The REST acronym is defined as a “REpresentational State Transfer” and is designed to take advantage of existing HTTP protocols when used for Web APIs. It is very flexible in that it is not tied to resources or methods and has the ability to handle different calls and data formats. Because REST API is not constrained to an XML format like SOAP, it can return multiple other formats depending on what is needed. If a service adheres to this style, it is considered a “RESTful” application. REST allows components to access and manage functions within another application.
REST was initially defined in a dissertation by Roy Fielding’s twenty years ago. He proposed these standards as an alternative to SOAP (The Simple Object Access Protocol is a simple standard for accessing objects and exchanging structured messages within a distributed computing environment). REST (or RESTful) defines the general rules used to regulate the interactions between web apps utilizing the HTTP protocol for CRUD (create, retrieve, update, delete) operations.
An API (or Application Programming Interface) provides a method of interaction between two systems.
A RESTful API (or application program interface) uses HTTP requests to GET, PUT, POST, and DELETE data following the REST standards. This allows two pieces of software to communicate with each other. In essence, REST API is a set of remote calls using standard methods to return data in a specific format.
The systems that interact in this manner can be very different. Each app may use a unique programming language, operating system, database, etc. So, how do we create a system that can easily communicate and understand other apps?? This is where the Rest API is used as an interaction system.
When using a RESTful API, we should determine in advance what resources we want to expose to the outside world. Typically, the RESTful API service is implemented, keeping the following ideas in mind:
The features of the REST API design style state:
For REST to fit this model, we must adhere to the following rules:
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We are going to take a crack at solving the “SOAP vs REST vs JSON” dispute once and for all. You’re most likely aware of what those acronyms mean and what they have in common. But if you’re not, here it comes: they all have something to do with web services.
Web services are responsible for online machine-to-machine communication. Computers use them to communicate with each other over the internet. In fact, it’s only the front-end interfaces of websites and applications that reside on end user’s devices.
When it comes to the way you create web services, there are currently two main competing approaches: SOAP and REST. Due to the software industry being the way it is — i.e., loving to fight — , that has led to intense debates. “SOAP vs REST” is, in some ways, the new “tabs vs spaces”. Only this time, SOAP and REST aren’t even in the same category of things, as you’ll see in a while. To make things even more confusing, people often add yet more concepts to the mix, such as JSON.
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In this video, we work with JSONs, which are a common data format for most web services (i.e. APIs). Thank you for watching and happy coding!
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This Edureka video on ‘REST vs SOAP’ will give you an introduction to what is REST and SOAP API and then explain some of the important differences between both of these Application Programming Interfaces. In this Rest vs Soap API video following topics have been covered: