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Call WebApplication.CreateBuilder(args) only once #34492

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merged 5 commits into from
Jan 21, 2025
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Call WebApplication.CreateBuilder(args) only once #34492

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Call WebApplication.CreateBuilder(args) only once
tdykstra Jan 14, 2025
c74f324
Fix casing and punctuation in important note
tdykstra Jan 14, 2025
5f6106f
Update aspnetcore/fundamentals/configuration/index.md
tdykstra Jan 16, 2025
73b176a
Update aspnetcore/fundamentals/configuration/index.md
tdykstra Jan 20, 2025
b5872ae
Add comment -- delete this note in .NET 10 version of the doc.
tdykstra Jan 21, 2025
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3 changes: 3 additions & 0 deletions aspnetcore/fundamentals/configuration/index.md
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Expand Up @@ -59,6 +59,9 @@ var builder = WebApplication.CreateBuilder(args);
1. [appsettings.json](#appsettingsjson) using the [JSON configuration provider](#jcp).
1. A fallback to the host configuration described in the [next section](#host).

> [!IMPORTANT]
> While this article mentions `WebApplication.CreateBuilder(args)` many times, application code should call this method only once. For more information, see [this IIS Support blog post](https://techcommunity.microsoft.com/blog/iis-support-blog/asp-net-core-503-server-has-been-shutdown/3830338).

<a name="host"></a>

### Default host configuration sources
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