DevOps.com

  • Latest
    • Articles
    • Features
    • Most Read
    • News
    • News Releases
  • Topics
    • AI
    • Continuous Delivery
    • Continuous Testing
    • Cloud
    • Culture
    • DataOps
    • DevSecOps
    • Enterprise DevOps
    • Leadership Suite
    • DevOps Practice
    • ROELBOB
    • DevOps Toolbox
    • IT as Code
  • Videos/Podcasts
    • Techstrong.tv Podcast
    • Techstrong.tv Video Podcast
    • Techstrong.tv - Twitch
    • DevOps Unbound
  • Webinars
    • Upcoming
    • On-Demand Webinars
  • Library
  • Events
    • Upcoming Events
    • On-Demand Events
  • Sponsored Content
  • Related Sites
    • Techstrong Group
    • Container Journal
    • Security Boulevard
    • Techstrong Research
    • DevOps Chat
    • DevOps Dozen
    • DevOps TV
    • Techstrong TV
    • Techstrong.tv Podcast
    • Techstrong.tv Video Podcast
    • Techstrong.tv - Twitch
  • Media Kit
  • About
  • Sponsor
  • AI
  • Cloud
  • Continuous Delivery
  • Continuous Testing
  • DataOps
  • DevSecOps
  • DevOps Onramp
  • Platform Engineering
  • Low-Code/No-Code
  • IT as Code
  • More
    • Application Performance Management/Monitoring
    • Culture
    • Enterprise DevOps
    • ROELBOB

Home » Blogs » Top 6 Challenges of API Testing

Top 6 Challenges of API Testing

Avatar photoBy: contributor on May 23, 2017 Leave a Comment

Testing teams face several unique challenges when testing application programming interface (API) implementations. API testing is part of the integration testing process and concerns the communication between two systems—one of which your staff likely has no control over.

Recent Posts By contributor
  • How to Ensure DevOps Success in a Distributed Network Environment
  • Dissecting the Role of QA Engineers and Developers in Functional Testing
  • DevOps Primer: Using Vagrant with AWS
Avatar photo More from contributor
Related Posts
  • Top 6 Challenges of API Testing
  • Survey Sees More Complex API Challenges Ahead
  • Low-Code Makes API Testing More Accessible
    Related Categories
  • Blogs
  • Continuous Testing
  • DevOps in the Cloud
    Related Topics
  • API
  • API testing
  • application programming interface
  • continuous delivery
  • testing
Show more
Show less

Below you’ll find the following six common challenges when testing APIs and our recommended solutions.

TechStrong Con 2023Sponsorships Available

Initial Setup of API Testing

Manual testing helps confirm whether something works. Automated testing is necessary with APIs to gauge how well they perform under pressure. Getting the testing infrastructure up and running is often one of the most challenging parts of the process, not because it is particularly difficult, but because it can be a substantial motivation-killer. Once you manage to motivate your team to get through the process, however, it pays off over the long-term.

Solution: API testing should start in the design phase—how is the API going to be tested? Ensure interval checking of your APIs for 100 percent uptime.

Updating the Schema of API Testing

The schema—in other words, the data formatting that handles requests and responses for the API—needs to be maintained throughout the testing process. Any updates to the program that create additional parameters for the API calls need to be reflected in the schema configuration.

Solution: In today’s API economy, having an ever-changing API helps facilitate the demand. However, there can be downtime caused by those changes. One way to avoid that is to thoroughly test the API in beta and alpha environments. The chances of issues decrease to 90 percent when testing in these environments.

Testing Parameter Combinations

APIs handle communication between systems by assigning data values to parameters and passing those parameters through data requests. It’s necessary to test all possible parameter request combinations in the API to test for problems pertaining to specific configurations. A larger project could end up assigning two different values to the same parameter, or create instances where numerical values appear when text values should be. Adding an additional parameter exponentially increases the number of possible combinations.

Solution: We’ve learned from our customers that having release candidates are important. For example, picking one or two applications to utilize the API on and release it to just those applications. Pick applications that aren’t critical to daily operations. This way you’re able to see how the API is being utilized and if there are any configurational changes that need to be made to have a general availability (GA) release.

Sequencing the API Calls

In many cases, API calls need to appear in a specific order to work correctly. This creates a sequencing challenge for the testing team. For example, if a call to return a user’s profile information goes through before the profile is created, the request will return an error. Alternatively, a call to create a map needs to run prior to placing location pins on the map to work correctly. This process can get increasingly difficult when working with multiple-threaded applications.

Solution: This relates to the point above of having a release candidate to help in managing and seeing what the sequencing of the API calls are. We recommend making a flowchart to visualize the API calls. This will help developers build API calls and integrate them faster without causing issues.

Validating Parameters

Testing teams may find validating the parameters sent through API requests challenging as well. The sheer number of parameters and use cases for those parameters can make it a daunting task. The team needs to make sure all parameter data uses the correct string or numerical data type, fits within length restrictions, fits within a designated value range and passes other validation criteria. For example, U.S. phone numbers should appear in a 10-digit format, and returning a 5-digit zip code should trigger an invalidation error.

Solution: This can be avoided by having continuous synthetic API monitoring to catch the problem early on. Moreover, it should be combined with an APM solution to get an overall 360-degree view. Validating parameters is one of the most important things. It should show you how fast you’re serving those parameters. If making those calls has significant impacts on your system, implementing synthetic and APM solutions will ensure you catch the problem early on.

Tracking System Integration

The final challenge is making sure the API testing system is working correctly with the data tracking system. This is necessary to bring back correct responses on whether a call is working correctly. It’s also used to passively monitor API performance. Since this step can come late in the process, the team may be too fatigued to give it the attention it needs.

Solution: Think about your application in the design phase and how it will integrate with other systems. Different applications have different requirements that need to be met. Make sure you aren’t causing applications to fail by testing in parallel with critical integration systems. This can be accomplished by implementing and including load testing in your continuous delivery.

API testing is an essential part of application development in the modern business environment.

About the Author / Sven Hammar

Sven Hammar is co-founder and Chief Strategy Officer of Apica, a provider of technology for testing, monitoring, and optimizing the performance of cloud and mobile applications. Mr. Hammar has more than a decade of experience and expertise in web performance and web optimization, e-commerce, cloud services, IT entrepreneurship and the Internet. He is also a serial entrepreneur who has founded several successful IT companies over the years. Connect with him on LinkedIn.

Filed Under: Blogs, Continuous Testing, DevOps in the Cloud Tagged With: API, API testing, application programming interface, continuous delivery, testing

« How IT is More Like an ATV Than a Sedan
Feature Branching vs. Feature Flags: What’s the Right Tool for the Job? »

Techstrong TV – Live

Click full-screen to enable volume control
Watch latest episodes and shows

Upcoming Webinars

Evolution of Transactional Databases
Monday, January 30, 2023 - 3:00 pm EST
Moving Beyond SBOMs to Secure the Software Supply Chain
Tuesday, January 31, 2023 - 11:00 am EST
Achieving Complete Visibility in IT Operations, Analytics, and Security
Wednesday, February 1, 2023 - 11:00 am EST

Sponsored Content

The Google Cloud DevOps Awards: Apply Now!

January 10, 2023 | Brenna Washington

Codenotary Extends Dynamic SBOM Reach to Serverless Computing Platforms

December 9, 2022 | Mike Vizard

Why a Low-Code Platform Should Have Pro-Code Capabilities

March 24, 2021 | Andrew Manby

AWS Well-Architected Framework Elevates Agility

December 17, 2020 | JT Giri

Practical Approaches to Long-Term Cloud-Native Security

December 5, 2019 | Chris Tozzi

Latest from DevOps.com

Stream Big, Think Bigger: Analyze Streaming Data at Scale
January 27, 2023 | Julia Brouillette
What’s Ahead for the Future of Data Streaming?
January 27, 2023 | Danica Fine
The Strategic Product Backlog: Lead, Follow, Watch and Explore
January 26, 2023 | Chad Sands
Atlassian Extends Automation Framework’s Reach
January 26, 2023 | Mike Vizard
Software Supply Chain Security Debt is Increasing: Here’s How To Pay It Off
January 26, 2023 | Bill Doerrfeld

TSTV Podcast

On-Demand Webinars

DevOps.com Webinar ReplaysDevOps.com Webinar Replays

GET THE TOP STORIES OF THE WEEK

Most Read on DevOps.com

What DevOps Needs to Know About ChatGPT
January 24, 2023 | John Willis
Microsoft Outage Outrage: Was it BGP or DNS?
January 25, 2023 | Richi Jennings
Five Great DevOps Job Opportunities
January 23, 2023 | Mike Vizard
Optimizing Cloud Costs for DevOps With AI-Assisted Orchestra...
January 24, 2023 | Marc Hornbeek
A DevSecOps Process for Node.js Projects
January 23, 2023 | Gilad David Maayan
  • Home
  • About DevOps.com
  • Meet our Authors
  • Write for DevOps.com
  • Media Kit
  • Sponsor Info
  • Copyright
  • TOS
  • Privacy Policy

Powered by Techstrong Group, Inc.

© 2023 ·Techstrong Group, Inc.All rights reserved.