Ensuring Quality and Reliability for Marketplace API

Strategic QA for a complex marketplace API system handling real-time data updates.

About project

Solution

Functional testing, API testing, Billing and User Flow testing, UI/UX testing

Technologies

Postman, Chrome Dev Tools

Country

United States

Industry

Finance & Banking

Project Duration

1 year

Team Composition

4 Manual QA Engineers

1 Part-time Team Lead

Challenge

The client’s Marketplace API presented a multifaceted challenge due to its complex structure and dynamic nature.

 The system comprised numerous endpoints and real-time data updates, requiring a comprehensive understanding and efficient testing strategy within a tight timeframe.

Key challenges included:

  • Ensuring accurate real-time data updates on the client side
  • Verifying the functionality of intricate billing plans, including activation, special conditions, payments, and deactivation
  • Testing new features and pop-ups for premium accounts just before release

The project demanded a meticulous approach to maintain the API’s reliability while accommodating its growing complexity and feature set.

Solutions

Dedicated team. We formed a specialized team of five professionals, including four manual QA engineers and a part-time Team Lead, all with extensive experience in API testing and dynamic data environments.

A comprehensive testing strategy focused on: 

  • Functional testing to verify correct data display across client sites
  • API testing to check the availability and functionality of each endpoint
  • Billing and user flow testing using test accounts
  • UI/UX testing focused on new features and premium account pop-ups

Collaboration with developers. We worked closely with the development team, reviewing requirements, scrutinizing test cases, and identifying defects.

Technologies

We used specialized tools for API testing and performance monitoring to ensure system reliability:

  • Postman for API testing and validation
  • Chrome Dev Tools for frontend debugging
  • Test environment management tools
  • Bug tracking and reporting systems

Types of testing

Functional testing

Validated data display and functionality across platforms.

API testing

Ensured endpoint availability and data consistency.

Billing/User Flow testing

Verified diverse user and billing scenarios.

UI/UX testing

Ensured user-friendly interfaces for premium accounts.

Results

Our testing efforts significantly improved the platform’s reliability and user experience. The team successfully:

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500

Processed over 500 test cases

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Identified and resolved critical API bugs

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Validated all endpoint functionalities

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Verified billing plan operations

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Ensured smooth premium feature implementation

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Improved real-time data synchronization

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    Bruce Mason

    Delivery Director

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