dotnet / dotnet/aspnetcore

Improve async support on the startup path

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#24,142 22 comments 100 reactions 1 assignee Claimed by @davidfowl View on GitHub
affected-most area-hosting area-networking enhancement Needs: Design severity-major
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C#
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Description

There are a few places where we lack async support that result in people making blocking call. These are using during application startup.

- `IAsyncStartupFilter` - https://github.com/dotnet/aspnetcore/issues/5897
- `Startup` (`ConfigureServicesAsync`, `ConfigureAsync`)
- IHostBuilder.Configure*
- `IConfiguration` initial load (keyvault requires an async call)

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