1️⃣ Checksum Demo (Array + JSON)

2️⃣ Initiate Transaction

RAW JSON SENT:
{
  "body": {"requestType":"Payment","mid":"OljnXB68963303248238","websiteName":"DEFAULT","orderId":"ORDER_1773681559","txnAmount":{"value":"1.00","currency":"INR"},"userInfo":{"custId":"CUST_1773681559"},"callbackUrl":"https://paytm.auraaccessoriessolutions.fun/webhook.php"},
  "head": {
    "signature": "YALH3BVxIvFuM5Ic36w8XT17RqqiTibGaPIW1aam1JMe2lS9NaI2AlguY4nK51S7E6YQIxG1gO5RXNwE/WsPPOZEsroyKG7oLgQ03haUPLI="
  }
}

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1773681567253
            [version] => v1
            [signature] => 8BBWq1CM7zJ7iUoXFrvcX1NSe8z+07jl3p9GvaeJWf6aqkuXbklHBOPYIlelpi0974Or0Grbrw/D+iv/DnjIxSNt+YYdY1FbMRyZroHBF+A=
        )

    [body] => Array
        (
            [resultInfo] => Array
                (
                    [resultStatus] => S
                    [resultCode] => 0000
                    [resultMsg] => Success
                )

            [txnToken] => e020f45d6cc344769043a55ecf7216621773681567091
            [isPromoCodeValid] => 
            [authenticated] => 
        )

)

3️⃣ Process Transaction (UPI_INTENT)

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1773681568173
            [version] => v1
        )

    [body] => Array
        (
            [resultInfo] => Array
                (
                    [resultStatus] => S
                    [resultCode] => 0000
                    [resultMsg] => Success
                )

            [deepLinkInfo] => Array
                (
                    [deepLink] => upi://pay?pa=paytm-83965700@ptybl&pn=WIGOPE%20TECHNOLOGIES%20PRIVATE%20LIMITED&mc=5722&tid=PYTM60316806259595508749XXXXXXXXXXX&tr=60316806259595508749&am=1&cu=INR
                    [orderId] => ORDER_1773681559
                    [cashierRequestId] => 202603162373d4c08833846ac9c7666179eb57efatheia866d46d85dpp9x90000013
                    [transId] => 20260316210550000240435910383518547
                )

            [riskContent] => Array
                (
                    [eventLinkId] => atyeb781aec03d584bfa810bdbc0f48332f7
                )

        )

)

✅ UPI Intent Deeplink