public async Task <Payment> CreatePaymentAsync(PaypalTransaction transaction)
{
PayPalEnvironment environment;
if (isSandboxMode)
{
environment = new SandboxEnvironment(clientId, clientSecret);
}
else
{
environment = new LiveEnvironment(clientId, clientSecret);
}
var client = new PayPalHttpClient(environment);
try
{
var payment = CreatePayment(transaction);
var request = new PaymentCreateRequest().RequestBody(payment);
var response = await client.Execute(request);
var statusCode = response.StatusCode;
var result = response.Result <Payment>();
return(result);
}
catch (HttpException httpException)
{
var statusCode = httpException.StatusCode;
var debugId = httpException.Headers.GetValues("PayPal-Debug-Id").FirstOrDefault();
return(null);
}
}
private Payment CreatePayment(PaypalTransaction transaction)
{
decimal taxRatio = 0.19M;
decimal taxAmount = Math.Round(transaction.TotalAmount * taxRatio, 2, MidpointRounding.AwayFromZero);
decimal amountWithoutTaxes = transaction.TotalAmount - taxAmount;
var split = transaction.InternalReference.Split('.');
string baseUrl = $"{transaction.RedirectUrl.TrimEnd('/')}/{split[0]}/{split[1]}?guid={split[2]}";
string successUrl = $"{baseUrl}&payment=success&verification={split[3]}";
string cancelUrl = $"{baseUrl}&payment=cancel";
var usCulture = new CultureInfo("en-US");
var payment = new Payment()
{
Intent = "sale",
Transactions = new List <Transaction>
{
new Transaction
{
Amount = new Amount
{
Total = transaction.TotalAmount.ToString("N2", usCulture),
Currency = "EUR",
Details = new AmountDetails
{
Subtotal = amountWithoutTaxes.ToString("N2", usCulture),
Tax = taxAmount.ToString("N2", usCulture)
}
},
Description = transaction.BookingDescription,
ItemList = new ItemList
{
Items = new List <Item>
{
new Item
{
Price = amountWithoutTaxes.ToString("N2", usCulture),
Quantity = "1",
Description = transaction.ArticleDescription,
Currency = "EUR"
}
}
}
}
},
RedirectUrls = new RedirectUrls
{
CancelUrl = cancelUrl,
ReturnUrl = successUrl
},
Payer = new Payer
{
PaymentMethod = "paypal"
}
};
return(payment);
}
public async Task CreatePaymentAsync(decimal totalAmount, string bookingDescription, string articleDescription, string internalReference)
{
var transaction = new PaypalTransaction
{
TotalAmount = totalAmount,
BookingDescription = bookingDescription,
ArticleDescription = articleDescription,
InternalReference = internalReference,
RedirectUrl = RedirectUrl
};
var response = await httpClient.PostAsync("api/payment/create", transaction.ToHttpContent());
var payment = await response.Content.ReadAsync<Payment>();
var approvalUrl = payment.Links.FirstOrDefault(x => x.Rel == "approval_url").Href;
await jsRuntime.InvokeVoidAsync("blazorPaypal", approvalUrl);
}
