HTTP JSON APIs · interview question
When adding a new field to a JSON API response, which of the following strategies is the safest for backward compatibility?
Multiple choiceEasychapter-11-curatedpremiumhttp-json-apisapi-versioning
Answer and explanation
Correct answer
D. Add the field without changing the API version.
Why
Adding a new field to a JSON response without removing existing fields ensures backward compatibility because existing clients can ignore the new field without needing code changes.
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