The Hypertext Transfer Protocol (HTTP) is designed to enable communications between clients and servers.HTTP works as a request-response protocol between a client and server.A web browser may be the client, and an application on a computer that hosts a web site may be the server.Įxample: A client (browser) submits an HTTP request to the server then the server returns a response to the client. Since we have installed the Postman app successfully its time to start testing the API with Postman by making first ever HTTP request to server. Making the first http request in Postman: If you have accomplished till this step we are all set to take our next flight. For installation, unzip the file, then double click on Postman to open the app.Īfter you have installed Postman successfully, your postman window should look like: Alternatively, you can sign up with google.ģ. Once you have the application window up, click on Take me straight to the app. After completion, it will automatically start opening the Postman tool.Ħ. First it will install the POSTMAN application.ĥ. Click on the exe file to install it on the system. Once you download the exe file, you will be required to install the application.Ĥ. Click on “Download” link for Windows by selecting either 32 or 64 bit system.ģ. Click “Move to Applications Folder” to ensure future updates can be installed correctly. You will be prompted to move file into the “Applications” folder. Once you’ve downloaded and unzipped the app, double click on Postman. You can organize your requests into collections and folders, share common values across requests with environment variables, script tests with the built-in node.js based runtime, and automate it all with Postman’s very own CLI - Newman. But underneath, Postman is built upon an extensive set of power tools that are incredibly easy to use. Postman is a simple GUI for sending HTTP requests and viewing responses. When you need to create an API test suite, Postman delivers. An API test suite can watch out for these API breaking changes by running a slew of tests against your endpoint. A simple configuration change to an entity or updating Drupal core can alter an API response and lead to application-breaking changes on the front-end. Reliable API calls are critical to any decoupled application. Step by step guide to perform API Testing using Postman Why API Testing?
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