how does rest api work code example

Example 1: rest api

Representational state transfer is a software architectural style that defines
a set of constraints to be used for creating Web services.

Web services that conform to the REST architectural style, called RESTful Web
services, provide interoperability between computer systems on the internet

Example 2: rest api

1) REQUEST
2) RESPONSE
When we send request, we need to know the API
methods/endpoints that are available:
		- read documentation about API methods.
		- Swagger tool, that has API methods and descriptions
simple endpoint:
		…school.com/api/students
Types of Requests:
	GET -> Read data
	POST -> Create/insert data
	PUT -> Update data
	DELETE-> Delete data
I send GET, POST, PUT, DELETE type of API requests to
API endpoint/method and get response.
ORDS (oracle data service) API -> HR Database
ORDS API has methods that we can send request to, and it sends
response with Data from HR database.

Example 3: what is a REST API

An endpoint is one end of a communication channel. 
it would be represented as the URL of a server or service.
In REST APIs, the resource typically refers to some object or set of objects 
that are exposed at an API endpoint. 
An endpoint by itself is just 
a reference to a URL that accepts web requests that may or may not be RESTful.

Example 4: REST API

Cannot GET /api/addUser