Krzysztof Zabłocki • 6/10/2020

Adding support for versioning and migration to your Codable models.

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This technical article addresses a limitation of Swift's Codable protocol: the lack of built-in data versioning and migration. It proposes a design using a custom Versionable protocol and VersionableDecoder to enable model evolution. The solution allows developers to define version enumerations and pure migration functions that modify JSON payloads, all while continuing to leverage Codable's automatic synthesis for most use cases.

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#versioning #Swift #Ios Development
Adding support for versioning and migration to your Codable models.

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