Javascript - connect to API and process response

I need to set up a simple, small javascript app to get data from a live stream, and save the streaming data to a Mysql database. Adapt this demo: [login to view URL] The demo shows a chart of stock prices using live streaming updates. The live stream is powered by Lightstreamer. [login to view URL] Streaming data API: [login to view URL] I will provide an AWS environment with EC2, RDS and Lightstreamer installed. I will provide you with access to the AWS environment, and authentication for the API. Summary: 1. Query a URL that I provide to get authentication details (auth details are dynamic rather than static). 2. Use auth details to connect to streaming API using Lightstreamer. 2. Subscribe to market data feed and receive data for: stock prices, account balance, trade confirm, trade open position update. 3. Save data from the feed to Mysql database Detail: Github code: [login to view URL] Here is some code you can use. I will provide you with a URL to get the latest auth details shown below as variable names starting with STREAMING_API_ function connectToLightstreamer() { // include the Lightstreamer LightstreamerClient module using [login to view URL] require(["LightstreamerClient"], function(LightstreamerClient) { // Instantiate Lightstreamer client instance lsClient = new LightstreamerClient( STREAMING_API_ENDPOINT ); // Set up login credentials [login to view URL]( STREAMING_API_ACCOUNT_ID ); [login to view URL]("CST-" + STREAMING_API_CLIENT_TOKEN + "|XST-" + STREAMING_API_XST_TOKEN); // Add connection event listener callback functions [login to view URL]({ onListenStart: function() { [login to view URL]('ListenStart'); }, onStatusChange: function(status) { [login to view URL]('Lightstreamer connection status:' + status); } }); // Connect to Lightstreamer [login to view URL](); }); } function connectToLightstreamer(itemList, fieldList) { // include the Lightstreamer Subscription module using [login to view URL] require(["Subscription"], function(Subscription) { var subscription = new Subscription( "MERGE", itemList, // e.g. {"MARKET:[login to view URL]","MARKET:[login to view URL]"} fieldList // e.g. {"BID", "OFFER"} ); // Set up Lightstreamer event listener [login to view URL]({ onSubscription: function() { [login to view URL]('subscribed'); }, onUnsubscription: function() { [login to view URL]('unsubscribed'); }, onSubscriptionError: function(code, message) { [login to view URL]('subscription failure: ' + code + " message: " + message); }, onItemUpdate: function(updateInfo) { // Lightstreamer published some data var epic = [login to view URL]().split(":")[1]; [login to view URL](function(fieldName, fieldPos, value) { // SAVE THIS DATA TO RDS DATABASE // Alternatively, if the field is JSON, such as in a confirm message: var confirm = [login to view URL](value); [login to view URL]('json: ' + [login to view URL]) } }); } }); // Subscribe to Lightstreamer [login to view URL](subscription); }