questions6

Question 1

HTTP(Hyper Text Transfer Protocol)

Answer 1

Hyper Text Transfer Protocol, the most common protocol for communication between multiple applications.
Parts of the message of HTTP:
* startline - includes HTTP method, request-target(URL), HTTP version
* headers(optional) - describe the request or the body included in the message
* body(optional) - contains data associated with request

Question 2

HTTP (Hyper Text Transport Protocol) methods

Answer 2

• GET - should only get data
• POST - usually is using for creating entity or submitting data
• PUT - usually replaces the whole entity with a whole body
• DELETE - deletes the specified entity
• PATCH - usually applies partial updates to entity
  _____
  (for CORS(cross origin requests) preflight request) - is a set of rules that not allowed you to ask the server for the information for example domain.
• OPTIONS
• HEAD
• CONNECT
• TRACE

Question 3

What kinds of transports do you know in js?

Answer 3

• HTTP
• WebSockets - permanent channel between two applications for example back end and front end, where both are listening for updates or notifications from each other.

Question 4

REST API(Abstract program interface)

Answer 4

API - Abstract program interface. REST API is an architectural approach for back-end API.
We are creating endpoints /collection/id
the collection is usually plurals
id is pointing to the current entity with this id.
We are using HTTP method as intended.

Question 5

back-end API

Answer 5

is a programming interface that helps developers to interact with back-end services for example server.