QAPI
  • Introduction to Qyrus
  • User Onboarding
  • API Onboarding
  • Build and Test Management
  • Environments and Certificates
  • Test Execution
    • Performance run
    • Schedule Runs
    • Functional run
    • Reports
  • Guides
    • 🚩CORS, CSP and Preview API
    • Introduction to API Testing
    • Getting Started with API Testing
    • Key Screens
    • Guide to JSON in API Testing
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  • What is an API?
  • Why API Testing?
  • Differences between UI and API Testing
  • API Testing Workflow

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  1. Guides

Introduction to API Testing

What is an API?

API stands for Application Programming Interface. It is a set of rules and protocols that defines how different software components should interact with each other. APIs act as intermediaries, enabling communication and data exchange between different applications or systems.

Why API Testing?

APIs are the backbone of modern software applications, facilitating integration and data exchange between various components. Testing APIs is crucial to ensure that the underlying functionality works as expected and that data is being transmitted and processed correctly.

Differences between UI and API Testing

In UI (User Interface) testing, you interact with the application's graphical user interface to validate its behavior from the end-user's perspective. API testing, on the otherhand, focuses on testing the application's underlying logic and data flow directly, without the need for a user interface.

API testing offers several advantages:

  1. Early Testing: APIs can be tested even before the UI is developed, allowing for earlier detection of issues.

  2. Increased Test Coverage: APIs expose more functionality than what is available through the UI, enabling more comprehensive testing.

  3. Improved Reliability: By testing APIs directly, you can isolate and identify issues more precisely, leading to more reliable applications.

  4. Faster Test Execution: API tests are generally faster and more efficient than UI tests, enabling quicker feedback cycles.

API Testing Workflow

The typical API testing workflow involves the following steps:

  1. API Understanding: Familiarize yourself with the API documentation, endpoints, request/response formats, and authentication mechanisms.

  2. Test Planning: Identify the test scenarios, prioritize test cases, and determine the appropriate test data.

  3. Test Execution: Send requests to the API endpoints and validate the responses against the expected behavior.

  4. Reporting and Analysis: Analyze the test results, identify issues, and report defects or generate test reports.

PreviousCORS, CSP and Preview APINextGetting Started with API Testing

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