1️⃣ Checksum Demo (Array + JSON)

2️⃣ Initiate Transaction

RAW JSON SENT:
{
  "body": {"requestType":"Payment","mid":"OljnXB68963303248238","websiteName":"DEFAULT","orderId":"ORDER_1773681624","txnAmount":{"value":"1.00","currency":"INR"},"userInfo":{"custId":"CUST_1773681624"},"callbackUrl":"https://paytm.auraaccessoriessolutions.fun/webhook.php"},
  "head": {
    "signature": "W8m/Eg2wpwABnEa27I73hZwvsHduk+mHUf/LnW977wbFDYuiX3V9wxjN9iwgFaA0PNp1I7SVEPQN6rDFjv38eRqhmpa6czSGEM7Jsn3EHNE="
  }
}

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1773681632404
            [version] => v1
            [signature] => 1RUsfhI0PvPwCpXavGAKtnLMwRj2Xe0AVNxQN4n0j/2uYm8hG8F3cu3Df82fPAx4Zk4WbF6GolVIwX6va+ZhVIR8DrXUzSzzU0vI6XlXmKI=
        )

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

            [txnToken] => 5d5f8719d3a24b889ba15366a6bfe0551773681632285
            [isPromoCodeValid] => 
            [authenticated] => 
        )

)

3️⃣ Process Transaction (UPI_INTENT)

Array
(
    [head] => Array
        (
            [responseTimestamp] => 1773681633289
            [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=PYTM60316806264220747785XXXXXXXXXXX&tr=60316806264220747785&am=1&cu=INR
                    [orderId] => ORDER_1773681624
                    [cashierRequestId] => 202603162d42c5f212be44397b7ef160a4dd895d3theia866d46d85dt8jbx0000013
                    [transId] => 20260316210330000240436183557981148
                )

            [riskContent] => Array
                (
                    [eventLinkId] => dfvf24c4b533c99e4c20ae25cda2047243d5
                )

        )

)

✅ UPI Intent Deeplink