For instance, if a shipping API adds a 'deliveryEstimate' field, older clients will ignore this new field as long as they were not programmed to use it.
When you add a new field to a JSON API response, clients that don't rely on this field will continue to function unaffected. This is considered a backward-compatible change. For instance, if a shipping API adds a 'deliveryEstimate' field, older clients will ignore this new field as long as they were not programmed to use it.
Topics: API Versioning HTTP JSON APIs Java