⌨️PAYCO
PAYCO simple payment integration guide
1. Configure PAYCO simple payment PG settings
Refer to the PAYCO 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.
IMP.request_pay({
    pg : 'payco',
    merchant_uid: '{Merchant created Order ID}', //Example: order_no_0001
    name : 'Order name: Test payment',
    amount : 14000,
    buyer_email : 'iamport@siot.do',
    buyer_name : 'Customer name',
    buyer_tel : '010-1234-5678',
    buyer_addr : 'Samseong-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 PGis automatically set.
- If there are multiple PG settings, set to - payco.
pay_method string
Payment method code
merchant_uid *** **string
Order ID
Must be unique for each request.
buyer_tel*string
Customer phone number
Required
amount *** **integer
Payment amount
Must be an integer (not string)
To open subscription payment window, specify the customer_uid parameter.
IMP.request_pay({
    pg : 'payco',
    merchant_uid : '{Merchant created Order ID}', // Example: issue_billingkey_monthly_0001
    name : 'Order name: Billing key request test',
    amount : 0, // For display purpose only 
    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'
}, 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 PGis automatically set.
- If there are multiple PG settings, set to - payco.
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
For display purpose only. No payment approval.
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:
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/againNot supported.
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