BetterCommerce Klarna NodeJS SDK

BetterCommerce's Klarna NodeJS SDK enables BC client applications to integrate with Klarna merchant API system. It publishes an interface to interact with Klarna API v1 endpoints.

Use below command for package installation:

npm install @better-commerce/bc-klarna-sdk

Architecture Diagram

SDK Initialization

Use following snippet to initialize the SDK:

KlarnaEnvironment.init("<userId>", "<password>");

Usage Example

Create Payment Intent

const data = {
    "intent": "buy",
    "purchase_country": "GB",
    "purchase_currency": "GBP",
    "locale": "en-GB",
    "order_amount": 10,
    "order_tax_amount": 0,
    "order_lines": [{
        "type": "physical",
        "reference": "19-402",
        "name": "Battery Power Pack",
        "quantity": 1,
        "unit_price": 10,
        "tax_rate": 0,
        "total_amount": 10,
        "total_discount_amount": 0,
        "total_tax_amount": 0,
        "image_url": "https://www.exampleobjects.com/logo.png",
        "product_url": "https://www.estore.com/products/f2a8d7e34"
    }]
};
const result = await new Payment().initIntent(data);

Response

{
  "client_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.ewogICJzZXNzaW9uX2lkIiA6ICIw",
  "payment_method_categories": [
    {
      "asset_urls": {
        "descriptive": "https://x.klarnacdn.net/payment-method/assets/badges/generic/klarna.svg",
        "standard": "https://x.klarnacdn.net/payment-method/assets/badges/generic/klarna.svg"
      },
      "identifier": "klarna",
      "name": "Pay with Klarna"
    }
  ],
  "session_id": "0b1d9815-165e-42e2-8867-35bc03789e00"
}

Get Order Details

const orderId = "f20da212-79ca-460f-b490-9958c7acfd52";
const result = await new Payment().getDetails(orderId);

Response

{
    "order_id":"f20da212-79ca-460f-b490-9958c7acfd52",
    "status":"AUTHORIZED",
    "fraud_status":"ACCEPTED",
    "order_amount":19,
    "original_order_amount":19,
    "captured_amount":0,
    "refunded_amount":0,
    "remaining_authorized_amount":19,
    "purchase_currency":"GBP",
    "locale":"en-GB",
    "order_lines":[
        {
            "reference":"Order 4ffc7381-6904-ee11-b1c2-000d3a211cf7 for basket 77b02355-41ed-4b14-9e0f-0476e6b38fb6 OrderPaymentId 318039-1109030",
            "type":"physical",
            "quantity":1,
            "quantity_unit":"",
            "name":"123-KARM-I-NATURLIG-BOK-POLERAD-ALUMINIUM(1)",
            "total_amount":20,
            "unit_price":19,
            "total_discount_amount":0,
            "tax_rate":8,
            "total_tax_amount":1,
            "product_url":"http://localhost:3000/product/products/kallemo-alumunium1-123-1-123-karm-i-naturlig-bok-polerad-aluminium",
            "image_url":"http://localhost:3000/product/products/kallemo-alumunium1-123-1-123-karm-i-naturlig-bok-polerad-aluminium"
        }
    ],
    "klarna_reference":"RFXSDRBN",
    "customer":{
        "date_of_birth":"1985-12-07",
        "type":"person"
    },
    "billing_address":{
        "given_name":"Zornitsa",
        "family_name":"Valkova",
        "title":"",
        "street_address":"Cottage 1",
        "street_address2":"Lornshill Farm",
        "postal_code":"FK10 2EP",
        "city":"Alloa",
        "region":"",
        "country":"GB",
        "email":"[email protected]",
        "phone":"+447777777777"
    },
    "shipping_address":{
        "given_name":"Test",
        "family_name":"UserUk",
        "title":"Mr",
        "street_address":"address 1",
        "street_address2":"address 2",
        "postal_code":"W44HR",
        "city":"city",
        "region":"",
        "country":"GB",
        "email":"[email protected]",
        "phone":"07903046111"
    },
    "created_at":"2023-06-06T13:34:41.149Z",
    "purchase_country":"GB",
    "expires_at":"2023-07-04T00:00:00.000Z",
    "captures":[
        
    ],
    "refunds":[
        
    ],
    "initial_payment_method":{
        "type":"PAY_BY_CARD",
        "description":"Pay by card"
    },
    "shipping_info":[
        
    ]
}