ResponseTransformer

public protocol ResponseTransformer : CustomDebugStringConvertible

Transforms a response from a less parsed form (e.g. Data) to a more parsed data structure. Responses pass through a chain of transformers before being sent to response hooks or observers.

Warning

Transformers run in a GCD background queue, and must be thread-safe. You’re in the clear if your transformer touches only its input parameters, and those parameters are value types or otherwise exclusively owned.

  • Returns the parsed form of this response, or returns it unchanged if this transformer does not apply.

    Note that a Response can contain either data or an error, so this method can turn success into failure if the response fails to parse.

    Declaration

    Swift

    func process(_ response: Response) -> Response
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  • debugDescription Extension method

    Prints the name of the transformer’s Swift type.

    Declaration

    Swift

    public var debugDescription: String { get }
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  • logTransformation(_:) Extension method

    Helper to log a transformation. Call this in your custom transformer.

    Declaration

    Swift

    public func logTransformation(_ result: Response) -> Response
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