Klarna Drop-in integration

curl https://checkout-test.adyen.com/v68/payments \
-H "x-API-key: YOUR_X-API-KEY" \
-H "content-type: application/json" \
-d '{
   "merchantAccount":"YOUR_MERCHANT_ACCOUNT",
   "reference":"YOUR_ORDER_REFERENCE",
   "paymentMethod":{
      "type":"klarna"
   },
   "amount":{
      "currency":"SEK",
      "value": 1000
   },
   "shopperLocale":"en_US",
   "countryCode":"SE",
   "telephoneNumber": "+46 840 839 298",
   "shopperEmail":"youremail@email.com",
   "shopperName":{
      "firstName":"Testperson-se",
      "gender":"UNKNOWN",
      "lastName":"Approved"
   },
   "shopperReference":"YOUR_UNIQUE_SHOPPER_ID",
   "billingAddress":{
      "city":"Ankeborg",
      "country":"SE",
      "houseNumberOrName":"1",
      "postalCode":"12345",
      "street":"Stargatan"
   },
   "deliveryAddress":{
      "city":"Ankeborg",
      "country":"SE",
      "houseNumberOrName":"1",
      "postalCode":"12345",
      "street":"Stargatan"
   },
   "returnUrl":"adyencheckout://your.package.name",
   "lineItems":[
      {
         "quantity":"1",
         "taxPercentage":"2100",
         "description":"Shoes",
         "id":"Item #1",
         "amountIncludingTax":"400",
         "productUrl": "URL_TO_PURCHASED_ITEM",
         "imageUrl": "URL_TO_PICTURE_OF_PURCHASED_ITEM"
      },
      {
         "quantity":"2",
         "taxPercentage":"2100",
         "description":"Socks",
         "id":"Item #2",
         "amountIncludingTax":"300",
         "productUrl": "URL_TO_PURCHASED_ITEM",
         "imageUrl": "URL_TO_PICTURE_OF_PURCHASED_ITEM"
      }
   ],
   "additionalData" : {
     "openinvoicedata.merchantData" : "eyJjdXN0b21lcl9hY ... "
   }
}'

# Set your X-API-KEY with the API key from the Customer Area.
adyen = Adyen::Client.new
adyen.env = :test
adyen.api_key = "YOUR_X-API-KEY"

response = adyen.checkout.payments({
  :merchantAccount => "YOUR_MERCHANT_ACCOUNT",
  :reference => "YOUR_ORDER_NUMBER",
  :paymentMethod => {
    :type => "klarna"
  },
  :amount => {
    :currency => "SEK",
    :value => 1000
  },
  :shopperLocale => "en_US",
  :countryCode => "SE",
  :shopperEmail => "youremail@email.com",
  :shopperName => {
    :firstName => "Testperson-se",
    :gender => "UNKNOWN",
    :lastName => "Approved"
  },
  :telephoneNumber => "+46 840 839 298",
  :shopperReference => "YOUR_UNIQUE_SHOPPER_ID",
  :billingAddress => {
    :city => "Ankeborg",
    :country => "SE",
    :houseNumberOrName => "1",
    :postalCode => "12345",
    :street => "Stargatan"
  },
  :deliveryAddress => {
    :city => "Ankeborg",
    :country => "SE",
    :houseNumberOrName => "1",
    :postalCode => "12345",
    :street => "Stargatan"
  },
  :returnUrl => "adyencheckout://your.package.name",
  :lineItems => [
    {
      :quantity => "1",
      :taxPercentage => "2100",
      :description => "Shoes",
      :id => "Item #1",
      :amountIncludingTax => "400",
      :productUrl => "URL_TO_PURCHASED_ITEM",
      :imageUrl => "URL_TO_PICTURE_OF_PURCHASED_ITEM"
    },
    {
      :quantity => "2",
      :taxPercentage => "2100",
      :description => "Socks",
      :id => "Item #2",
      :amountIncludingTax => "300",
      :productUrl => "URL_TO_PURCHASED_ITEM",
      :imageUrl => "URL_TO_PICTURE_OF_PURCHASED_ITEM"
    }
  ],
  :additionalData => {
    :openinvoicedata.merchantData => "eyJjdXN0b21lcl9hY ... "
  }
})

// Create a Client to establish a connection to our services with your API Key from the Customer Area.
Client client = new Client("YOUR_API_KEY", Environment.TEST);

Checkout checkout = new Checkout(client);

PaymentsRequest paymentsRequest = new PaymentsRequest();

paymentsRequest.setMerchantAccount("YOUR_MERCHANT_ACCOUNT");
paymentsRequest.setReference("YOUR_ORDER_REFERENCE");

PaymentMethodDetails paymentMethodDetails = new DefaultPaymentMethodDetails();
paymentMethodDetails.setType("klarna");

paymentsRequest.setPaymentMethod(paymentMethodDetails);

Amount amount = new Amount();
amount.setCurrency("SEK");
amount.setValue(1000L);

paymentsRequest.setAmount(amount);
paymentsRequest.setShopperLocale("en_US");
paymentsRequest.setCountryCode("SE");
paymentsRequest.setTelephoneNumber("+46 840 839 298");
paymentsRequest.setShopperEmail("youremail@email.com");

Name shopperDetails = new Name();
shopperDetails.setFirstName("TestPerson-Se");
shopperDetails.setGender(Name.GenderEnum.UNKNOWN);
shopperDetails.setLastName("Approved");

paymentsRequest.setShopperName(shopperDetails);
paymentsRequest.setShopperReference("YOUR_UNIQUE_SHOPPER_ID");

Address billingAddress = new Address();
billingAddress.setCity("Ankeborg");
billingAddress.setCountry("SE");
billingAddress.setHouseNumberOrName("1");
billingAddress.setPostalCode("12345");
billingAddress.setStreet("Stargatan");

paymentsRequest.setBillingAddress(billingAddress);

Address deliveryAddress = new Address();
deliveryAddress.setCity("Ankeborg");
deliveryAddress.setCountry("SE");
deliveryAddress.setHouseNumberOrName("1");
deliveryAddress.setPostalCode("12345");
deliveryAddress.setStreet("Stargatan");

paymentsRequest.setdeliveryAddress(deliveryAddress);
paymentsRequest.setReturnUrl("adyencheckout://your.package.name");

List<LineItem> lineItems = new ArrayList<>();
lineItems.add(
        new LineItem()
                .quantity(1L)
                .taxPercentage(2100L)
                .description("Shoes")
                .id("Item #1")
                .amountIncludingTax(400L)
                .productUrl("URL_TO_PURCHASED_ITEM")
                .imageUrl("URL_TO_PICTURE_OF_PURCHASED_ITEM")
);
lineItems.add(
        new LineItem()
                .quantity(2L)
                .taxPercentage(2100L)
                .description("Socks")
                .id("Item #2")
                .amountIncludingTax(300L)
                .productUrl("URL_TO_PURCHASED_ITEM")
                .imageUrl("URL_TO_PICTURE_OF_PURCHASED_ITEM")
);

paymentsRequest.setLineItems(lineItems);

Map<String, String> additionalData = new HashMap<>();
additionalData.put("openinvoicedata.merchantData", "eyJjdXN0b21lcl9hY ...");

paymentsRequest.setAdditionalData(additionalData);

PaymentsResponse paymentsResponse = checkout.payments(paymentsRequest);

// Set your X-API-KEY with the API key from the Customer Area.
$client = new \Adyen\Client();
$client->setXApiKey("YOUR_X-API-KEY");
$service = new \Adyen\Service\Checkout($client);

$params = [
  "merchantAccount" => "YOUR_MERCHANT_ACCOUNT",
  "reference" => "YOUR_ORDER_REFERENCE",
  "paymentMethod" => [
     "type" => "klarna"
  ],
  "amount" => [
     "currency" => "SEK",
     "value" => "1000"
  ],
  "shopperLocale" => "en_US",
  "countryCode" => "SE",
  "telephoneNumber" => "+46 840 839 298",
  "shopperEmail" => "youremail@email.com",
  "shopperName" => [
     "firstName" => "Testperson-se",
     "gender" => "UNKNOWN",
     "lastName" => "Approved"
  ],
  "shopperReference" => "YOUR_UNIQUE_SHOPPER_ID",
  "billingAddress" => [
     "city" => "Ankeborg",
     "country" => "SE",
     "houseNumberOrName" => "1",
     "postalCode" => "12345",
     "street" => "Stargatan"
  ],
  "deliveryAddress" => [
     "city" => "Ankeborg",
     "country" => "SE",
     "houseNumberOrName" => "1",
     "postalCode" => "12345",
     "street" => "Stargatan"
  ],
  "returnUrl" => "adyencheckout://your.package.name",
  "lineItems" => [
     [
        "quantity" => "1",
        "taxPercentage" => "2100",
        "description" => "Shoes",
        "id" => "Item #1",
        "amountIncludingTax" => "400",
        "productUrl" => "URL_TO_PURCHASED_ITEM",
        "imageUrl" => "URL_TO_PICTURE_OF_PURCHASED_ITEM"
     ],
     [
        "quantity" => "2",
        "taxPercentage" => "2100",
        "description" => "Socks",
        "id" => "Item #2",
        "amountIncludingTax" => "300",
        "productUrl" => "URL_TO_PURCHASED_ITEM",
        "imageUrl" => "URL_TO_PICTURE_OF_PURCHASED_ITEM"
     ]
  ],
  "additionalData" => [
    "openinvoicedata.merchantData" => "eyJjdXN0b21lcl9hY ... "
  ]
];

$result = $service->payments($params);

// Check if further action is needed
if (array_key_exists("action", $result)){
   // Pass the action object to your frontend.
   // $result["action"]
}
else {
   // No further action needed, pass the resultCode to your front end
   // $result['resultCode']
}

# Set your X-API-KEY with the API key from the Customer Area.
adyen = Adyen.Adyen()
adyen.client.xapikey = 'YOUR_X-API-KEY'

result = adyen.checkout.payments({
  "merchantAccount": "YOUR_MERCHANT_ACCOUNT",
  "reference": "YOUR_ORDER_REFERENCE",
  "paymentMethod": {
    "type": "klarna"
  },
  "amount": {
    "currency": "SEK",
    "value": 1000
  },
  "shopperLocale": "en_US",
  "countryCode": "SE",
  "telephoneNumber": "+46 840 839 298",
  "shopperEmail": "youremail@email.com",
  "shopperName": {
    "firstName": "Testperson-se",
    "gender": "UNKNOWN",
    "lastName": "Approved"
  },
  "shopperReference": "YOUR_UNIQUE_SHOPPER_ID",
  "billingAddress": {
    "city": "Ankeborg",
    "country": "SE",
    "houseNumberOrName": "1",
    "postalCode": "12345",
    "street": "Stargatan"
  },
  "deliveryAddress": {
    "city": "Ankeborg",
    "country": "SE",
    "houseNumberOrName": "1",
    "postalCode": "12345",
    "street": "Stargatan"
  },
  "returnUrl": "adyencheckout://your.package.name",
  "lineItems": [
    {
      "quantity": "1",
      "taxPercentage": "2100",
      "description": "Shoes",
      "id": "Item #1",
      "amountIncludingTax": "400",
      "productUrl": "URL_TO_PURCHASED_ITEM",
      "imageUrl": "URL_TO_PICTURE_OF_PURCHASED_ITEM"
    },
    {
      "quantity": "2",
      "taxPercentage": "2100",
      "description": "Socks",
      "id": "Item #2",
      "amountIncludingTax": "300",
      "productUrl": "URL_TO_PURCHASED_ITEM",
      "imageUrl": "URL_TO_PICTURE_OF_PURCHASED_ITEM"
    }
  ],
  "additionalData": {
    "openinvoicedata.merchantData": "eyJjdXN0b21lcl9hY ... "
  }
})

// Set your X-API-KEY with the API key from the Customer Area.
var client = new Client ("YOUR_X-API-KEY", Environment.Test);
var checkout = new Checkout(client);

var paymentRequest = new Adyen.Model.Checkout.PaymentRequest
{
   MerchantAccount = "YOUR_MERCHANT_ACCOUNT",
   Reference = "YOUR_ORDER_REFERENCE",
   PaymentMethod = new DefaultPaymentMethodDetails { Type = "klarna" },
   Amount = new Model.Checkout.Amount(Currency: "SEK", Value: 1000),
   ShopperLocale = "en_US",
   CountryCode = "SE",
   TelephoneNumber = "+46 840 839 298",
   ShopperEmail = "youremail@email.com",
   ShopperName = new Model.Checkout.Name
   {
       FirstName = "Testperson-se",
       Gender = Model.Checkout.Name.GenderEnum.UNKNOWN,
       LastName = "Approved"
   },
   ShopperReference = "YOUR_UNIQUE_SHOPPER_ID",
   BillingAddress = new Model.Checkout.Address
   {
       City = "Ankeborg",
       Country = "SE",
       HouseNumberOrName = "1",
       PostalCode = "12345",
       Street = "Stargatan"
   },
   DeliveryAddress = new Model.Checkout.Address
   {
       City = "Ankeborg",
       Country = "SE",
       HouseNumberOrName = "1",
       PostalCode = "12345",
       Street = "Stargatan"
   },
   ReturnUrl = "adyencheckout://your.package.name",
   LineItems = new List<LineItem>
{
   new LineItem(Quantity:1, TaxPercentage:2100,
   Description:"Shoes", Id:"Item #1", AmountIncludingTax:400, ProductUrl:"URL_TO_PURCHASED_ITEM", ImageUrl:"URL_TO_PICTURE_OF_PURCHASED_ITEM"),
   new LineItem(Quantity:2, TaxPercentage:2100,
   Description:"Socks", Id:"Item #2", AmountIncludingTax:300, ProductUrl:"URL_TO_PURCHASED_ITEM", ImageUrl:"URL_TO_PICTURE_OF_PURCHASED_ITEM"),
},
   AdditionalData = new Dictionary<string, string> { { "openinvoicedata.merchantData", "eyJjdXN0b21lcl9hY ... " } }
};
return paymentRequest;
}

// Set your X-API-KEY with the API key from the Customer Area.
const {Client, Config, CheckoutAPI} = require('@adyen/api-library');
const config = new Config();
// Set your X-API-KEY with the API key from the Customer Area.
config.apiKey = '[API_KEY]';
config.merchantAccount = '[MERCHANT_ACCOUNT]';
const client = new Client({ config });
client.setEnvironment("TEST");
const checkout = new CheckoutAPI(client);
checkout.payments({
  merchantAccount: "YOUR_MERCHANT_ACCOUNT",
  reference: "YOUR_ORDER_REFERENCE",
  paymentMethod: {
     type: "klarna"
  },
  amount: {
     currency: "SEK",
     value: "1000"
  },
  shopperLocale: "en_US",
  countryCode: "SE",
  telephoneNumber: "+46 840 839 298",
  shopperEmail: "youremail@email.com",
  shopperName: {
     firstName: "Testperson-se",
     gender: "UNKNOWN",
     lastName: "Approved"
  },
  shopperReference: "YOUR_UNIQUE_SHOPPER_ID",
  billingAddress: {
     city: "Ankeborg",
     country: "SE",
     houseNumberOrName: "1",
     postalCode: "12345",
     street: "Stargatan"
  },
  deliveryAddress: {
     city: "Ankeborg",
     country: "SE",
     houseNumberOrName: "1",
     postalCode: "12345",
     street: "Stargatan"
  },
  returnUrl: "adyencheckout://your.package.name",
  lineItems: [
     {
        quantity: "1",
        taxPercentage: "2100",
        description: "Shoes",
        id: "Item 1",
        amountIncludingTax: "400",
        productUrl: "URL_TO_PURCHASED_ITEM",
        imageUrl: "URL_TO_PICTURE_OF_PURCHASED_ITEM"
     },
     {
        quantity: "2",
        taxPercentage: "2100",
        description: "Socks",
        id: "Item 2",
        amountIncludingTax: "300",
        productUrl: "URL_TO_PURCHASED_ITEM",
        imageUrl: "URL_TO_PICTURE_OF_PURCHASED_ITEM"
     }
  ],
  additionalData: {
    "openinvoicedata.merchantData": "eyJjdXN0b21lcl9hY ... "
  }
}).then(res => res);