> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/powershell-universal/da/platform/middleware.md).

# Middleware

Tilpas HTTP-anmodninger i PowerShell Universal ved hjælp af middleware-scripts, der ændrer statuskoder, headere og cookies, før hver anmodning fuldføres.

Middleware køres ved hver HTTP-anmodning af PowerShell Universal-serveren. Det giver Dem mulighed for at tilpasse funktioner ved anmodningen som statuskode, headere og cookies.

{% hint style="warning" %}
Da middleware udføres ved hver anmodning, bør ydeevnen tages i betragtning ved implementering af brugerdefineret middleware.
{% endhint %}

### Middleware.ps1

Filen middleware.ps1 kan oprettes i mappen `.universal` ved hjælp af cmdletten `New-PSUMiddleware`.

Hver middleware-instans modtager et [HttpContext](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/use-http-context?view=aspnetcore-7.0)-objekt, når den kaldes. Middleware skal returnere true eller false. Hvis false returneres, stopper middleware med at sende konteksten videre til yderligere elementer i middleware-pipelinen.

Eksemplet nedenfor tilføjer en testcookie til svaret.

```powershell
New-PSUMiddleware -Name 'Middle' -ScriptBlock {
    param($HttpContext)
    $HttpContext.Response.Cookies.Append('X-Test', "Test")
    $true
}
```


---

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