15 lines
507 B
Swift
15 lines
507 B
Swift
import PromiseKit
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/// Retry the promise constructed in `body` up to `maxRetryCount` times.
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public func attempt<T>(maxRetryCount: UInt, recoveringOn queue: DispatchQueue, body: @escaping () -> Promise<T>) -> Promise<T> {
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var retryCount = 0
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func attempt() -> Promise<T> {
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return body().recover(on: queue) { error -> Promise<T> in
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guard retryCount < maxRetryCount else { throw error }
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retryCount += 1
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return attempt()
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}
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}
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return attempt()
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}
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