Develop a script that establishes a WebSocket (wss) connection only once and ensures that a 'ping' message is sent every 30 seconds. If the WebSocket connection is closed for any reason, the script should automatically reopen it. Additionally, implement a

. // First we should use the geSoc() method to establish the initial Websocket (wss) connection. let ws = new WebSocket("wss://mywebsocket.com/"); // Add an event listener to the connection so that when it is opened, the 'ping' message is sent every 30 seconds. ws.onopen = function() { setInterval(function() { ws.send('ping'); }, 30000); }; // Add an event listener to the connection so that when it is closed, the connection is automatically re-established. ws.onclose = function() { //re-establish connection ws = new WebSocket("wss://mywebsocket.com/"); }; // Lastly, implement a 'device publish' functionality that generates and sends 30 transactions per second (tps) consistently for a duration of 2 hours as part of a test scenario. let transactionsPerSecond = 30; let duration = 7200000; // 2 hours in milliseconds let interval = 1000/transactionsPerSecond; // calculating the interval setInterval(function() { // Generate and publish the transaction... ws.send(transaction); }, interval); // Set a timeout to stop after the given 2 hour duration has passed. setTimeout(function() { clearInterval(interval); }, duration);