Danal

Danal payment window integration guide

1. Configure Danal PG settings

Refer to the Danal settings page to configure the PG settings.

2. Request payment

To open the Danal TPay payment window, call JavaScript SDK IMP.request_pay(param, callback).

In both PC and mobile browsers, callback is invoked after calling IMP.request_pay(param, callback).

Javascript SDK
IMP.request_pay(
  {
    pg: "danal_tpay",
    pay_method: "card",
    merchant_uid: "{Merchant created Order ID}", // Example: order_no_0001
    name: "Order name: Test payment request",
    amount: 14000,
    buyer_email: "iamport@siot.do",
    buyer_name: "John Doe",
    buyer_tel: "010-1234-5678",
    buyer_addr: "Shinsa-dong, Gangnam-gu, Seoul",
    buyer_postcode: "123-456",
  },
  function (rsp) {
    // callback logic
    //* ...Omitted... *//
  },
);

Key parameter description

pg * string

PG code

If not specified and this is the only PG setting that exists, default PG is automatically set.
If there are multiple PG settings, set to danal_tpay.

pay_method * string

Payment method code

Payment method codes

card (credit card)
trans(instant account transfer)
vbank(virtual account)
cultureland(Cultureland)
happymoney(Happy Money)
booknlife (Book n culture gift card)

merchant_uid * string

Order ID

Must be unique for each request.

buyer_tel * string

Customer phone number

Danal payment window may throw an error if omitted

amount * integer

Payment amount

Must be an integer (not string)

Virtual account payment requirement

biz_num: 10-digit business registration number (required)

To open non-authenticated payment window, specify the customer_uid parameter.

amount

If requesting both billing key and initial payment, specify the payment amount.
If only requesting for billing key, set to 0.
(if amount is set to 0, Danal executes a test payment of 10 won which is automatically cancelled after 30 minutes.)

Javascript SDK
IMP.request_pay(
  {
    pg: "danal_tpay",
    pay_method: "card", // only 'card' supported.
    merchant_uid: "{Merchant created Order ID}", // Example: issue_billingkey_monthly_0001
    name: "Order name: Billing key request test",
    amount: 0, // For display purpose only (set actual amount to also request payment approval).
    customer_uid: "{Unique ID for the card (billing key)}", // Required (Example: gildong_0001_1234)
    buyer_email: "johndoe@gmail.com",
    buyer_name: "John Doe",
    buyer_tel: "02-1234-1234",
    buyer_addr: "Samseong-dong, Gangnam-gu, Seoul",
    period: {
      from: "20200101", //YYYYMMDD
      to: "20201231", //YYYYMMDD
    },
  },
  function (rsp) {
    if (rsp.success) {
      alert("Success");
    } else {
      alert("Failed");
    }
  },
);

Key parameter description

pg * string

PG code

If not specified and this is the only PG setting that exists, default PG is automatically set.
If there are multiple PG settings, set to danal_tpay.

customer_uid * string

Credit card billing key

Billing key to be mapped 1:1 with the user-entered credit card information.

amount * Integer

Payment amount

0: only billing key, > 0: billing key + initial payment

period`` array

Product subscription payment for subscription payment. The date is displayed on the Danal payment window.

from: YYYYMMDD

to: YYYYMMDD\

Request payment with billing key (customer_uid)

After successfully getting the billing key, the billing key is stored on the i’mport server mapped 1:1 with the specified customer_uid. For security reasons, the server cannot directly access the billing key. Subsequent payments can be requested by calling the non-authenticated payment request REST API with the customer_uid as follows:

sever-side
curl -H "Content-Type: application/json" \
     -X POST -d '{"customer_uid":"your-customer-unique-id", "merchant_uid":"order_id_8237352", "amount":3000}' \
     https://api.iamport.kr/subscribe/payments/again

3. Additional functions

javascript
{
  "display": {
    "card_quota": [6] // Display up to 6 months installment plans
  }
}

Parameters

card_quota :
- []: Only immediate pay
- 3,6: immediate, 3, 6 month installment plans

Installment plan option is available only for KRW 50,000 or more.

Example of allowing up to 3 months installment plans

javascript
{
  "card": {
    "direct": {
      "code": "367",
      "quota": 3,
      "usePoint": "Y"
    }
  }
}

Parameters

code: Credit card code (string)
quota: Installment plan. For immediate, set to 0. (integer)
usePoint: Option to use points (post applied)

Danal setup required

Direct module call requires pre-setup by Danal.

javascript
{
  "card": {
    "detail": [
      { "card_code": "*", "enabled": false }, // Disable all credit cards
      { "card_code": "366", "enabled": true }, // Enable specific credit card
    ]
  }
}

Parameters

card_code: Credit card code (string)
enabled: Option to enable the credit card (boolean)

Example of showing only Shinhan Card in the payment window