express-intro

Question 1

How do you add express to your package dependencies?

Answer 1

npm install express

Question 2

What Express application method starts the server and binds it to a network PORT?

Answer 2

listen method

Question 3

How do you mount a middleware with an Express application?

Answer 3

.use method

Question 4

Which objects does an Express application pass to your middleware to manage the request/response lifecycle of the server?

Answer 4

req.method and res.send

Question 5

What is the appropriate Content-Type header for HTTP messages that contain JSON in their bodies?

Answer 5

application/JSON

Question 6

What is the significance of an HTTP request’s method?

Answer 6

tells you what its doing, if its trying to receive data, or send data, delete data

Question 7

What does the express.json() middleware do and when would you need it?

Answer 7

wants to parse json data-to deal with the (incoming) data (object) in the body of the request, during a post or put request