Your organization's own OpenRouter running in your .NET App

public async Task<object> Get(DownloadInvoice request)
{
    var order = await Db.LoadSingleByIdAsync<Order>(request.Id);
    var invoice = order.MapToInvoice();

    return await pdf.PdfResultAsync(invoice,
        $"Invoice-{order.InvoiceNo}.pdf");
}

[Worker("smtp")]
public class SendInvoiceEmailCommand(IPdfRenderer pdf,
    SmtpConfig config, IDbConnectionFactory dbFactory)
    : AsyncCommand<SendInvoiceEmail>
{
    protected override async Task RunAsync(
        SendInvoiceEmail request, CancellationToken token)
    {
        using var db = await dbFactory.OpenAsync(token: token);
        var order = await db.LoadSingleByIdAsync<Order>(
            request.OrderId, token: token);

        // same model, rendered to bytes instead
        var pdfBytes = await pdf.RenderPdfAsync(
            order.MapToInvoice(), token);

        using var msg = new MailMessage(config.FromEmail, request.To) {
            Subject = request.Subject,
            Body    = request.BodyText,
        };
        msg.Attachments.Add(new Attachment(
            new MemoryStream(pdfBytes), "invoice.pdf", MimeTypes.Pdf));

        using var client = new SmtpClient(config.Host, config.Port);
        await client.SendMailAsync(msg, token);
    }
}