1️⃣ Checksum Demo (Array + JSON)

2️⃣ Initiate Transaction

RAW JSON SENT:
{
  "body": {"requestType":"Payment","mid":"OljnXB68963303248238","websiteName":"DEFAULT","orderId":"ORDER_1776271166","txnAmount":{"value":"1.00","currency":"INR"},"userInfo":{"custId":"CUST_1776271166"},"callbackUrl":"https://paytm.auraaccessoriessolutions.fun/webhook.php"},
  "head": {
    "signature": "kuGSnLc7mwkphKywb6iHPUP18WeUvvxd+SczyP5WT219RBoO/NR9nLzNKRc8cDT+ayJNi7K2/cnU8XPOLlt7z9Cl8LjHLvUcwFxasR3CYbg="
  }
}

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1776271167006
            [version] => v1
            [signature] => kzYIFtZxgHvt/xFrTGWQ2hvcQYf8WNq96mtutu2R0etrN7O7a3gplg3blUGNKpUAOiFaMf7izFhf7DVPDrggRE9qmD9/9o0306929zhuwoc=
        )

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

            [txnToken] => 5581e1d0e76c4c9bb0627dbe02101e861776271166921
            [isPromoCodeValid] => 
            [authenticated] => 
        )

)

3️⃣ Process Transaction (UPI_INTENT)

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1776271167919
            [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=PYTM60415806087792526353XXXXXXXXXXX&tr=60415806087792526353&am=1&cu=INR
                    [orderId] => ORDER_1776271166
                    [cashierRequestId] => 20260415233ef69f142aa4faf98d9662f2053ce10theia84b4d5fcc49cb660000013
                    [transId] => 20260415210460000251297479019022117
                )

            [riskContent] => Array
                (
                    [eventLinkId] => mlne51ef2f3afee54912914cde4f8c1dfd2e
                )

        )

)

✅ UPI Intent Deeplink