1.
What's in it for you?
• Introduction
• What is Express JS?
• What is REST API?
• HTTP request types
• Building RESTful API

2.
Introduction
• REST APIs are the standard way to send and receive data for web services
• Rest API is flexible and can handle multiple types of calls
• RESTful API is very popular and very commonly used to create APIs for web-
based applications
Client REST API DATABASE

3.
What is Express JS?
Express is a Node.js framework designed for building APIs, web
applications and cross-platform mobile apps, It is used as a server- side
scripting language.
Express is high performance, fast, lightweight, and unopinionated

4.
What is REST API?
• REpresentational State Transfer (REST) is a popular architecture
which is used to create web services
• Application Program Interface (API) is a code that allows two
software programs to communicate with each other
It is a software that allows two applications to communicate with
each other with the help of internet and various devices

5.
HTTP Request types
GET – It is used to request data
from the server but mainly this
method is used to read data
PATCH – It is used to update the
data, or to change/replace it
POST – Post method is used to
create new or to edit already
existing data
DELETE – It is used to delete the
data completely from the server
GET
PATCH
POST
DELETE
CLIENT sends a
request
Server sends a
response
HTTP
JSON