.NET SDK

1dotnet add package SumUp --prerelease

1export SUMUP_ACCESS_TOKEN="sup_sk_MvxmLOl0..."

1using System;
2using SumUp;
3
4using var client = new SumUpClient();
5
6var merchantResponse = await client.Merchant.GetAsync();
7var merchantCode = merchantResponse.Data?.MerchantProfile?.MerchantCode
8    ?? throw new InvalidOperationException("Merchant code not returned.");
9
10var checkoutReference = $"checkout-{Guid.NewGuid():N}";
11
12var checkoutResponse = await client.Checkouts.CreateAsync(new CheckoutCreateRequest
13{
14    Amount = 10.00f,
15    Currency = Currency.Eur,
16    CheckoutReference = checkoutReference,
17    MerchantCode = merchantCode,
18    Description = "Test payment",
19    RedirectUrl = "https://example.com/success",
20    ReturnUrl = "https://example.com/webhook",
21});
22
23Console.WriteLine($"Checkout ID: {checkoutResponse.Data?.Id}");

1using SumUp;
2
3using var client = new SumUpClient();
4
5var readerCheckout = await client.Readers.CreateCheckoutAsync(
6    merchantCode: "your-merchant-code",
7    readerId: "your-reader-id",
8    body: new CreateReaderCheckoutRequest
9    {
10        Description = "Coffee purchase",
11        ReturnUrl = "https://example.com/webhook",
12        TotalAmount = new CreateReaderCheckoutRequestTotalAmount
13        {
14            Currency = "EUR",
15            MinorUnit = 2,
16            Value = 1000,
17        },
18    });
19
20Console.WriteLine($"Reader checkout created: {readerCheckout.Data?.Data?.ClientTransactionId}");