Listen to auth events

AWS Cognito Auth Plugin sends important events through Amplify Hub.

1Amplify.Hub.subscribe(HubChannel.AUTH,
2    hubEvent -> {
3        if (hubEvent.getName().equals(InitializationStatus.SUCCEEDED.name())) {
4            Log.i("AuthQuickstart", "Auth successfully initialized");
5        } else if (hubEvent.getName().equals(InitializationStatus.FAILED.name())){
6            Log.i("AuthQuickstart", "Auth failed to succeed");
7        } else {
8            String eventName = hubEvent.getName();
9            if (eventName.equals(SIGNED_IN.name())) {
10                Log.i("AuthQuickstart", "Auth just became signed in.");
11            }
12            else if (eventName.equals(SIGNED_OUT.name())) {
13                Log.i("AuthQuickstart", "Auth just became signed out.");
14            }
15            else if (eventName.equals(SESSION_EXPIRED.name())) {
16                Log.i("AuthQuickstart", "Auth session just expired.");
17            }
18            else if (eventName.equals(USER_DELETED.name())) {
19                Log.i("AuthQuickstart", "User has been deleted.");
20            }
21            else {
22                Log.w("AuthQuickstart", "Unhandled Auth Event: " + eventName);
23            }
24        }
25    }
26);

1Amplify.Hub.subscribe(HubChannel.AUTH) { event ->
2    when (event.name) {
3        InitializationStatus.SUCCEEDED.name ->
4            Log.i("AuthQuickstart", "Auth successfully initialized")
5        InitializationStatus.FAILED.name ->
6            Log.i("AuthQuickstart", "Auth failed to succeed")
7        else -> when (event.name) {
8            AuthChannelEventName.SIGNED_IN.name ->
9                Log.i("AuthQuickstart", "Auth just became signed in")
10            AuthChannelEventName.SIGNED_OUT.name ->
11                Log.i("AuthQuickstart", "Auth just became signed out")
12            AuthChannelEventName.SESSION_EXPIRED.name ->
13                Log.i("AuthQuickstart", "Auth session just expired")
14            AuthChannelEventName.USER_DELETED.name ->
15                Log.i("AuthQuickstart", "User has been deleted")
16            else ->
17                Log.w("AuthQuickstart", "Unhandled Auth Event: ${event.name}")
18        }
19    }
20}

1Amplify.Hub.subscribe(HubChannel.AUTH).collect {
2    when (it.name) {
3        InitializationStatus.SUCCEEDED.name ->
4            Log.i("AuthQuickstart", "Auth successfully initialized")
5        InitializationStatus.FAILED.name ->
6            Log.i("AuthQuickstart", "Auth failed to succeed")
7        else -> when (it.name) {
8            AuthChannelEventName.SIGNED_IN.name ->
9                Log.i("AuthQuickstart", "Auth just became signed in.")
10            AuthChannelEventName.SIGNED_OUT.name ->
11                Log.i("AuthQuickstart", "Auth just became signed out.")
12            AuthChannelEventName.SESSION_EXPIRED.name ->
13                Log.i("AuthQuickstart", "Auth session just expired.")
14            AuthChannelEventName.USER_DELETED.name ->
15                Log.i("AuthQuickstart", "User has been deleted.")
16            else ->
17                Log.w("AuthQuickstart", "Unhandled Auth Event: ${it.name}")
18        }
19    }
20}

1RxAmplify.Hub.on(HubChannel.AUTH)
2    .map(HubEvent::getName)
3    .subscribe(name -> {
4        if (name.equals(InitializationStatus.SUCCEEDED.name())) {
5            Log.i("AuthQuickstart", "Auth successfully initialized");
6            return;
7        } else if (name.equals(InitializationStatus.FAILED.name())) {
8            Log.i("AuthQuickstart", "Auth failed to succeed");
9            return;
10        } else {
11            if (name.equals(SIGNED_IN.name())) {
12                Log.i("AuthQuickstart", "Auth just became signed in.");
13            }
14            else if (name.equals(SIGNED_OUT.name())) {
15                Log.i("AuthQuickstart", "Auth just became signed out.");
16            }
17            else if (name.equals(SESSION_EXPIRED.name())) {
18                Log.i("AuthQuickstart", "Auth session just expired.");
19            }
20            else if (name.equals(USER_DELETED.name())) {
21                Log.i("AuthQuickstart", "User has been deleted.");
22            }
23            else {
24                Log.w("AuthQuickstart", "Unhandled Auth Event: " + hubEvent.getName());
25            }
26        }
27    });

Override Amplify-generated Cognito resources

Use AWS SDK