1️⃣ Checksum Demo (Array + JSON)

2️⃣ Initiate Transaction

RAW JSON SENT:
{
  "body": {"requestType":"Payment","mid":"OljnXB68963303248238","websiteName":"DEFAULT","orderId":"ORDER_1776282300","txnAmount":{"value":"1.00","currency":"INR"},"userInfo":{"custId":"CUST_1776282300"},"callbackUrl":"https://paytm.auraaccessoriessolutions.fun/webhook.php"},
  "head": {
    "signature": "4qY9mjDhRK/8oqr+yEQW2E3F/Fxs232hC912CpjsutZW3g141OZMDLEoPLxi7r25GtRGi7QrAapFfCg5EJskKWKFyQtNXut/iEUCEt4jP3Q="
  }
}

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1776282301127
            [version] => v1
            [signature] => 6vaB0DqM55ZAZIb+GSXaY93s9dgDKqXy5tnWybS0O4Tn5is6Ro+jpEmx6+vRaxyTBhv7qAP0o5YYR3ugi5fX6PKz4s8ymETwC4CCp+ONntg=
        )

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

            [txnToken] => 4067abb0db494b439479e06baec71e151776282301034
            [isPromoCodeValid] => 
            [authenticated] => 
        )

)

3️⃣ Process Transaction (UPI_INTENT)

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1776282302041
            [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=PYTM60416800339379835917XXXXXXXXXXX&tr=60416800339379835917&am=1&cu=INR
                    [orderId] => ORDER_1776282300
                    [cashierRequestId] => 2026041623939e89ea9c24964ae9113f3ce6ec560theia84b4d5fcc48tt280000013
                    [transId] => 20260416210350000251344178861129389
                )

            [riskContent] => Array
                (
                    [eventLinkId] => hxwp1a96b63568da4501b02266a8f89f1934
                )

        )

)

✅ UPI Intent Deeplink