Open
Description
Description
I'll preface this by saying that I am using the Firebase emulator. I am also running this code in a unit test that is not running inside the context of an app.
I'm running into a problem when attempting to upload files to Storage using the iOS API. When I run this code:
// `zipFile` is a URL for a file that exists locally in a temp directory
let fileRef = cloudStorageRoot.child("test.zip")
let _ = try await fileRef.putFileAsync(from: zipFile)I get the following error:
Task <6EBDD3A8-E1A0-4584-ABAB-0E5E5DBA78F3>.<1> finished with error [-1] Error Domain=NSURLErrorDomain Code=-1 "unknown error" UserInfo={NSErrorFailingURLStringKey=http://127.0.0.1:9199/v0/b/abc-xyz-123.storage.firebase.com/o?name=test.zip&upload_id=b5345624-594c-4007-8267-e42bcbeb0dfa&upload_protocol=resumable, NSErrorFailingURLKey=http://127.0.0.1:9199/v0/b/abc-xyz-123.storage.firebase.com/o?name=test.zip&upload_id=b5345624-594c-4007-8267-e42bcbeb0dfa&upload_protocol=resumable, _NSURLErrorRelatedURLSessionTaskErrorKey=(
"BackgroundUploadTask <6EBDD3A8-E1A0-4584-ABAB-0E5E5DBA78F3>.<1>"
), _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundUploadTask <6EBDD3A8-E1A0-4584-ABAB-0E5E5DBA78F3>.<1>, NSLocalizedDescription=unknown error}
I also see numerous copies of the following error:
BackgroundSession <633A02F2-A4F3-4509-B711-D103AD425ABA> an error occurred on the xpc connection to setup the background session: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.nsurlsessiond" UserInfo={NSDebugDescription=connection to service named com.apple.nsurlsessiond}
BackgroundSession <633A02F2-A4F3-4509-B711-D103AD425ABA> failed to create a background NSURLSessionUploadTask, as remote session is unavailable
However, if I change putFile to putData (and leave everything else exactly the same), the upload succeeds:
let fileRef = cloudStorageRoot.child("test.zip")
let zipData = try Data(contentsOf: zipFile)
let _ = try await fileRef.putDataAsync(zipData)Based on this post from the Apple dev forums, it seems that the problem might be that the SDK is using URLSession background sessions, which do not work outside the context of an app.
Would it be possible for the SDK to detect if it fails to create a background URLSession, and fallback to a normal session in that case? Or is there some way I can force it to use a regular session while running in unit tests?
Reproducing the issue
No response
Firebase SDK Version
11.7
Xcode Version
16.2
Installation Method
Swift Package Manager
Firebase Product(s)
Storage
Targeted Platforms
iOS
Relevant Log Output
If using Swift Package Manager, the project's Package.resolved
Expand Package.resolved snippet
{
"originHash" : "8088edbf6bbac4606f7ec39fe23eed55b8f3b94c21bd94e9a78194551b46f8c8",
"pins" : [
{
"identity" : "abseil-cpp-binary",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/abseil-cpp-binary.git",
"state" : {
"revision" : "194a6706acbd25e4ef639bcaddea16e8758a3e27",
"version" : "1.2024011602.0"
}
},
{
"identity" : "app-check",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/app-check.git",
"state" : {
"revision" : "61b85103a1aeed8218f17c794687781505fbbef5",
"version" : "11.2.0"
}
},
{
"identity" : "cocoalumberjack",
"kind" : "remoteSourceControl",
"location" : "https://github.com/CocoaLumberjack/CocoaLumberjack.git",
"state" : {
"revision" : "4b8714a7fb84d42393314ce897127b3939885ec3",
"version" : "3.8.5"
}
},
{
"identity" : "firebase-ios-sdk",
"kind" : "remoteSourceControl",
"location" : "https://github.com/firebase/firebase-ios-sdk.git",
"state" : {
"revision" : "0d885d28250fb1196b614bc9455079b75c531f72",
"version" : "11.7.0"
}
},
{
"identity" : "googleappmeasurement",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/GoogleAppMeasurement.git",
"state" : {
"revision" : "be0881ff728eca210ccb628092af400c086abda3",
"version" : "11.7.0"
}
},
{
"identity" : "googledatatransport",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/GoogleDataTransport.git",
"state" : {
"revision" : "617af071af9aa1d6a091d59a202910ac482128f9",
"version" : "10.1.0"
}
},
{
"identity" : "googleutilities",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/GoogleUtilities.git",
"state" : {
"revision" : "53156c7ec267db846e6b64c9f4c4e31ba4cf75eb",
"version" : "8.0.2"
}
},
{
"identity" : "grpc-binary",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/grpc-binary.git",
"state" : {
"revision" : "f56d8fc3162de9a498377c7b6cea43431f4f5083",
"version" : "1.65.1"
}
},
{
"identity" : "gtm-session-fetcher",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/gtm-session-fetcher.git",
"state" : {
"revision" : "85b7b231882c3c472b8bda4fb495324d3f19bab6",
"version" : "4.2.0"
}
},
{
"identity" : "interop-ios-for-google-sdks",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/interop-ios-for-google-sdks.git",
"state" : {
"revision" : "2d12673670417654f08f5f90fdd62926dc3a2648",
"version" : "100.0.0"
}
},
{
"identity" : "leveldb",
"kind" : "remoteSourceControl",
"location" : "https://github.com/firebase/leveldb.git",
"state" : {
"revision" : "a0bc79961d7be727d258d33d5a6b2f1023270ba1",
"version" : "1.22.5"
}
},
{
"identity" : "nanopb",
"kind" : "remoteSourceControl",
"location" : "https://github.com/firebase/nanopb.git",
"state" : {
"revision" : "b7e1104502eca3a213b46303391ca4d3bc8ddec1",
"version" : "2.30910.0"
}
},
{
"identity" : "promises",
"kind" : "remoteSourceControl",
"location" : "https://github.com/google/promises.git",
"state" : {
"revision" : "540318ecedd63d883069ae7f1ed811a2df00b6ac",
"version" : "2.4.0"
}
},
{
"identity" : "swift-log",
"kind" : "remoteSourceControl",
"location" : "https://github.com/apple/swift-log",
"state" : {
"revision" : "96a2f8a0fa41e9e09af4585e2724c4e825410b91",
"version" : "1.6.2"
}
},
{
"identity" : "swift-protobuf",
"kind" : "remoteSourceControl",
"location" : "https://github.com/apple/swift-protobuf.git",
"state" : {
"revision" : "ebc7251dd5b37f627c93698e4374084d98409633",
"version" : "1.28.2"
}
},
{
"identity" : "zipfoundation",
"kind" : "remoteSourceControl",
"location" : "https://github.com/weichsel/ZIPFoundation.git",
"state" : {
"revision" : "02b6abe5f6eef7e3cbd5f247c5cc24e246efcfe0",
"version" : "0.9.19"
}
}
],
"version" : 3
}
If using CocoaPods, the project's Podfile.lock
Expand Podfile.lock snippet
Replace this line with the contents of your Podfile.lock!