Web Service Rest API | Complete Demonstration with Examples | Rest API Explorer ServiceNow

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Rest API or RESTful API is web service API. It stands for Representational State Transfer, it is an architecture which determines that how the API will look like.
Below are details related to Rest API in ServiceNow:
ServiceNow REST API is a web service that enables communication between ServiceNow instances and other applications. The REST API uses HTTP methods, such as GET, POST, PUT, and DELETE, to access and manipulate data stored in ServiceNow.
ServiceNow REST API enables developers to integrate ServiceNow with other systems and applications, such as mobile devices, web applications, and other IT systems. By using the REST API, developers can retrieve, create, update, and delete records in ServiceNow, as well as perform complex operations, such as filtering and pagination of data.
ServiceNow REST API supports both JSON and XML data formats and is based on Representational State Transfer (REST) architecture, which makes it easy to use and widely adopted. ServiceNow also provides comprehensive documentation and support for the REST API, making it easier for developers to integrate ServiceNow with other systems and applications.
The ServiceNow REST API provides a scalable and flexible way to integrate ServiceNow with other systems and applications, and helps organizations to improve their IT service management processes and deliver better services to their customers.

It is basically the set of rules or constraints that developer should follow when they create their Web Service API’s.