API Testing Tools
In this tutorial, we will learn about popular API Testing Tools. API stands for Application Programming Interface. API testing is a type of software testing that checks the quality attributes of APIs, such as functionality, performance, security, and other attributes. API allows communication and the exchange of data from one system to another.
API Testing tool
An API testing tool is software that aids in planning, developing, and executing the API(Application Programming Interface) or web service testing process to detect, track, and report errors. APIs can be SOAP-based or RESTful web services.
Popular Tools
Some popular API Testing Tools are as follows:
- Postman
- Swagger
- Katalon Platform
- REST Assured
- Insomnia
Postman
Postman is a popular API testing tool that simplifies the process of developing APIs that allow different software to communicate with each other. Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration to create better APIs faster.
Postman testing tool allows you to create, manage, and automate API tests. It provides a user-friendly interface for sending requests, organizing them into collections, and running automated tests.
Swagger
Swagger is a set of tools to design, build, document, and consume RESTful APIs. It includes a framework for API development and tools for API documentation. The Swagger toolset is now part of the OpenAPI Initiative, an open-source project that aims to standardize and simplify the description of RESTful APIs. Swagger tools consist of:
- Swagger Editor
- Swagger Hub
- Swagger UI
- Swagger CodeGen
Katalon Platform
Katalon Platform offers tools like Katalon Studio, Runtime Engine, Test Cloud, and AI Augmentation to power pack API testing. Katalon Studio is an IDE with features like auto-completion, auto-formatting, and code inspection. It provides pre-built and customizable code templates. The tool supports different testing approaches, such as Test-Driven Development (TDD), Behavior-Driven Development (BDD) testing, Keyword-driven testing, Page-Object Model (POM) testing, and Data-driven testing. The tool also supports CI/CD integration.
REST Assured
REST Assured is a Java library that tests RESTful APIs. It integrates with popular testing frameworks like JUnit and allows you to write tests using a fluent API.
Insomnia
Insomnia is a free, open-source API testing tool with a clean user interface and various features for designing and testing APIs.