HTTP

Question 1

What is a client?

Answer 1

service or resource requester that receives info from a server

ex/ browser

Question 2

What is a server?

Answer 2

handles requests from client

will provide resource or service

Question 3

Which HTTP method does a browser issue to a web server when you visit a URL?

Answer 3

GET

Question 4

What three things are on the START LINE of an HTTP request message?

Answer 4

MTV
method, target, version

1. HTTP method that describes action to be performed ex/ (GET, PUT, POST) or (HEAD, OPTIONS)
2. request target, usually a URL or absolute path
3. HTTP version

Question 5

What three things are on the START LINE of an HTTP response message?

Answer 5

VCS
version, code, text

1. protocol version
2. status code for success or fail
3. status text

Question 6

What are HTTP headers?

Answer 6

ways of passing additional info btwn server and client as needed

GRR

Request Headers:

• general (apply to msg as whole)
• request headers (modify request with specifics)
• representation headers (describe original format and encoding)

Response headers:

• general (apply to msg as whole)
• response headers (give additional info about server)
• representation headers (describe adddtl format and encoding)

Question 7

Where would you go if you wanted to learn more about a specific HTTP Header?

Answer 7

MDN

Question 8

Is a body required for a valid HTTP request or response message?

Answer 8

no

Question 9

What is on the first line of an HTTP response message?

Answer 9

• response status of success/failure

Question 10

What does fetch() return?

Answer 10

returns a Promise so you can use the then() and catch() methods to handle it:

Question 11

What is the default request method used by fetch()?

Answer 11

GET

Question 12

How do you specify the request method (GET, POST, etc.) when calling fetch?

Answer 12

2nd arg as object, set method as string

fetch(‘https://example.com/profile’, {
method: ‘POST’, // or ‘PUT’
})