OpenAppDeepLinkv2.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Deep Link Test</title>
    <script>
        // Function to get a specific query parameter from the current page's URL
        function getQueryParam(param) {
            const urlParams = new URLSearchParams(window.location.search);
            return urlParams.get(param);
        }

        window.onload = function() {
            // Get the appUrl and fallbackUrl from the query parameters
            let appUrl = getQueryParam("appUrl");
            const fallbackUrl = getQueryParam("fallbackUrl") || "https://www.kvb.co.in/personal/digital-products/kvb-dlite-mobile-banking/";

            // If appUrl is missing, show an error message and exit
            if (!appUrl) {
                alert("Error: appUrl parameter is missing!");
                return;
            }

            // Get additional parameters dynamically from the query string
            const redirectTo = getQueryParam("RedirectTo");
            const isPostLogin = getQueryParam("isPostLogin");

            // Construct extra query parameters string if they exist
            let extraQueryString = "";
            if (redirectTo) extraQueryString += `RedirectTo=${encodeURIComponent(redirectTo)}`;
            if (isPostLogin) {
                extraQueryString += (extraQueryString ? "&" : "") + `isPostLogin=${encodeURIComponent(isPostLogin)}`;
            }

            // Append extra parameters to the appUrl if they exist
            if (extraQueryString) {
                if (appUrl.includes("?")) {
                    appUrl += "&" + extraQueryString;
                } else {
                    appUrl += "?" + extraQueryString;
                }
            }

            console.log("Final appUrl:", appUrl); // For debugging

            // Start time to measure if the app opens
            const startTime = Date.now();

            // Attempt to open the app using window.location
            window.location = appUrl;

            // Set a timeout to check if the app opened or not
            setTimeout(function() {
                const endTime = Date.now();

                // If the time difference is less than 1500ms, assume the app did not open
                if (endTime - startTime < 1500) {
                    // Redirect to the fallback URL if the app did not open
                    window.location.href = fallbackUrl;
                } else {
                    // Close the tab if the app opened successfully
                    window.close();
                }
            }, 1000);
        };
    </script>
</head>
<body>
    <h2>Attempting to open the app...</h2>
    <p>If the app is installed, it will open automatically. Otherwise, you'll be redirected shortly.</p>
</body>
</html>