Express JS

Question 1

What is Express JS?

Answer 1

A Node.js framework designed for building APIs, web applications, and cross-platform mobile apps.

Question 2

routing

Answer 2

Refers to how an application responds to client requests to a particular endpoint, which is a URI (or path) and a specific HTTP request method.

https://expressjs.com/en/starter/basic-routing.html

Question 3

route parameters

Answer 3

A placeholder where a user provides the data. We use request and params to access the data and build logic.

Example: http://localhost:5000/api/data/:productID

Question 4

get query strings and parameters

Answer 4

example: test.com/query?name=jim&id=5

link: https://stackabuse.com/get-query-strings-and-parameters-in-express-js/

Question 5

middleware

Question 6

app.get(“/”, (req, res) => {res.send(“<h1>test</h1>”)})

Answer 6

listens for a get request to the homepage (“/”) and sends a response.

Question 7

app.use()

Question 8

app.use(express.static())