Bad Request Check `Errors` for a list of errors returned by the API. at SendGrid

Question

I'm using send grid to send an email after a user is created and I'm following This tutorial Here http://www.asp.net/identity/overview/features-api/account-confirmation-and-password-recovery-with-aspnet-identity I even downloaded This tutorial and wrote code as it is

but it code breaks at this

string code = manager.GenerateEmailConfirmationToken(uApp.Id);
string callbackUrl = IdentityHelper.GetUserConfirmationRedirectUrl(code, uApp.Id, Request);
 manager.SendEmail(uApp.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>.");

Its This third like

manager.SendEmail(uApp.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>.");

Where code breaks

and the errors is like this

Exceptions.InvalidApiRequestException: Bad Request Check Errors for a list of errors returned by the API. at SendGrid.Web.d__c.MoveNext() -- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at SendGrid.Web.d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult() at GCRweb.EmailService.d__0.MoveNext()

and bla bla bla before this it was giving me an error on first line abot some token and stuff What is that I'm doing wrong

Answer 1

InvalidApiRequestException exception is the key.

The best way to handle errors using DeliverAsync() method is something like this:

            try
            {
                await transportWeb.DeliverAsync(mensaje);
            }
            catch (InvalidApiRequestException ex)
            {
                var detalle = new StringBuilder();

                detalle.Append("ResponseStatusCode: " + ex.ResponseStatusCode + ".   ");
                for (int i = 0; i < ex.Errors.Count(); i++)
                {
                    detalle.Append(" -- Error #" + i.ToString() + " : " + ex.Errors[i]);
                }

                throw new ApplicationException(detalle.ToString(), ex);
            }