This nodeJS application is a simple webserver to support portchain's coding challenge for the role of Devops.

Architecture

The web server is a single process nodeJS application that exposes a HTTP and websocket endpoint. The web interface provides a real time view into the node process by exposing its memory and CPU usage as well as its uptime.

• A nodeJS application (Tested with NodeJS version 12 and 14)
• Listens to port 3000 by default but can be configured through the PORT environment variable
• Single process, no need to run multiple nodes

Key data points

• The webserver serves 2 protocols on the same port: HTTP and WebSocket.
• The port used by the webserver is 3000 by default but that can be changed with the PORT environment variable.
• The application logs the number of clients that are connected and the data points displayed in the UI.

Environment variables

• PORT the port number to which the
• NODE_ENV set it to production when deployed