feat(connector): [AIRWALLEX] Connector Integration

[iemyashasvi]

Description

Added Airwallex connector integration
implements

• createaccesstoken
• auth
• psync

Motivation and Context

Additional Changes

• This PR modifies the API contract
• This PR modifies application configuration/environment variables

How did you test it?

Tested via GRPCurls and HS-UCS cypress

Auth

Request:

grpcurl -plaintext \
  -H "x-connector: airwallex" \
  -H "x-auth: body-key" \
  -H "x-api-key: <REDACTED_API_KEY>" \
  -H "x-key1: <REDACTED_KEY1>" \
  -H "x-merchant-id: <REDACTED_MERCHANT_ID>" \
  -H "x-reference-id: <REDACTED_REFERENCE_ID>" \
  -d '{
    "request_ref_id": {
      "id": "<REDACTED_REQUEST_REF_ID>"
    },
    "amount": 10000,
    "minor_amount": 10000,
    "currency": "USD",
    "capture_method": "AUTOMATIC",
    "auth_type": "NO_THREE_DS",
    "payment_method": {
      "card": {
        "card_number": {"value": "<REDACTED_CARD_NUMBER>"},
        "card_cvc": {"value": "<REDACTED_CVC>"},
        "card_exp_month": {"value": "12"},
        "card_exp_year": {"value": "2025"},
        "card_network": "VISA"
      }
    },
    "address": {},
    "connector_customer_id": "<REDACTED_CONNECTOR_CUSTOMER_ID>",
    "return_url": "https://example.com/return",
    "webhook_url": "https://example.com/webhook",
    "order_category": "pay",
    "enrolled_for_3ds": false,
    "request_incremental_authorization": false,
    "metadata": {
      "order_id": "<REDACTED_ORDER_ID>",
      "customer_email": "<REDACTED_EMAIL>",
      "description": "Test payment for Airwallex with OAuth"
    }
  }' \
  localhost:8000 ucs.v2.PaymentService/Authorize

Response:

{
  "transactionId": {
    "id": "<REDACTED_TRANSACTION_ID>"
  },
  "status": "CHARGED",
  "incrementalAuthorizationAllowed": false,
  "rawConnectorResponse": {
    "value": "<REDACTED_RAW_CONNECTOR_RESPONSE>"
  },
  "statusCode": 200,
  "responseHeaders": {
    "content-length": "1639",
    "content-type": "application/json",
    "date": "Mon, 01 Dec 2025 21:42:31 GMT",
    "server": "APISIX"
  },
  "state": {
    "accessToken": {
      "token": "<REDACTED_ACCESS_TOKEN>",
      "tokenType": "Bearer"
    },
    "connectorCustomerId": "<REDACTED_CONNECTOR_CUSTOMER_ID>"
  },
  "rawConnectorRequest": {
    "value": "<REDACTED_RAW_CONNECTOR_REQUEST>"
  }
}

PSync

Request:

grpcurl -plaintext \
  -H "x-connector: airwallex" \
  -H "x-auth: body-key" \
  -H "x-api-key: <REDACTED_API_KEY>" \
  -H "x-key1: <REDACTED_KEY1>" \
  -H "x-merchant-id: <REDACTED_MERCHANT_ID>" \
  -H "x-reference-id: <REDACTED_REFERENCE_ID>" \
  -d '{
    "request_ref_id": {
      "id": "<REDACTED_REQUEST_REF_ID>"
    },
    "transaction_id": {
      "id": "<REDACTED_TRANSACTION_ID>"
    },
    "amount": 10000,
    "currency": "USD"
  }' \
  localhost:8000 ucs.v2.PaymentService/Get

Response:

{
  "transactionId": {
    "id": "<REDACTED_TRANSACTION_ID>"
  },
  "status": "CHARGED",
  "networkTxnId": "<REDACTED_NETWORK_TRANSACTION_ID>",
  "rawConnectorResponse": {
    "value": "<REDACTED_RAW_CONNECTOR_RESPONSE>"
  },
  "statusCode": 200,
  "responseHeaders": {
    "content-length": "2102",
    "content-type": "application/json",
    "date": "Mon, 01 Dec 2025 21:58:43 GMT",
    "server": "APISIX"
  },
  "state": {
    "accessToken": {
      "token": "<REDACTED_ACCESS_TOKEN>",
      "tokenType": "Bearer"
    }
  },
  "rawConnectorRequest": {
    "value": "<REDACTED_RAW_CONNECTOR_REQUEST>"
  }
}