Alipay (In-Store)

Accept in-store payments from Alipay users through your point-of-sale system (POS) or the OmisePay application using the Alipay In-Store payment method.

This payment method allows you to gain access to one of China's most popular online payment methods without needing an Alipay account or registering for a Chinese bank account. This guide walks you through the payment flow and details on how to implement.

This guide is for accepting in-store Alipay payments using a barcode reader. See Get paid with Alipay for accepting Alipay payments using the OmisePay application. See Alipay (Online) for accepting online Alipay payments.

How to enable

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

To enable Alipay (In-Store), send an email requesting this feature to You will need to review and accept new terms and conditions.

Payment flow

The following diagram shows the interactions among the customer, merchant, Omise, and Alipay in a typical Alipay In-Store charge.


  1. When the payer is ready to checkout, they open the Alipay application on their phone and click the Pay button.
  2. You scan the barcode generated in the Alipay application using your barcode reader
  3. You create a charge (status=pending) using the barcode, payment information, details about your store and terminal.
  4. Alipay will process the charge. In some cases, the payer may be required to authorize the payment using the Alipay application.
  5. Once processed, a webhook event will be sent to the your server (if configured) with an updated charge status.
  6. You verify the charge status by retrieving the charge.

If the charge is marked status=successful the amount has been successfully paid.


To create a charge using Alipay (In-Store), make the following API requests.

  1. Create a new payment source (type: barcode_alipay) 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 Alipay (In-Store) source on the client (a customer's browser or mobile phone). Use your secret key to create the Alipay (In-Store) 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 type, amount, currency, barcode, store_id, store_name, and terminal_id.

The following examples demonstrate the creation of a new Alipay (In-Store) source for ฿4,000. Replace the omise_public_key and $OMISE_PUBLIC_KEY variables with your test public key found on the dashboard:

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


Omise.createSource('barcode_alipay', {
  "amount": 400000,
  "currency": "THB"
  "type": "barcode_alipay"
  "barcode": "1234567890"
  "store_id": "store_1234"
  "store_name": "Some Store"
  "terminal_id": "POS-01"
}, function(statusCode, response) {

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

curl \
  -d "amount=400000" \
  -d "currency=THB" \
  -d "type=barcode_alipay" \
  -d "barcode=1234567890" \
  -d "store_id=store_1234" \
  -d "store_name=Some Store" \
  -d "terminal_id=POS-01"
  "object": "source",
  "id": "src_test_5irtsrqq4cp85u1phju",
  "livemode": false,
  "location": "/sources/src_test_5irtsrqq4cp85u1phju",
  "created_at": "2020-02-03T04:00:59Z",
  "type": "barcode_alipay",
  "flow": "offline",
  "amount": 400000,
  "currency": "THB",
  "mobile_number": null,
  "phone_number": null,
  "references": null,
  "name": null,
  "email": null,
  "barcode": "1234567890",
  "store_id": "store_1234",
  "store_name": "Some Store",
  "terminal_id": "POS-01",
  "installment_term": null,
  "zero_interest_installments": null,
  "scannable_code": null

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

Creating a charge

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

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

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

curl \
  -d "amount=400000" \
  -d "currency=THB" \
  -d "source=$SOURCE_ID"
  "object": "charge",
  "id": "chrg_test_5irtsrt71sfy1rrvca9",
  "livemode": false,
  "location": "/charges/chrg_test_5irtsrt71sfy1rrvca9",
  "created_at": "2020-02-03T04:00:59Z",
  "amount": 400000,
  "currency": "THB",
  "funding_amount": 400000,
  "funding_currency": "THB",
  "fee": 6600,
  "fee_vat": 462,
  "interest": 0,
  "interest_vat": 0,
  "net": 392938,
  "description": null,
  "metadata": {},
  "status": "pending",
  "capture": true,
  "authorized": false,
  "schedule": null,
  "reversed": false,
  "reversed_at": null,
  "expires_at": "2020-02-04T04:00:59Z",
  "expired": false,
  "expired_at": null,
  "voided": false,
  "paid": false,
  "paid_at": null,
  "transaction": null,
  "refunded_amount": 0,
  "refunds": {
    "object": "list",
    "from": "1970-01-01T00:00:00Z",
    "to": "2020-02-03T04:01:00Z",
    "offset": 0,
    "limit": 20,
    "total": 0,
    "order": "chronological",
    "location": "/charges/chrg_test_5irtsrt71sfy1rrvca9/refunds",
    "data": []
  "link": null,
  "return_uri": null,
  "failure_code": null,
  "failure_message": null,
  "card": null,
  "customer": null,
  "ip": null,
  "dispute": null,
  "source": {
    "object": "source",
    "id": "src_test_5irtsrjud7runrfguq9",
    "livemode": false,
    "location": "/sources/src_test_5irtsrjud7runrfguq9",
    "created_at": "2020-02-03T04:00:58Z",
    "type": "barcode_alipay",
    "flow": "offline",
    "amount": 400000,
    "currency": "THB",
    "mobile_number": null,
    "phone_number": null,
    "references": {
      "expires_at": "2020-02-04T04:00:59Z",
      "device_id": null,
      "customer_amount": null,
      "customer_currency": null,
      "customer_exchange_rate": null,
      "omise_tax_id": null,
      "reference_number_1": null,
      "reference_number_2": null,
      "barcode": null,
      "payment_code": null,
      "va_code": null
    "name": null,
    "email": null,
    "barcode": "1234567890",
    "store_id": "store_1234",
    "store_name": "Some Store",
    "terminal_id": "POS-01",
    "installment_term": null,
    "zero_interest_installments": null,
    "scannable_code": null
  "platform_fee": {
    "percentage": null,
    "fixed": null,
    "amount": null
  "disputable": false,
  "capturable": false,
  "reversible": false,
  "refundable": false,
  "zero_interest_installments": true,
  "authorize_uri": null

Setting the charge to expire

Alipay In-Store charges that have not yet been authorized (status=pending) can be set to expire.

curl$CHARGE_ID/expire \
  -X POST \

Creating a source and charge

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

curl \
  -d "amount=400000" \
  -d "currency=THB" \
  -d "source[type]=barcode_alipay" \
  -d "source[barcode]=1234567890" \
  -d "source[store_id]=store_1234" \
  -d "source[store_name]=Some Store" \
  -d "source[terminal_id]=POS-01"

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.

sequenceDiagram participant customer participant omise.js participant merchant participant participant offline provider customer->>omise.js: Send payment details for purchase omise.js->> Request source using payment details>>omise.js: Return source omise.js->>merchant: Merchant gets returned source merchant->> Request charge using source and purchase details Send "charge.create" webhook>>merchant: Return charge customer->>offline provider: Provide payment or charge authorization at offline provider offline provider-->> Return result of payment or charge authorization Send "charge.complete" webhook merchant-xcustomer: Send charge result (e.g. via email)

Authorizing the charge

In some cases, the payer may be required to confirm the payment on their Alipay app.

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

Possible failure codes are listed below.

Failure Code Description
payment_cancelled Payment cancelled by payer.
failed_processing General payment processing failure.
insufficient_balance Insufficient funds in the account or the payment method has reached its limit.
payment_rejected Payment rejected by issuer.
timeout Payer did not take action before charge expiration.

Voids and refunds

Alipay (In-Store) charges can be partially or fully refunded within 12 months of the transaction date.


  • Minimum: 2000 (THB20.00)
  • Maximum: 100000000 (THB1,000,000.00)

Next steps