Create a context dynamically by Url, not predefined in PnpCoreOptions.Sites

[lgadola]

We have a huge number of Sharepoint sites (not subsites/subwebs). With CSOM I could open the sites by just passing the Url.
In PnP, this seems to be impossible, it requires the sites to be predefined in PnpCoreOptions.Sites.
Is there a workaround for this?

[pschaeflein]

From the readme

If you prefer to create a PnPContext by specifying the URL you need in code or you want to be able to easily switch between authentication providers then below sample shows how to so. This snippet works without an configuration file, all you need to do is add the needed authentication provider configuration(s) and then later on in your code acquire the needed authentication providers via the IAuthenticationProviderFactory. Once you have your authentication provider you can use it in the Create methods on the context factory:

using (var scope = host.Services.CreateScope())
{
    var pnpContextFactory = scope.ServiceProvider.GetRequiredService<IPnPContextFactory>();
    var pnpAuthenticationProviderFactory = scope.ServiceProvider.GetRequiredService<IAuthenticationProviderFactory>();

    var interactiveAuthProvider = pnpAuthenticationProviderFactory.Create("interactive");
    var passwordManagerAuthProvider = pnpAuthenticationProviderFactory.Create("usernamepassword");

    using (var context = await pnpContextFactory.CreateAsync(new Uri("https://contoso.sharepoint.com/sites/prov-1"), 
                                                             interactiveAuthProvider))
    {
        await context.Web.LoadAsync(p => p.Title);
        Console.WriteLine($"The title of the web is {context.Web.Title}");

        using (var context2 = await pnpContextFactory.CreateAsync(new Uri("https://contoso.sharepoint.com/sites/prov-1"), 
                                                                  passwordManagerAuthProvider))
        {
            await context2.Web.LoadAsync(p => p.Title);
            Console.WriteLine($"The title of the web is {context2.Web.Title}");
        }
    }
}

[lgadola]

Thank you, that worked!