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API Testing

Sandhuya Sharma
5 min readAug 30, 2024

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API Testing: Ensuring Seamless Communication and Reliability

In today’s interconnected digital world, APIs (Application Programming Interfaces) serve as the backbone of communication between different software systems. Whether you’re interacting with a web service, integrating third-party tools, or developing a microservices architecture, APIs play a crucial role. To ensure these interactions are reliable, accurate, and secure, rigorous API testing is essential. This guide explores what API testing is, why it’s important, the types of API tests, tools you can use, and best practices.

What is API Testing?

API testing is a type of software testing that focuses on verifying that APIs function as expected. Unlike traditional testing, which often focuses on the user interface (UI), API testing checks the logic layer of the software architecture. This involves sending requests to various API endpoints and analyzing the responses to ensure they meet the expected criteria.

**Why is API Testing Important?**

1. Early Bug Detection: API testing can be performed early in the development cycle, even before the UI is ready. This allows developers to catch and fix bugs early, reducing the cost and complexity of addressing issues later in the development process.

2. Data Integrity and Security: APIs often handle sensitive data. Testing ensures that data is transmitted correctly and securely, safeguarding against data breaches, leaks, and corruption.

3. Ensuring Business Logic: APIs are where…

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Sandhuya Sharma
Sandhuya Sharma

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