Asynchronous timed background task example doesn't follow own guidelines for background service

[antmeehan]

Description

The example for "Asynchronous timed background task" calls DoWork() which blocks before the ExecuteAsync method becomes asynchronous, which goes against the own advice on this page:

No further services are started until ExecuteAsync becomes asynchronous, such as by calling await. Avoid performing long, blocking initialization work in ExecuteAsync. The host blocks in StopAsync(CancellationToken) waiting for ExecuteAsync to complete.

Page URL

https://learn.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-9.0&tabs=visual-studio

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/fundamentals/host/hosted-services.md

Document ID

b2dece1f-15b8-03af-6d52-7cc070432b4b

Article author

@tdykstra

Metadata

• ID: c3460b0d-9c60-3a06-ac63-18cf990e53c3
• PlatformId: 397125bc-12c3-8f36-bb0b-efb01a1e9f43
• Service: aspnet-core
• Sub-service: fundamentals

Related Issues

[Rick-Anderson]

Would you or @huan086 be interested in updating the sample code? We'll take care of the article.

[antmeehan]

I've created dotnet/AspNetCore.Docs.Samples#272 with my suggested changes.