Microsoft.Orleans.Reminders.AzureStorage 9.2.0-preview2

Microsoft Orleans Reminders for Azure Storage

Introduction

Microsoft Orleans Reminders for Azure Storage provides persistence for Orleans reminders using Azure Table Storage. This allows your Orleans applications to schedule persistent reminders that will be triggered even after silo restarts or grain deactivation.

Getting Started

To use this package, install it via NuGet:

dotnet add package Microsoft.Orleans.Reminders.AzureStorage

Example - Configuring Azure Storage Reminders

using Microsoft.Extensions.Hosting;
using Orleans.Configuration;
using Orleans.Hosting;

var builder = Host.CreateApplicationBuilder(args)
    .UseOrleans(siloBuilder =>
    {
        siloBuilder
            .UseLocalhostClustering()
            // Configure Azure Table Storage as reminder storage
            .UseAzureTableReminderService(options =>
            {
                options.ConnectionString = "YOUR_AZURE_STORAGE_CONNECTION_STRING";
                options.TableName = "OrleansReminders";
            });
    });

// Run the host
await builder.RunAsync();

Example - Using Reminders in a Grain

public interface IReminderGrain
{
    Task StartReminder(string reminderName);
    Task StopReminder();
}

public class ReminderGrain : Grain, IReminderGrain, IRemindable
{
    private string _reminderName = "MyReminder";

    public async Task StartReminder(string reminderName)
    {
        _reminderName = reminderName;
        
        // Register a persistent reminder
        await RegisterOrUpdateReminder(
            reminderName,
            TimeSpan.FromMinutes(2),  // Time to delay before the first tick (must be > 1 minute)
            TimeSpan.FromMinutes(5)); // Period of the reminder (must be > 1 minute)
    }

    public async Task StopReminder()
    {
        // Find and unregister the reminder
        var reminder = await GetReminder(_reminderName);
        if (reminder != null)
        {
            await UnregisterReminder(reminder);
        }
    }

    public Task ReceiveReminder(string reminderName, TickStatus status)
    {
        // This method is called when the reminder ticks
        Console.WriteLine($"Reminder {reminderName} triggered at {DateTime.UtcNow}. Status: {status}");
        return Task.CompletedTask;
    }
}

Documentation

For more comprehensive documentation, please refer to:

Feedback & Contributing

Showing the top 20 packages that depend on Microsoft.Orleans.Reminders.AzureStorage.

Packages Downloads
Microsoft.Orleans.OrleansAzureUtils
Support library for hosting Orleans on Microsoft Azure.
2
Microsoft.Orleans.OrleansAzureUtils
Support library for hosting Orleans on Microsoft Azure.
1

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