Lessons from The Journey of a Test Engineer

On This Page My Journey as a Test EngineerSignificance of APIsMarch 24, 2026 · 7 min read · Testing Guide

Lessons from The Journey of a Test Engineer

In software development, APIs receive turn the backbone of mod application. APIs, or Application Programming Interfaces, enable communication between different software systems and service, allowing them to exchange data and perform actions seamlessly. API testing, so, has become a critical panorama of software testing, ensuring the quality and reliability of APIs. As a beginner, API Testing often looks like a straightforward activity to many. However, it has its share of pitfalls, traps, and nuances one ask to take forethought of. In this article, I will portion some of my experiences as an API tester and the lessons I see in this journey.

My Journey as a Test Engineer

I vividly return my first day on a new assignment for a financial services company, where I discovered that I would too be testing APIs. The project involved germinate a modern digital coating allowing client to manage their fiscal information and details. The coating rely heavily on APIs to convey with various backend systems.

Coming from a task direction and operations background, quiz itself was a new concept for me. The term & # 8220; API testing & # 8221; was like an extra construction, and I had no idea what it would entail. I substantiate that testing APIs would need upskilling in testing skills and techniques.

Significance of APIs

Over the terminal decade, APIs receive entirely revolutionized software development, permit developers to focus on create new features sooner than building everything from scratch. APIs provide a interchangeable interface for communication between different systems, allowing coating to be acquire quickly and expeditiously. By enabling integration between different service, APIs make it possible to create new applications that leverage the functionality of subsist system.

Today, APIs function as a backbone for almost every modern app germinate. Having understood the covering of APIs in the package world, let & # 8217; s know why API testing is equally important for building any lineament ware or application.

Importance of API Testing

API testing is critical for ensuring the reliability and functionality of package scheme. It ensures that APIs execute as expected, handling errors gracefully and returning accurate results. API testing is also all-important for efficient and scalable software testing. Targeting your examination at the API layer can enable you to start prove former and provide speedy feedback when integrated with CI systems.

Challenges In The Testing Journey.

At the beginning of my function as an API Tester, I felt overwhelmed and restrain by all the new API-related terminology. I spent hours scouring the net, especially YouTube, for tutorial and class to learn everything I could about API essay. While this gave me a quick head start for API Testing, when I look back, I realize that most of the material that I was consuming was only focused on the functionality of the APIs or how to put basic assertions for validation. I missed the bigger picture of the API Testing game. Back then, I did not agnise that this small misapprehension would affect my testing career for years to get.

While testing APIs, one of the challenges I faced was understanding the underlying information structures and how they be being send to and from the upstream and downstream systems. APIs use various data formats, such as JSON and XML; understanding how to read and interpret these formats was crucial to testing effectively.

Another challenge was dealing with the sheer volume of data being returned by the APIs. Some of the endpoints be returning large amounts of complex and nuzzle data elements, making it difficult to analyze the JSON payloads or create JSON Paths for automation.

However, the major challenge that I was continuously face was that despite make a huge battery of tests in the automation suite, we be still getting frequent customer subject in product. The root effort of these issues spanned respective reasons, such as bad UX, serviceability glitches, mistake handling, documentation issues, and incorrect business or domain mapping.

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Overcoming Challenges

Failing to look beyond the functional prospect of APIs was my big trap in the initial phase of my calling. I was forever caught up in impart tab for APIs and overlook the big impression. However, my screen approach towards API alter drastically after I attended # TestFlix2020 by The Test Tribe. That was the first time I saw many atomic videos on essentials to regard testing factors such as security, performance, UX, Usability, etc. The impact of that conference on me was huge on many levels.
Post-conference, I took a proactive access to acquire new science and techniques. I study various try skills and how to use them to cover various commonly sought API quality criteria. A few of the resources that helped me immensely were:

With clip, I have also learned to use tool beyond test automation execution to make my testing far more efficient, holistic, and systematic. Some of the resources that I now use are:

1. Test Data Tools:

2. Checklists:

3. JSON Validator & amp; Formatter Tools:

Additionally, to best understand the client & # 8217; s pain point, I took the following activeness:

  • Initiated conversations with the sales and merchandising team.
  • Requested to be included in support and production e-mail related to our API issues.

Overall, It was a journey of upskilling myself and expand my horizons.

Impacts of Upskilling

By going through this journeying of uninterrupted upskilling, implementation, and improvement, I now see a significant impact on my project & # 8217; s overall examination procedure and approach. Some of those are:

  1. Bug Prevention over Bug Fix:The use of various global as well as project-specific checklists help to ensure that we are not repeating the same misapprehension repeatedly. A lot of the silent cognition is converted to explicit cognition with the help of checklists and chess sheet. This helps to prevent bugs in the long run.
  2. Effective Testing Process:By leverage existing knowledge about testing processes in similar circumstance, we could tune and flux our testing with what was miss. This needs a lot of experimentation and reexamination. However, the end result is an effective testing process.
  3. Improved Efficiency:By learning to use test tools for each and every activity connect with essay and not just restricting ourselves to automate check execution, we take a lot of efficiency to our testing process. Sometimes, we ignore how much these modest tasks guide up from us. However, when you add these all, you will find a lot of time salvage for you to really focus on more testing.
  4. Improved Customer Alignment:By connecting oftentimes with the sales and selling teams, we could better align with our client & # 8217; needs. This helped us to test for critical scenarios that mattered.
  5. Good Post-Delivery Feedback:At the end of the day, we all want slaked customers and few complaints.

Key Takeaways

  • APIs are critical in modern package development by enabling desegregation between different systems and services.
  • Testing APIs is critical to see a software system & # 8217; s reliability, saleability, and functionality.
  • Testing APIs requires additional skills and creature equate to testing GUIs.
  • Successful API testing requires a deep understanding of the underlying systems and data structures used by the APIs.
  • Leveraging custom scripts and puppet beyond automatize performance can transform the testing process and improve efficiency.
  • Collaboration between the engineering team and stakeholders is important for successful API testing.
  • Effective API examination can improve the customer experience, cut development clip and costs, and lead to overall projection success.

Conclusion

This clause is different from the usual articles that I publish. It was from my own experience and development journey. I hope that by sharing my experiences and insights, other testers can profit and improve their API testing skills. If you are facing similar issues with your API Testing and would care to discuss them on a blanket stage, feel free to gain out to me on my social handles.

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