kotlinx-serialization-core/kotlinx.serialization/MissingFieldException

MissingFieldException

@ExperimentalSerializationApi
class MissingFieldException(missingFields: List<String>, message: String?, cause: Throwable?) : SerializationException

Thrown when KSerializer did not receive a non-optional property from CompositeDecoder and CompositeDecoder.decodeElementIndex had already returned CompositeDecoder.DECODE_DONE.

MissingFieldException is thrown on missing field from all auto-generated serializers and it is recommended to throw this exception from user-defined serializers.

See also

Constructors

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constructor(missingFields: List<String>, serialName: String)

Creates an instance of MissingFieldException for the given missingFields and serialName of the corresponding serializer.

constructor(missingField: String, serialName: String)

Creates an instance of MissingFieldException for the given missingField and serialName of the corresponding serializer.

constructor(missingFields: List<String>, message: String?, cause: Throwable?)

Properties

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open val cause: Throwable?
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open val message: String?
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val missingFields: List<String>

List of fields that were required but not found during deserialization. Contains at least one element.