swiftuiux/retry-policy-service

SwiftUI example

example for retry service

Packages using the package

Async http client

How to use

final class ViewModel : ObservableObject{
    
    func constant() async {
        let policy = RetryService(strategy: .constant())
        for delay in policy{
            try? await Task.sleep(nanoseconds: delay)
            // do something
        }
    }
    
    func exponential() async {
        let policy = RetryService(
                strategy: .exponential(
                retry: 5, 
                multiplier: 2, 
                duration: .seconds(1), 
                timeout: .seconds(5)
               )
             )
                
        for delay in policy{
            try? await Task.sleep(nanoseconds: delay)
            // do something
        }
    }
}

struct ContentView: View {
    
    @StateObject var model = ViewModel()
    
    var body: some View {
        VStack {
            Button("constatnt") { Task { await model.constant() } }
            Button("exponential") { Task { await model.exponential() } }
        }
        .padding()
        .task {
            await model.exponential()
        }
        
    }
}

TODO:

Exponential backoff with jitter. Jitter adds some amount of randomness to the backoff to spread the retries around in time. For more information Exponential Backoff And Jitter

Package Metadata

Repository: swiftuiux/retry-policy-service

Default branch: main

README: README.md