pause/resume/cancel upload

[huluyige]

Describe the bug
I can't find docs about pause/resume/cancel uploads

Hello I'am studying the storage plugin to test if i can pause/resume uploads like the old sdk, unfortunately I didn't find it. I just find a simple method:

        let dataString = "My Data"
        let fileNameKey = "myFile.txt"
        let filename = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
            .appendingPathComponent(fileNameKey)
        do {
            try dataString.write(to: filename, atomically: true, encoding: String.Encoding.utf8)
        } catch {
            print("Failed to write to file \(error)")
        }

        Amplify.Storage.uploadFile(
            key: fileNameKey,
            local: filename,
            progressListener: { progress in
                print("Progress: \(progress)")
            }, resultListener: { event in
                switch event {
                case let .success(data):
                    print("Completed: \(data)")
                case let .failure(storageError):
                    print("Failed: \(storageError.errorDescription). \(storageError.recoverySuggestion)")
                }
            }
        )

Could you please make it clear if the amplify sdk allows to do these? if yes, Could you provide some samples "?
Thank you !

[lawmicha]

Hi @huluyige, thanks for bring this to our attention. Please take a look at https://github.com/aws-amplify/amplify-ios/blob/main/AmplifyPlugins/Storage/AWSS3StoragePluginFunctionalTests/ResumabilityTests/AWSS3StoragePluginGetDataResumabilityTests.swift and let us know if this works for you.

let operation = Amplify.Storage.downloadData(
            key: key,
            options: nil,
            progressListener: { progress in
           // progress.fractionCompleted 
        }, resultListener: { result in
            switch result {
            case .success:
                print("Success")
            case .failure(let error):
                print("Failed with \(error)")
            }
        })

// pause / resume / cancel
operation.pause()
operation.resume()
operation.cancel()

We'll take a follow up to improve the documentation at https://docs.amplify.aws/lib/storage/upload/q/platform/ios

[lawmicha]

related doc improvements aws-amplify/docs#3290

[huluyige]

Hello @lawmicha thank you for reply. Is there a doc talking about resuming after app restart ? like something amplify.getTasks

[palpatim]

Hi @huluyige,

Amplify doesn't currently support resuming background tasks after app restart. You can see a discussion here and the associated feature request.

[github-actions]

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