iOS Swift - Networking
Which Swift protocol must a struct conform to for using a custom decoder configuration?
Which Swift protocol must a struct conform to for using a custom decoder configuration?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the protocol for decoding JSON
TheDecodableprotocol allows a struct to be created from JSON data.Step 2: Differentiate from related protocols
Encodableis for encoding,Codablecombines both, but custom decoding specifically requiresDecodable.Final Answer:
Decodable -> Option BQuick Check:
Custom decoder configuration requires Decodable [OK]
Quick Trick: Use Decodable to decode JSON into Swift structs [OK]
Common Mistakes:
- Choosing Codable when only decoding is needed
- Confusing with Encodable which is for encoding
- Selecting unrelated protocols like ObservableObject
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