concepts to review from Express workshop

Express-Workshop-Concepts.md

Express Material (high priority)

HTTP communication

Common methods & their standard meanings The req-res cycle Components of a request or response

Installing Express

Instantiating an express app

Registering and using middleware

how app.use differs from app.get/app.post/app.put etc. what req, res, and next are / do normal vs. error-handling middleware

Commonly-used middleware (what each is & when you need it — setup is copy-paste)

Logging Body parsing Static routing

Routing requests (major topic, study carefully!)

methods vs. URIs routing to sub-resources (e.g. kittens, kittens/123, kittens/123/friends) URI parameters (e.g. kittens/:id) and how to access them Query strings (e.g. kittens?color=calico) and how to access them Request bodies (in JSON or URL-encoded) and how to access them using modular sub-routers created with express.Router()

Back-end (server) vs. front-end (client)