Add URLSessionTaskDelegate parameter to WordPressAPI
#1042
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crazytonyli
commented
Nov 26, 2025
| platforms: [ | ||
| .iOS(.v16), | ||
| .macOS(.v12), | ||
| .macOS(.v13), |
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Some URLSessionTaskDelegate API is available on macOS 13. Bump this minimal macOS version to reduce a couple of if #available checks.
crazytonyli
commented
Nov 26, 2025
| totalBytesSent: totalBytesSent, | ||
| totalBytesExpectedToSend: totalBytesExpectedToSend | ||
| ) | ||
| #endif |
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You'll see many similar code below, where we have two branches that call functions on Linux and Apple platforms. The difference is the .urlSession?(...) part. URLSessionTaskDelegate API is different on Linux and Apple platforms, because having optional functions in protocols is only available on Objective-C.
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The consumer can now pass a
URLSessionTaskDelegateinstance to get notified of URLSession tasks that the Rust library sends.At the moment, only a subset of
URLSessionTaskDelegateandURLSessionDataDelegatefunctions will be called on the new parameter.In the implementation, I had to stop using the async functions like
await data(for: request, delegate: ...), and manually implement an async function using thedataTask(...)API. That's because the URLSession does not call thedelegate's task result functions (didReceiveData,didReceiveResponse,didCompleteWithError), when the caller uses an API that returns the HTTP response. To make sure all the functions in the newnotifyingDelegate: URLSessionTaskDelegateparameter get called, we had to manually workaround the URLSession constraints. Additionally, theasync data(for: request, delegate: ...)API is not available API. If we want to support the new feature across all platforms, we have to implement the async API ourselves.