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Go to File -> New -> Project and enter a project name and its location to start a new project. Creating a new project and setting up API automation test Please refer to the guide for all the basic steps, from downloading to activating the build Installing and Setting up Katalon Studio. Implementing REST API & RESTful web services testing using Katalon Studio Installing and setting up Katalon Studio However, it can also refer to the transfer of the application state when we click on the next link and get transferred to another page. This is what is meant by the word ‘transfer’. When the resource gets transferred from the web server, we send a request for the resource and we get a representation back and whatever formats the resources presented. And as I click through all these different pages, the application state keep changing from one state to the next. So what’s about the word ‘state’? Take an example, whenever I click a link, the application state changes and I am presented with another resource, which is a page with all the other content of that resource.
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We always request the resource when clicking on a link or type in a URL, no wonder that URL stands for Uniform Resource Locator. It’s also helpful to think of the whole web as a bunch of resources. Think of actual resources, physical things located on a web server database or stored a web server hard drive, and representations of those resources as copies in either readable format for human beings like HTML or image or easy-to-work-with formats for programmers like JSON and XML.
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It doesn’t send you the database that it has, but rather a representation of that resource in a format that is readable, for example, HTML or image. The second important point to understand is that web server doesn’t actually deliver the resources. And the web server responses and delivers the request your resource to your browser as in a formal web page or whatever format that the resource is in. What’s important to understand here is, everytime you type a URL in a browser or click on a webpage link, you’re sending a request for a specific resource or resources from a web server. Here’s the HTTP protocol:Įverytime you type a URL in a browser, you’re sending a request to the web server and the web server responds with a resource. To understand how exactly we get a representation of resources, you need to look at how everyone interacts with web pages, the client-server model, and the HTTP. The word ‘representational’ means there is a transfer of representations of resources and the resources can be pretty much anything that can be named on the Internet like a list of users or a list of photos, comments, posts, articles, pages, videos, books, profiles, etc. So here in the article, let’s look at all these words individually and learn what they all mean. Some of the simplest questions that might come up when you’re first starting to understand REST API is, what is being represented exactly, what is a state, and what is being transferred. REST API, which stands for representational state transfer application programming interface. REST API & RESTful web services explained