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Why is it important to handle errors when encoding JSON for a POST request in Swift?

hard📝 Conceptual Q10 of 15
iOS Swift - Networking
Why is it important to handle errors when encoding JSON for a POST request in Swift?
ABecause the server always rejects JSON without errors
BBecause encoding can fail if the data contains invalid types
CBecause encoding automatically fixes invalid data
DBecause errors are ignored by URLSession
Step-by-Step Solution
Solution:
  1. Step 1: Recognize JSON encoding limitations

    JSONSerialization can throw errors if data contains unsupported types like non-string keys.
  2. Step 2: Importance of error handling

    Handling errors prevents crashes and allows graceful failure or recovery.
  3. Final Answer:

    Because encoding can fail if the data contains invalid types -> Option B
  4. Quick Check:

    JSON encoding errors = B [OK]
Quick Trick: Always catch JSON encoding errors to avoid crashes [OK]
Common Mistakes:
  • Assuming encoding never fails
  • Ignoring error handling
  • Thinking server fixes encoding errors

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