Enhancement: ExternalDocumentation for ScalarRenderPlugin

[cringelord000222]

Summary

Hi there,

From what I've tried (v2.9.0), ExternalDocumentation only works on redoc and swagger, among the few litestar examples given in OpenAPI UI Plugins.

Would love to have it on Scalar as well (ScalarRenderPlugin), since I read that it's going to be the default plugin for v3.0.0.

Not sure if this is the correct place to ask, but thanks in advance.

Basic Example

FYI, this is the rough code that I used:

from litestar.app import Litestar
from litestar.openapi import OpenAPIConfig
from litestar.openapi.plugins ScalarRenderPlugin,

from litestar.openapi.spec import ExternalDocumentation

Litestar(
    openapi_config=OpenAPIConfig(
        title="title",
        version="version",
        external_docs=ExternalDocumentation(
            url=project_metadata["project"]["urls"]["Repository"],
            description="Repository",
        ),
        render_plugins=[
            ScalarRenderPlugin(),
        ],
        path="/docs",
    )
)

Drawbacks and Impact

None

Unresolved questions

None

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[JacobCoffee]

If this isnt working it may be a bug. I think Scalar supports ExternalDocumentation (https://github.com/search?q=repo%3Ascalar%2Fscalar%20ExternalDocumentation&type=code)

[cringelord000222]

If this isnt working it may be a bug. I think Scalar supports ExternalDocumentation (https://github.com/search?q=repo%3Ascalar%2Fscalar%20ExternalDocumentation&type=code)

I've downloaded the spec.json and the externalDocs section does exist. It's just that this part is not rendering in the frontend.

# within spec.json

"externalDocs": {
    "url": "https://github.com/litestar-org/litestar",
    "description": "Repository"
  }