subscriptions

问题 Does the AppStore send out a transaction when it auto-renews an auto-renewable subscription? If so, can it reliably be detected by an App the next time the App loads if it sets itself as an observer: [[SKPaymentQueue defaultQueue] addTransactionObserver:self]; Will the new auto-renewed transaction make a call to: -(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions with transaction.transactionState==SKPaymentTransactionStatePurchased? If so, great. If not,

问题 I'm creating a service which allows users to register on any number of devices (web, Android, Roku, iOS, Apple TV), and then purchase a monthly subscription to watch video content. The subscription provides access to the entire catalog. I have my own subscription management API running on a server which I'd like to leverage as the source of truth so users can purchase a subscription on their iPad, login to the app on Roku, and continue watching where they left off. Basically, Netflix. Here

问题 I have seen ActionCable.server.open_connections_statistics , ActionCable.server.connections.length , ActionCable.server.connections.map(&:statistics) , ActionCable.server.connections.select(&:beat).count and the like, however this is only "per process" (server, console, server worker, et cetera). How do I find out everyone who is subscribed to ActionCable at this time? This should return the same value on any Rails process in each environment (development, staging, production). So for example

问题 I need to refresh the data in a component page in an interval. Also I need to refresh the data after doing some action. I am using Obeservables in the service so that I can subscribe to when the response is ready. I am pushing the subscriptions to a object so that I can clear that on ngDestroy , I think, I have the following methods to achieve the same. Method 1 : setInterval I have set an interval on ngOnInit , which will call the refreshData in equal interval. The interval object will be