NICE Payments

NICE Payments payment window integration guideNICE

1. Configure NICE Payments PG settings

Refer to the NICE Payments settings page to configure the PG settings.

2. Request payment

To open the payment window, call JavaScript SDK IMP.request_pay(param, callback).
In PC browsers, callback is invoked after calling IMP.request_pay(param, callback). In mobile browsers, the page is redirected to m_redirect_url.
Authenticated payment request
Non-authenticated API request
Javascript SDK
pg : 'nice',
pay_method : 'card',
merchant_uid : '{Merchant created Order ID}', // Example: order_no_0001
name : 'Order name: Test payment request',
amount : 14000,
buyer_email : '[email protected]',
buyer_name : 'John Doe',
buyer_tel : '010-1234-5678',
buyer_addr : 'Shinsa-dong, Gangnam-gu, Seoul',
buyer_postcode : '123-456',
m_redirect_url : '{Mobile only - URL to redirect to after payment approval}', // Example:
niceMobileV2 : true // Set to 'true' to enable new mobile version
}, 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 nice.
pay_method *** **string
Payment method code
Payment method codes
  • card (credit card)
  • trans(instant account transfer)
  • vbank(virtual account)
  • samsung(Samsung Pay)
  • phone(mobile micropayment)
  • kakaopay(Kakao Pay)
  • payco ( PAYCO hub-type)
  • naverpay (Naver Pay)
merchant_uid *** **string
Order ID
Must be unique for each request.
amount *** **integer
Payment amount
Must be an integer (not string).
niceMobileV2`` boolean
Option to enable new NICE mobile version (default: false)
escrow`` boolean
Ecrow option
NICE Payments payment window
You can use i'mport REST API to request billing key, request payment, and schedule payment.

Request one-time payment

To request a one-time payment, use the key-in REST API POST /subscribe/payments/onetime. The card information is not saved during this process.
curl -H "Content-Type: application/json" \
-X POST -d '{"merchant_uid":"order_id_8237352", "card_number":"1234-1234-1234-1234", "expiry":"2019-01", "birth":"123456", "amount":3000}' \

Request billing key

To request a billing key, use the billing key request REST API POST /subscribe/customers/{customer_uid}.
curl -H "Content-Type: application/json" \
-X POST -d '{"card_number":"1234-1234-1234-1234", "expiry":"2025-12", "birth":"820213", "pwd_2digit":"00"}' \

Request billing key + initial payment

To request a billing key and initial payment, use the key-in REST API POST /subscribe/payments/onetime.
  • customer_uid : required for saving the billing key.
curl -H "Content-Type: application/json" \
-X POST -d '{"customer_uid":"your-customer-unique-id", "merchant_uid":"order_id_8237352", "card_number":"1234-1234-1234-1234", "expiry":"2019-01", "birth":"123456", "amount":3000}' \

Request payment with billing key

After successfully getting the billing key and making the initial payment, 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 repeat pay REST API (POST /subscribe/payments/again) with the customer_uid as follows:
curl -H "Content-Type: application/json" \
-X POST -d '{"customer_uid":"your-customer-unique-id", "merchant_uid":"order_id_8237352", "amount":3000}' \
NICE Payments supports non-authenticated payments only through the API method.
To integrate non-authenticated payments, you need to provide a UI for accepting user's card information. For more information, refer to the REST API page.

3. Additional functions

Installment setting
Direct credit card module call
Enable specific credit cards
display: {
card_quota: [6] // Display up to 6 months installment plans
  • card_quota :
    • []: Only immediate pay
    • 2,3,4,5,6: immediate, 2, 3, 4, 5, 6 month installment plans
Installment plan option is available only for KRW 50,000 or more.
Example of enabling up to 3 month installment plans
card: {
direct: {
code: "367",
quota: 3
  • code: Credit card code (string)
  • quota: Installment plan. For immediate, set to 0. (integer)
  • Some PGs do not support direct call to credit card company's payment windows for all Merchant IDs. You must check your Merchant ID with each PG for direct call support.
Example of direct call to Hyundai Card module
card : {
detail : [
{card_code:"*", enabled:false}, // Disable all credit cards
{card_code:'366', enabled:true} // Enable specific credit card
  • card_code: Credit card code (string)
  • enabled: Option to enable the credit card (boolean)
Example of showing only Shinhan Card in the payment window
Last modified 9mo ago