in my project I have several routes like - `/api/<device id>/foo` - `/api/<device id>/bar` - ... ...

# ktor

[William Reed]

in my project I have several routes like
- /api/<device id>/foo
- /api/<device id>/bar
- ...

each device id is a UUID and I want to verify it is a UUID and not a random string and ensure that the user is authorized for that. I saw [this sample project](https://github.com/ktorio/ktor-documentation/blob/3.0.0/codeSnippets/snippets/custom-plugin-authorization/src/main/kotlin/com/example/plugins/AuthorizationPlugin.kt) using createRouteScopedPlugin and on(AuthenticationChecked which does most of what I want. I just want to know if there is a way to pass along a verified UUID from this plugin to the routes this is installed on so I don’t have to manually convert the string parameter into a UUID every place it is used

[William Reed]

i could use the call attributes but that seems kind of weird

[William Reed]

maybe call attributes + an extension function to clean up the retrieval?

[Aleksei Tirman [JB]]

maybe call attributes + an extension function to clean up the retrieval?

I think it's an optimal solution