SendGrid - wysyłka wiadomości email

appsettings.json

"SendGrid": {
  "ApiKey": "wygenerowany klucz api",
  "SenderEmail": "blogtest@plawgo.pl",
  "SenderName": "Blog PROGRAMUJE.NET"
} 

appsettings2.json

"SendGrid": {
  "ApiKey": "wygenerowany klucz api",
  "SenderEmail": "blogtest@plawgo.pl",
  "SenderName": "Blog PROGRAMUJE.NET",
  "TemplateId": "id szablonu"
} 

SendGridConfig.cs

public class SendGridConfig
{
    public string ApiKey { get; set; }

    public string SenderEmail { get; set; }

    public string SenderName { get; set; }
}

SendGridConfig2.cs

public class SendGridConfig
{
    public string ApiKey { get; set; }

    public string SenderEmail { get; set; }

    public string SenderName { get; set; }

    public string TemplateId { get; set; }
}

SendGridController.cs

[Route("api/[controller]")]
[ApiController]
public class SendGridController : ControllerBase
{
    private readonly SendGridConfig _config;
    public SendGridController(IOptions<SendGridConfig> config)
    {
        _config = config.Value;
    }

    [HttpPost]
    public async Task<IActionResult> Send(SendDto request)
    {
        var client = new SendGridClient(_config.ApiKey);

        var msg = MailHelper.CreateSingleEmail(new EmailAddress(_config.SenderEmail, _config.SenderName),
            new EmailAddress(request.Email, request.Name),
            "Email Subject",
            "Email body",
            "<strong>Email body</strong>");

        var response = await client.SendEmailAsync(msg);

        return await ProcessResponse(response);
    }

    private async Task<IActionResult> ProcessResponse(Response response)
    {
        var responseContent = await response.Body.ReadAsStringAsync();

        return string.IsNullOrEmpty(responseContent) ? Ok() : BadRequest(responseContent);
    }
}

SendWithTemplate.cs

[HttpPut]
public async Task<IActionResult> SendWithTemplate(SendDto request)
{
    var client = new SendGridClient(_config.ApiKey);

    var msg = MailHelper.CreateSingleTemplateEmail(new EmailAddress(_config.SenderEmail, _config.SenderName), 
        new EmailAddress(request.Email, request.Name),
        _config.TemplateId, 
        new { Name = request.Name});

    var response = await client.SendEmailAsync(msg);

    return await ProcessResponse(response);
}

Startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.Configure<SendGridConfig>(Configuration.GetSection("SendGrid"));

    services.AddControllers();
    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new OpenApiInfo { Title = "SendGridTests", Version = "v1" });
    });
}