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: "", 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)

3. Additional functions

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


  • 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.