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Instance Method

unwrap(or:)

Unwraps an Optional value contained inside a Future’s expectation. If the optional resolves to nil (.none), the supplied error will be thrown instead.
func unwrap(or error: @autoclosure @escaping @Sendable () -> any Error) -> EventLoopFuture<Value.WrappedType>

Parameters

error

Error to throw if the value is nil. This is captured with @autoclosure to avoid initialize the Error unless needed.

Discussion

print(futureString) // Future<String?>
futureString.unwrap(or: MyError()) // Future<String>