Necessary npm packages are: fs node-fetch and ws

To execute in local diriectory:

1. update the credentials.js file with your websocket url, clientid and secret, working directory and bbox.
2. Run the following command from the local directory:

$ node websocket.js [Predix-Zone-ID] [eventType] [secondEventType]

Note: [secondEventType] is optional and only functional for the Parking API and Environmental API

Sample commands to execute:

$ node websocket.js Montreal-IE-TRAFFIC TFEVT 

$ node websocket.js Montreal-IE-PARKING PKIN PKOUT

Output:

• All logs will be published to a file made up of the predix zone id and eventType(s) that ends in logs.txt
• All data will be published to a file made up of the predix zone id and eventType(s) that ends in data.txt