The Background on Background Tasks in .NET 6
summary
Demos cover four concrete approaches: IHostedService, BackgroundService, Worker Service, and Hangfire. Example implements a cache refresher backed by Redis and shows that IHostedService blocks startup if awaited, while BackgroundService cancels gracefully and avoids that footgun. Worker Service is the same background logic in a console app (host with systemd or Windows Service). Hangfire persists jobs to SQL Server or Redis, exposes a UI, and does Hangfire retries 10 times with exponential backoff and dead‑lettering; cloud options (Functions, Lambdas, Cloud Scheduler) are listed.
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chapters (13)
- 0:00Background tasks in .NET 6
- 1:03Background tasks use cases
- 8:00IHostedService deep dive
- 15:05IHostedService pros and cons
- 19:22BackgroundService explained
- 26:25When to use BackgroundService
- 29:57WorkerService introduction
- 34:14Hosting WorkerService
- 37:43HangFire overview
- 47:31HangFire features
- 50:43Cloud alternatives
- 55:18Messaging buses vs tasks
- 1:00:34Q&A
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