Accessing Huma context in endpoint function

[m-mattia-m]

I would like to access to the Huma context for attributes like base-path or host. I wrote a handler, but I thought there must be an easier/better way for this.

My current handler:

func Router(svc *service.Service) (*gin.Engine, error) {
	router := gin.Default()
	router.Use(func(c *gin.Context) {
		ctx := withGinContext(c.Request.Context(), c)
		c.Request = c.Request.WithContext(ctx)
		c.Next()
	})
	huma.Register(api, huma.Operation{
		Method:      http.MethodPost,
		OperationID: "post-authenticate-user",
		Summary:     "Authenticate user",
		Description: "Authenticate your user ...",
		Path:        "/v2/settings/user/authenticate",
		Security:    []map[string][]string{{"MyOAuth": {"openid", "profile", "email", "offline_access"}}},
		Tags:        []string{"Settings:User"},
	}, AuthenticateUser(svc))
}

func AuthenticateUser(svc *service.Service) func(ctx context.Context, input *model.OAuthCodeRequest) (*model.HttpSuccess, error) {
	return func(c context.Context, input *model.OAuthCodeRequest) (*model.HttpSuccess, error) {
		ginContext := getGinContext(c)
		if ginContext == nil {
			return nil, fmt.Errorf("could not get gin context")
		}

		registeredPath := ginContext.FullPath()
		actualPath := ginContext.Request.URL.Path
		// ...
	}
}

func withGinContext(ctx context.Context, c *gin.Context) context.Context {
	return context.WithValue(ctx, "ginContext", c)
}

func getGinContext(ctx context.Context) *gin.Context {
	if ginCtx, ok := ctx.Value("ginContext").(*gin.Context); ok {
		return ginCtx
	}
	return nil
}

I read that you don't want to expand the context on account of the performance (if I understand that correctly). Is there another reason for this, and is this documented somewhere? I only found these conversations:

• How to get huma.Context from context.Context #410
• Get the router's own context/request/response from the huma #250
• Access huma.context inside the register handler #253