use_service documentation seems wrong

[pkese]

I've been trying to figure out https://www.falcoframework.com/docs/host.html#add_service

There's function dbConnectionService that creates a service:

    // Register our database connection factory service
    let dbConnectionService (svc : IServiceCollection) =
        svc.AddSingleton<IDbConnectionFactory, DbConnectionFactory>(fun _ ->
            // Load default connection string from appsettings.json
            let connectionString = config.GetConnectionString("Default")
            new DbConnectionFactory(connectionString))

    webHost [||] {
        endpoints [
            get "/" (Response.ofPlainText "Hello world")
        ]
    }

... but that function just sits there and doesn't seem to be called from anywhere.

Is that correct? I was supposing that someone should somewhere call use_service.

Also:
The chapter starts with: Note the use of the ConfigurationBuilder, but I can't find a ConfigurationBuilder anywhere in the example. Maybe that needs more explanation, if the ConfigurationBuilder is used in some implicit manner (this is all very hard to understand for newbies).

And:
ConfigurationBuiler is misspelled on the page (without 'd').

[pkese]

Another thing I'm trying to figure out:

I wish to include 'BananaCakePop' app that comes in a separate nuget package and one needs to include it into the server and bind it to a route:

app.UseEndpoints(endpoints =>
{
    endpoints.MapGraphQL();
    endpoints.MapBananaCakePop("/my-graphql-ui");
});

(example taken from https://chillicream.com/docs/bananacakepop/v2/integrations/hot-chocolate)

In order to do so, I assume I'd need access to the IAppliationBuilder, but that is embedded in the HostBuilder computaion expression and not exposed to the outside world.

Nor can I figure out how I'd include this in the endpoints [ ... ] section.

[nicholas-peterson]

Maybe not understanding your questions, but is the end of your [<EntryPoint>] function something like this:

[<EntryPoint>]
let main args =
    webHost [||] {
        use_service yourMiddleWareFuncHere
        endpoints (generateEndpoints ())
    }

    0

You can use the helper functions like use_service inside that webHost record.

Then the trick would be making the signatures match. So access to the IApplicationBuilder would be available using use_middleware with a function that has a signature of IApplicationBuilder -> IApplicationBuilder.

Does that help or am I missing your point entirely (very possible :) )?