Open santoso8118 opened 2 months ago
Thanks for opening the issue. Our team will look into the issue and provide update.
@harsh62 Could you check why Amplify.API.subscribe returns connecting state and never returns connected state ?
Hi @santoso8118, do you have any verbose logs we can investigate to see what is happening? Do you have Amplify.Logging.logLevel = .verbose
set?
Thanks @lawmicha I will set log level and update to you
Hi @lawmicha This is the log when the issue happen its failed to subscribe and returns timeout error Could you help to check what is the issue
[APIAppSyncRealTimeClient] [AppSyncRealTimeClient] Received subscription request id: 13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9, query: {"variables":{"userId":"12fc012c-1893-4b2e-886e-9f9601bc974d"},"query":"subscription RefreshMockEvent($userId: String!) {\n refreshMockEvent(userId: $userId) {\n __typename\n userId\n eventType\n message\n distance\n chargeAmount\n detailMessage\n data\n }\n}"}
2024-08-27 10:38:25.598221+0800 [APIAppSyncRealTimeSubscription] [AppSyncRealTimeSubscription-13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9] Start subscribing
10:38:25.598 AM 💚 DEBUG AppSync.subscribeToMockObuEvent():237 - Subscription subscribeToMockObuEvent connect state is connecting
10:38:25.598 AM 💚 DEBUG AppSync.subscribeToMockObuEvent():237 - Subscription subscribeToMockObuEvent connect state is connecting
10:38:25.599 AM 💚 DEBUG AppSync.subscribeToMockObuEvent():237 - Subscription subscribeToMockObuEvent connect state is connecting
2024-08-27 10:38:25.600461+0800 [WebSocketClient] [WebSocketClient] WebSocket write message string: {"type":"start","id":"13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9","payload":{"data":"{\"variables\":{\"userId\":\"12fc012c-1893-4b2e-886e-9f9601bc974d\"},\"query\":\"subscription RefreshMockEvent($userId: String!) {\\n refreshMockEvent(userId: $userId) {\\n __typename\\n userId\\n eventType\\n message\\n distance\\n chargeAmount\\n detailMessage\\n data\\n }\\n}\"}","extensions":{"authorization":{"host":"hsjyntfl6vfxfcbya6rr2mi2p4.appsync-api.ap-southeast-1.amazonaws.com","Authorization":"eyJraWQiOiJYTm9rMU5PNnd5VmxWbkdcL0Vib1wveUhkY3Y4VTREcHpRYjBVWjJrWnpwWDA9IiwiYWxnIjoiUlMyNTYifQ.eyJzdWIiOiIxMmZjMDEyYy0xODkzLTRiMmUtODg2ZS05Zjk2MDFiYzk3NGQiLCJjb2duaXRvOmdyb3VwcyI6WyJhcC1zb3V0aGVhc3QtMV9LakdEWHRlUHFfU2lnbkluV2l0aEFwcGxlIl0sImlzcyI6Imh0dHBzOlwvXC9jb2duaXRvLWlkcC5hcC1zb3V0aGVhc3QtMS5hbWF6b25hd3MuY29tXC9hcC1zb3V0aGVhc3QtMV9LakdEWHRlUHEiLCJ2ZXJzaW9uIjoyLCJjbGllbnRfaWQiOiIzb2t2dTY2MGNmbWRmZ2JmYzI4M2gwMzJhbiIsInRva2VuX3VzZSI6ImFjY2VzcyIsInNjb3BlIjoiYXdzLmNvZ25pdG8uc2lnbmluLnVzZXIuYWRtaW4gb3BlbmlkIHByb2ZpbGUiLCJhdXRoX3RpbWUiOjE3MjQ3MjYxOTMsImV4cCI6MTcyNDgxMjU5MywiaWF0IjoxNzI0NzI2MTkzLCJqdGkiOiIwZjQ0YWE0My01MmZhLTRjNzktODViMS0xOGJhMTg5YjQ1ZWUiLCJ1c2VybmFtZSI6InNpZ25pbndpdGhhcHBsZV8wMDEyNTcuNTc2MzdlZmEwMDg1NDhkNzhjNjQ2NzIyMTM5N2E1OTQuMTAwMyJ9.zMhv03jBqgV_VIHjIttiNPMi3o4bbLL7Ht50YmvfGR8Tk7O4TMmDMHvY3m2O2GkldRJRSnFy6Ogotxbi-cppM_E67NeTfuYcZzlWyqFgVPiMCoWWO7oMTbHGzxmEm2h-eWlnZjGlUTrdGEclx9hB9GVjm1hj6L_4mfjGdqcpNIwJe71oEf4W5mRbNLD6V4kCNX4ajtbSLKEYyrtJXjG0Y88tFaj013qLPj2t5XNdNZwIrqDnps6a99nZ0FNUVaMnTxSh_jGLq6Tc1kuxM5FzjDBiVbIWBg4ItiS3Ir-RJ1lAPCKSkXNB26dYcBRXpKMcp-PMJFqurkH9eKeZvHrGow"}}}}
2024-08-27 10:38:25.609249+0800 [APIAppSyncRealTimeClient] [AppSyncRealTimeClient]Failed to send AppSync request start(AWSAPIPlugin.AppSyncRealTimeRequest.StartRequest(id: "13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9", data: "{\"variables\":{\"userId\":\"12fc012c-1893-4b2e-886e-9f9601bc974d\"},\"query\":\"subscription RefreshMockEvent($userId: String!) {\\n refreshMockEvent(userId: $userId) {\\n __typename\\n userId\\n eventType\\n message\\n distance\\n chargeAmount\\n detailMessage\\n data\\n }\\n}\"}", auth: nil)), error: Error Domain=kNWErrorDomainPOSIX Code=53 "Software caused connection abort" UserInfo={NSDescription=Software caused connection abort}
2024-08-27 10:38:30.600763+0800 [APIAppSyncRealTimeSubscription] [AppSyncRealTimeSubscription-13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9] Failed to subscribe, error: timeout
@lawmicha This seems to be related to https://github.com/aws-amplify/amplify-swift/issues/3632 @santoso8118 and i have noticed that this happens when moving the app to background and foreground.
The app sync subscription is unable to recover after it disconnects when app is in background.
Even after upgrading to 2.37.0 we still see the error. However now we receive the following error in addition in log in 2.37.0:
Amplify.APIError error 3.
Hi @AnirudhWinimy / @santoso8118 , from my understanding, the changes made by @5d (please chime in if I'm wrong here) in https://github.com/aws-amplify/amplify-swift/pull/3800 for https://github.com/aws-amplify/amplify-swift/issues/3632 released in 2.37.0 will propagate the connection lost error back to the caller.
The APIError has an error description, recovery suggestion, and optional underlying error. In the PR, we are returning APIError.networkError with an underlying error of URLError(.networkConnectionLost)
code line 411. Is this what you are getting when you reproduce the scenario of backgrounding to foregrounding? If so, you can check if the underlying error is the URLError networkConnectionLost and perform subscribe to retry connecting to websocket and establishing the subscription.
Hi @lawmicha :
When the error happens we try to perform subscription again its always got failed with the same error. Base on the timing that SDK give log error timeout, its not a timeout actually. It seems the subscription get timeout immediately when I call subscribe again.
By the way could you tell me how long subscription get timeout if can not connect to server ?
@lawmicha
When the error happens we try to perform subscription again its always got failed with the same error. Base on the timing that SDK give log error timeout, its not a timeout actually. It seems the subscription get timeout immediately when I call subscribe again.
By the way could you tell me how long subscription get timeout if can not connect to server ?
To elaborate further, your suggestion works when we downgrade to version 2.28.0, i.e we can re-subscribe when the app is back to the foreground.
However since upgrading to 2.33.3 (and even on 2.37.0) whenever the app goes to the background and returns to the foreground, calling re-subscribe consistently fails with a network timeout error almost immediately. In reality there is no connection error and any mutations sent works.
The error lines when attempting to re-subscribe are shared in https://github.com/aws-amplify/amplify-swift/issues/3831#issuecomment-2311473235
2024-08-27 10:38:25.609249+0800 [APIAppSyncRealTimeClient] [AppSyncRealTimeClient]Failed to send AppSync request start(AWSAPIPlugin.AppSyncRealTimeRequest.StartRequest(id: "13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9", data: "{\"variables\":{\"userId\":\"12fc012c-1893-4b2e-886e-9f9601bc974d\"},\"query\":\"subscription RefreshMockEvent($userId: String!) {\\n refreshMockEvent(userId: $userId) {\\n __typename\\n userId\\n eventType\\n message\\n distance\\n chargeAmount\\n detailMessage\\n data\\n }\\n}\"}", auth: nil)), error: Error Domain=kNWErrorDomainPOSIX Code=53 "Software caused connection abort" UserInfo={NSDescription=Software caused connection abort}
2024-08-27 10:38:30.600763+0800 [APIAppSyncRealTimeSubscription] [AppSyncRealTimeSubscription-13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9] Failed to subscribe, error: timeout
Hi @lawmicha This is the log when the issue happen its failed to subscribe and returns timeout error Could you help to check what is the issue
[APIAppSyncRealTimeClient] [AppSyncRealTimeClient] Received subscription request id: 13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9, query: {"variables":{"userId":"12fc012c-1893-4b2e-886e-9f9601bc974d"},"query":"subscription RefreshMockEvent($userId: String!) {\n refreshMockEvent(userId: $userId) {\n __typename\n userId\n eventType\n message\n distance\n chargeAmount\n detailMessage\n data\n }\n}"} 2024-08-27 10:38:25.598221+0800 [APIAppSyncRealTimeSubscription] [AppSyncRealTimeSubscription-13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9] Start subscribing 10:38:25.598 AM 💚 DEBUG AppSync.subscribeToMockObuEvent():237 - Subscription subscribeToMockObuEvent connect state is connecting 10:38:25.598 AM 💚 DEBUG AppSync.subscribeToMockObuEvent():237 - Subscription subscribeToMockObuEvent connect state is connecting 10:38:25.599 AM 💚 DEBUG AppSync.subscribeToMockObuEvent():237 - Subscription subscribeToMockObuEvent connect state is connecting 2024-08-27 10:38:25.600461+0800 [WebSocketClient] [WebSocketClient] WebSocket write message string: {"type":"start","id":"13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9","payload":{"data":"{\"variables\":{\"userId\":\"12fc012c-1893-4b2e-886e-9f9601bc974d\"},\"query\":\"subscription RefreshMockEvent($userId: String!) {\\n refreshMockEvent(userId: $userId) {\\n __typename\\n userId\\n eventType\\n message\\n distance\\n chargeAmount\\n detailMessage\\n data\\n }\\n}\"}","extensions":{"authorization":{"host":"hsjyntfl6vfxfcbya6rr2mi2p4.appsync-api.ap-southeast-1.amazonaws.com","Authorization":"eyJraWQiOiJYTm9rMU5PNnd5VmxWbkdcL0Vib1wveUhkY3Y4VTREcHpRYjBVWjJrWnpwWDA9IiwiYWxnIjoiUlMyNTYifQ.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.zMhv03jBqgV_VIHjIttiNPMi3o4bbLL7Ht50YmvfGR8Tk7O4TMmDMHvY3m2O2GkldRJRSnFy6Ogotxbi-cppM_E67NeTfuYcZzlWyqFgVPiMCoWWO7oMTbHGzxmEm2h-eWlnZjGlUTrdGEclx9hB9GVjm1hj6L_4mfjGdqcpNIwJe71oEf4W5mRbNLD6V4kCNX4ajtbSLKEYyrtJXjG0Y88tFaj013qLPj2t5XNdNZwIrqDnps6a99nZ0FNUVaMnTxSh_jGLq6Tc1kuxM5FzjDBiVbIWBg4ItiS3Ir-RJ1lAPCKSkXNB26dYcBRXpKMcp-PMJFqurkH9eKeZvHrGow"}}}} 2024-08-27 10:38:25.609249+0800 [APIAppSyncRealTimeClient] [AppSyncRealTimeClient]Failed to send AppSync request start(AWSAPIPlugin.AppSyncRealTimeRequest.StartRequest(id: "13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9", data: "{\"variables\":{\"userId\":\"12fc012c-1893-4b2e-886e-9f9601bc974d\"},\"query\":\"subscription RefreshMockEvent($userId: String!) {\\n refreshMockEvent(userId: $userId) {\\n __typename\\n userId\\n eventType\\n message\\n distance\\n chargeAmount\\n detailMessage\\n data\\n }\\n}\"}", auth: nil)), error: Error Domain=kNWErrorDomainPOSIX Code=53 "Software caused connection abort" UserInfo={NSDescription=Software caused connection abort} 2024-08-27 10:38:30.600763+0800 [APIAppSyncRealTimeSubscription] [AppSyncRealTimeSubscription-13BCE33A-4FAB-4488-B36A-DE17EDFDDDA9] Failed to subscribe, error: timeout
Hi @santoso8118
According to the log, the websocket encountered a kernel-level error: kNWErrorDomainPOSIX with code 53, indicating "Software caused connection abort." This error typically occurs when the application is moved to the background.
The subscription timeout error happens 5 seconds after the request is sent, which is expected behavior since we’ve set a default 5-second timeout for a connected websocket to receive a response from the server.
To better understand the complete testing scenario, could you provide the full log from when you reproduce this issue? This additional information would help us gain a more comprehensive view of the problem and its context.
ref:
Describe the bug
When user login to our app We config Amplify with below configurations:
In the first time install app and open app then login successfully then we call Amplify.API.subscribe to our subscription but I only got failed connection and we can not receive any datas from server, the states as below:
As normal connection states should be as below:
The issue only happen for the first time subcribe. In the second time we successfully connect and get data After relaunch the app and we try Amplify.API.subscribe again, all subscriptions are working fine.
Steps To Reproduce
Expected behavior
Amplify.API.subscribe should always connect successfully even the very first time
Amplify Framework Version
2.33.3
Amplify Categories
API
Dependency manager
Swift PM
Swift version
5.10
CLI version
12.12.4
Xcode version
15.2
Relevant log output