PayPay BETA

Enable your customers to make purchases directly from their PayPay accounts. PayPay payments help your business access over 50 million PayPay users across Japan. No need to fill out payment details; customers can simply scan your QR code for faster checkout. This guide walks you through the payment flow and details on how to implement. By using PayPay, you agree to PayPay’s acceptable use policy and terms of service

How to enable

• Supported Countries: Japan
• Minimum API version: 2017-11-02

To enable PayPay, send an email requesting this feature to support@opn.ooo. You will need to review and accept new terms and conditions.

Payment flow

PayPay supports payment on mobile application and website. Customers paying via PayPay go through an app_redirect payment flow. This means they are redirected from your website or mobile application to PayPay QR Code page where they authorize and confirm the payment. For mobile, a customer can use PayPay app to complete the payment. For website payment a customer can either scan the QR code using the PayPay app on their phone, or login into their PayPay account to complete the payment. The following sections demonstrate these flows.

Payment via Link

The customer chooses PayPay as the payment method they wish to pay with. On desktop, a QR code will be shown which can be scanned using the PayPay mobile application. On mobile, the PayPay application will open. Once the customer has confirmed the payment details within the PayPay application, the customer can authorize the payment. The payment confirmation is then shown. After 5 seconds, the customer will be redirected to the merchant's payment confirmation page. Once you receive a webhook completion event, confirm the payment with the customer.

Implementation

To create a charge using PayPay, make the following API requests.

1. Create a new payment source (type: paypay) using Omise.js or one of the mobile SDKs (iOS and Android)
2. Create a new charge using the identifier of the source created in Step 1.
3. After receiving the charge completion webhook event, retrieve the charge to verify its status (optional, but recommended).

Use your public key to create the PayPay source on the client (a customer's browser or mobile phone). Use your secret key to create the PayPay charge on the server.

If both the creation and charge of a source must happen server-side, you can create and charge the source in a single API request using your secret key.

Creating a source

When the customer confirms that they wish to pay with this payment method, create a new source specifying the amount, currency, and type.

The following examples demonstrate the creation of a new PayPay source for ฿1000. Replace the omise_public_key and $OMISE_PUBLIC_KEY variables with the test public key found on your dashboard.

Using Omise.js, the type parameter is supplied as the first argument to the createSource method.

Omise.setPublicKey(omise_public_key);

Omise.createSource('paypay', {
  "amount": 1000,
  "currency": "JPY",
  "items",
    [
      {
        "name": "water bottle",
        "amount": "500",
        "quantity: "2"
      }
    ],
}, function(statusCode, response) {
  console.log(response)
});

For testing, you can create the same request using curl.

curl https://api.omise.co/sources \
  -u $OMISE_PUBLIC_KEY: \
  -d "amount=1000" \
  -d "currency=JPY" \
  -d "type=paypay" \
  -d "items[0][name]=water bottle" \
  -d "items[0][quantity]=2" \
  -d "items[0][amount]=500"

{
  "object": "source",
  "id": "src_test_5vtkc9v5mbwlqjb02vh",
  "livemode": false,
  "location": "/sources/src_test_5vtkc9v5mbwlqjb02vh",
  "amount": 1000,
  "barcode": null,
  "bank": null,
  "created_at": "2023-05-19T03:15:17Z",
  "currency": "JPY",
  "email": null,
  "flow": "redirect",
  "installment_term": null,
  "absorption_type": null,
  "name": null,
  "mobile_number": null,
  "phone_number": null,
  "platform_type": null,
  "scannable_code": null,
  "billing": null,
  "shipping": null,
  "items": [
    {
      "sku": null,
      "name": "water bottle",
      "brand": null,
      "category": null,
      "amount": 500,
      "quantity": 2,
      "item_uri": null,
      "image_uri": null
    }
  ],
  "references": null,
  "store_id": null,
  "store_name": null,
  "terminal_id": null,
  "type": "paypay",
  "zero_interest_installments": null,
  "charge_status": "unknown",
  "receipt_amount": null,
  "discounts": []
}

The id attribute is the source identifier (begins with src).

Creating a charge

Create a charge specifying the parameters return_uri, source, amount, and currency.

• return_uri specifies the location on your website to which the customer should be redirected after completing the payment authorization step.

  URL must be in HTTPS format.

• source specifies the source identifier.

• amount and currency must match amount and currency of the source.

Can support both manual and automatic capture.

The following example demonstrates how to create a new charge using curl. Replace $OMISE_SECRET_KEY with your test secret key found on your dashboard. Replace $SOURCE_ID with the id of the source.

curl https://api.omise.co/charges \
  -u $OMISE_SECRET_KEY: \
  -d "amount=1000" \
  -d "currency=JPY" \
  -d "source[items][0][name]=water bottle" \
  -d "source[items][0][quantity]=2" \
  -d "source[items][0][amount]=500" \
  -d "return_uri=http://example.com/orders/345678/complete" \
  -d "source=$SOURCE_ID"

{
  "object": "charge",
  "id": "chrg_test_5vtkca22yzwlc00d5vj",
  "location": "/charges/chrg_test_5vtkca22yzwlc00d5vj",
  "amount": 1000,
  "net": 967,
  "fee": 30,
  "fee_vat": 3,
  "interest": 0,
  "interest_vat": 0,
  "funding_amount": 1000,
  "refunded_amount": 0,
  "transaction_fees": {
    "fee_flat": "0.0",
    "fee_rate": "2.95",
    "vat_rate": "10.0"
  },
  "platform_fee": {
    "fixed": null,
    "amount": null,
    "percentage": null
  },
  "currency": "JPY",
  "funding_currency": "JPY",
  "ip": null,
  "refunds": {
    "object": "list",
    "data": [],
    "limit": 20,
    "offset": 0,
    "total": 0,
    "location": "/charges/chrg_test_5vtkca22yzwlc00d5vj/refunds",
    "order": "chronological",
    "from": "1970-01-01T00:00:00Z",
    "to": "2023-05-19T03:15:18Z"
  },
  "link": null,
  "description": null,
  "metadata": {},
  "card": null,
  "source": {
    "object": "source",
    "id": "src_test_5vtkc97sffke5l248dr",
    "livemode": false,
    "location": "/sources/src_test_5vtkc97sffke5l248dr",
    "amount": 1000,
    "barcode": null,
    "bank": null,
    "created_at": "2023-05-19T03:15:13Z",
    "currency": "JPY",
    "email": null,
    "flow": "redirect",
    "installment_term": null,
    "absorption_type": null,
    "name": null,
    "mobile_number": null,
    "phone_number": null,
    "platform_type": null,
    "scannable_code": null,
    "billing": null,
    "shipping": null,
    "items": [
      {
        "sku": null,
        "name": "water bottle",
        "brand": null,
        "category": null,
        "amount": 500,
        "quantity": 2,
        "item_uri": null,
        "image_uri": null
      }
    ],
    "references": null,
    "store_id": null,
    "store_name": null,
    "terminal_id": null,
    "type": "paypay",
    "zero_interest_installments": null,
    "charge_status": "pending",
    "receipt_amount": null,
    "discounts": []
  },
  "schedule": null,
  "customer": null,
  "dispute": null,
  "transaction": null,
  "failure_code": null,
  "failure_message": null,
  "status": "pending",
  "authorize_uri": "https://pay.omise.co/payments/pay2_test_5vtkca25pyw19wtzrtn/authorize",
  "return_uri": "http://example.com/orders/345678/complete",
  "created_at": "2023-05-19T03:15:17Z",
  "paid_at": null,
  "expires_at": "2023-06-18T03:15:17Z",
  "expired_at": null,
  "reversed_at": null,
  "zero_interest_installments": false,
  "branch": null,
  "terminal": null,
  "device": null,
  "authorized": false,
  "capturable": false,
  "capture": true,
  "disputable": false,
  "livemode": false,
  "refundable": false,
  "reversed": false,
  "reversible": false,
  "voided": false,
  "paid": false,
  "expired": false
}

Creating a source and charge

Alternatively, you can create and charge a source in a single API request.

curl https://api.omise.co/charges \
  -u $OMISE_SECRET_KEY: \
  -d "amount=1000" \
  -d "currency=JPY" \
  -d "return_uri=http://example.com/orders/345678/complete" \
  -d "source[type]=paypay"

Completing the charge

At this point, you have created a new charge with its status set to pending. Other possible values for charge status are successful, failed, and expired.

The following sections detail how to authorize a charge, receive its completion webhook event, and update its status.

This sequence diagram shows the entire flow.

Authorizing the charge

Redirect the customer to location specified in authorize_uri so that they can authorize the charge.

You can simulate this authorization phase in test mode by visiting the authorize_uri to manually mark the charge as Successful or Failed. After the customer has completed the authorization phase, they will be redirected to the location you specified in return_uri.

Receiving the charge completion event

The best way for you to be notified of the completion of a charge is using webhook events. Set up a location on your server to receive webhook events, and add this location as a webhook endpoint on the dashboard.

Once a charge is completed, a POST request will be sent to this endpoint with the charge response embedded.

The key attribute for the event object contains charge.complete and the data attribute contains the charge object. See Events API for event object structure.

Checking the charge status

After receiving this event, retrieve the charge using its id and confirm that its status matches the status of the charge contained in the event.

If the value of status is successful, you got paid. If the value of status is failed, check the failure_code and failure_message in the charge object for an explanation.

Possible failure codes are listed below.

Voids and refunds

PayPay charges can be partially or fully refunded within one year of the transaction date.

Limits

• Minimum: ¥100
• Maximum: ¥1000000

Next steps

• Charge API
• Source API
• Webhooks API