Week 6 -ER Diagrams and Authentication

This week we created and learned about ER diagrams as we move further towards our second checkpoint project in which we will need this. We also learned how to embed authentication into our code/express, and about bearer tokens.

What’s the difference between operational and programmer errors? | Operational errors are within the system, programmer errors are bugs in the program.

What is ‘event-driven’ programming? | Event-driven programming is a programming paradigm. This allows the program to work in a flow that is determined by the events, actions, sensor outputs etc.

What are ‘worker processes’? | Worker processes handle the request sent to the web server.

Describe how Node.js can be made more scalable. | Scale the program either horizontally or vertically, or have multiple processes running on the same port.

Explain global installation of dependencies. | It puts the module into your Node.js path, so that it is accessible from any project.

Explain RESTful Web Service. | RESTful web services are loosely coupled, lightweight web services that are particularly well suited for creating APIs for clients spread out across the internet.