Read the full article at :

https://coderlegion.com/7559/tutorial-building-a-net-9-console-app-with-hangfire-and-channels

https://dev.to/stevsharp/tutorial-building-a-net-9-console-app-with-hangfire-and-channels-1g02

CustomerSyncConsole

Overview

CustomerSyncConsole is a .NET 8 console application that demonstrates:

• Polling simulated data
• Using Channels for message passing
• Triggering Hangfire background jobs when conditions are met
• In-memory storage for simplicity

Channels

The application uses System.Threading.Channels to implement a producer-consumer pattern:

• DataPollingService acts as the producer, writing work items into the channel.
• ChannelConsumerService acts as the consumer, reading items and processing them.

Channels provide thread-safe, high-performance communication between background tasks without manual locking or complex queue management.

Hosted Services

The app uses IHostedService implementations (BackgroundService) to run long-running tasks:

• DataPollingService runs periodically to fetch or simulate data.
• ChannelConsumerService continuously listens for new items in the channel.

Hosted services integrate seamlessly with the .NET Generic Host, allowing dependency injection, logging, and graceful shutdown.

Requirements

• .NET 9 SDK
• NuGet packages:
  • Hangfire
  • Hangfire.MemoryStorage
  • Microsoft.Extensions.Hosting
  • Microsoft.Extensions.Logging.Console

How to Run

dotnet restore
dotnet run

How It Works

• DataPollingService simulates fetching data and writes work items to a channel.
• ChannelConsumerService reads from the channel and enqueues Hangfire jobs for CustomerId = 1.
• Hangfire processes jobs in-memory.

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