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In this article, we'll see how we can use API Tester application to test WebSocket based APIs easily and why it's my goto application for mobile app testing.
So let's get started.
API Tester mobile application is on trending nowadays. One of its first kind, this Application has revolutionized the ways of API testing by providing all the required functionalities that a backend developer or an API tester requires within a sleek and user-friendly mobile application.
With API Tester mobile app you can test Restful API requests, SOAP API requests, GraphQL-based requests, or even WebSocket connection to test real-time client-server communication.
I have been using API Tester mobile app for quite some time now. Along with the other tools used to cover development and API testing stack, the API Tester Mobile App becomes a daily usage tool for API request validation tasks.
Previously, I tested the backend of an Ecommerce App and CRUD operations of a User Management system, testing Add, Update, and Delete data requests.
Apart from the basic features like:
it also provides a quick way to test WebSocket based applications.
WebSocket based applications are not that easy to test because you have to make sure that both the client and server-side applications are running over a valid URL. The URL is then validated to create a WebSocket connection to test the client and server response in real-time.
To do WebSocket based API testing, we will take an example of one-to-one chat application developed in Node.js . Both the client and server applications running over a valid Live URL are configured using the web socket connection option available within the API Tester Mobile App.
Here is the sequence of steps I followed to connect my WebSocket based chat app with the API Tester Mobile App:
+ icon displayed in the top right section of the app and select WebSocket option from the list of optionsws://192.168.18.4:3001 as can be seen in the below screenshotsConnect button to proceed with the WebSocket connection
You can send a request as a
text messageand receive a response from the server side as atext message.
As soon as the WebSocket connection is set up, real-time client and server communication in terms of requests and responses can be tested along with the TEXT origin, TEXT body, and Timestamp.
The experience of testing the backend of this one-to-one chat application using API Tester's WebSocket connection made me feel like using the chat application in real because of the smooth socket-based communication and user interactive interface of the API Tester mobile application.
The API tester mobile application also allows the user to switch between the Request and Response screens without disconnecting the WebSocket connection using the tabs displayed at the bottom of the screen.
The overall experience with API Tester mobile application is so good that one can easily overcome the worries of testing the API requests without having access to a desktop system and proper environment.
It has become so handy that one can test the WebSocket based backend applications and validate results using the WebSocket feature provided in the API Tester Mobile Application.
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