Interswitch Web Checkout Example

{
  "name": "Interswitch Web Checkout — Inline Sandbox Payment",
  "description": "Minimal sandbox example showing a successful Verve card payment via inline-checkout.js followed by a mandatory server-side requery against /collections/api/v1/gettransaction.json.",
  "request": {
    "method": "POST",
    "url": "https://sandbox.interswitchng.com/collections/w/pay",
    "headers": {
      "Content-Type": "application/x-www-form-urlencoded"
    },
    "body": {
      "merchant_code": "MX6072",
      "pay_item_id": "9405967",
      "txn_ref": "ORDER-20260524-0001",
      "amount": 100000,
      "currency": "566",
      "cust_email": "demo@apievangelist.com",
      "site_redirect_url": "https://merchant.example.com/payments/return"
    }
  },
  "requery": {
    "method": "GET",
    "url": "https://sandbox.interswitchng.com/collections/api/v1/gettransaction.json",
    "query": {
      "merchantcode": "MX6072",
      "transactionreference": "ORDER-20260524-0001",
      "amount": 100000
    },
    "response": {
      "ResponseCode": "00",
      "Amount": 100000,
      "TransactionDate": "2026-05-24T12:34:56+01:00",
      "MerchantReference": "ORDER-20260524-0001",
      "PaymentReference": "FBN|WEB|MX6072|24-05-2026|123456|0001",
      "RetrievalReferenceNumber": "614500000001",
      "CardNumber": "627880******0095",
      "LeadBankCbnCode": "011",
      "LeadBankName": "First Bank of Nigeria"
    }
  },
  "verification": [
    "ResponseCode equals '00'.",
    "Amount in the response matches the amount the merchant originally charged."
  ]
}