This repository contains REST API using Mongodb, Node.js, Express.js.
REST stands for REpresentational State Transfer. REST is web standards based architecture and uses HTTP Protocol. It revolves around resource where every component is a resource and a resource is accessed by a common interface using HTTP standard methods. REST was first introduced by Roy Fielding in 2000.
A REST Server simply provides access to resources and REST client accesses and modifies the resources using HTTP protocol. Here each resource is identified by URIs/ global IDs. REST uses various representation to represent a resource like text, JSON, XML but JSON is the most popular one.
Following four HTTP methods are commonly used in REST based architecture.
This is used to provide a read only access to a resource.
This is used to create a new resource.
This is used to remove a resource.
This is used to update a existing resource or create a new resource.
A web service is a collection of open protocols and standards used for exchanging data between applications or systems. Software applications written in various programming languages and running on various platforms can use web services to exchange data over computer networks like the Internet in a manner similar to inter-process communication on a single computer. This interoperability (e.g., communication between Java and Python, or Windows and Linux applications) is due to the use of open standards.
Web services based on REST Architecture are known as RESTful web services. These webservices uses HTTP methods to implement the concept of REST architecture. A RESTful web service usually defines a URI, Uniform Resource Identifier a service, which provides resource representation such as JSON and set of HTTP Methods.
Sr.No. URI HTTP Method POST body Result 1 listUsers GET empty Show list of all the users. 2 addUser POST JSON String Add details of new user. 3 deleteUser DELETE JSON String Delete an existing user. 4 :id GET empty Show details of a user. I'm keeping most of the part of all the examples in the form of hard coding assuming you already know how to pass values from front end using Ajax or simple form data and how to process them using express Request object
we use this usually in server to apply extra functionality on the application . some time it is very very usefull for us. In short it makes our application beautiful