Some things you should know before moving on.

Introduction to Web Programming in Node

• What is a server?
• What is a client?
• What is HTTP?
• What Node library is used to create servers and handle HTTP requests?
• What makes Node.js ideal for scalable network applications?

The Server-Client Model

• What two things are needed to uniquely identify an "Endpoint" on the web?
• What is the commonly used HTTP port on the web (not your localhost)?
• How is a TCP "Connection" specified?
• What's the difference between any old server and a "Web" server?
• How is working with servers almost identical to working with files?
• What are several different URLs you can use to access your local development web server?

Basic HTTP

• What does it mean that HTTP is a "Stateless Protocol"?
• Do all HTTP requests have a Body?
• How can you look up HTTP request and response headers using your Developer Tools?
• What are the 4 (5ish) main HTTP verbs you'll be using?
• What are the only 2 that the browser actually sends?
• What is the difference between a GET and a POST request from the perspective of a resource on your back end?
• What do the HTTP status codes 200, 304 and 500 mean?
• Why is the 304 relevant to your browser and page load speeds?
• What portion of the URL contains the parameters?

Node as a Web Server

• How do you create a web server with Node?
• How do you respond to a request with raw text?
• What header is necessary to set when responding with raw text?
• How do you output to the console that a server is running at a particular endpoint with Node?

Handling HTTP Requests with Node

• How do you respond to an HTTP request with HTML?
• What status code means the file was not found?
• What status code means success?
• What header is necessary to tell the client that the response is HTML?