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Top Five Challenges in API Testing and How to Solve Them


API software testing involves testing application program interfaces directly and as part of integration testing. The primary purpose of API testing is to determine whether APIs meet expectations with regard to reliability, security, performance, and functionality. Testing should be performed on APIs that developers are producing as well as ones that developers are consuming within their applications.

API testing comes with many challenges. But with the right know-how, those challenges can be solved. Here are five challenges that are commonly experienced and the methods you can use to fix them.

Finding the Right API Testing Tools

Performing API testing brings a number of challenges. But you can test APIs much more efficiently by using the right testing tools. There are hundreds of API testing tools on the market, so it is important you compare different ones to find the right testing tool for your needs. One of the best is RapidAPI Testing. It provides a functional testing solution for creating and managing thorough API tests, right through from the development stage to the deployment stage. With RapidAPI Testing, you can run tests for any API type, such as those that use SOAP, REST, or GraphQL. For comprehensive testing, global monitoring, and seamless integration, you cannot go wrong with the RapidAPI Testing tool. Other excellent API testing tools on the market include:

  •   SoapUI.
  •   REST-assured.
  •   Paw.
  •   Postman.
  •   Katalon Studio.

Getting the Testing Setup Right

The testing of APIs, which is done at the message layer, is crucial for automating tests because APIs act as the primary interface to application logic. The transactions include multiple types of endpoints, such as RESTful, Web Services, ESBs, mainframes, and databases. One of the first challenges in API testing is the setup. You can use manual testing to confirm whether something functions correctly, but you will need to use automated testing to gauge how well APIs perform under pressure. It can be challenging to get the testing infrastructure up and running. But you can avoid problems by determining how you want APIs to look during the design phase and ensuring the APIs have full and continual uptime.

Sequencing API Calls

Often, API calls must appear in a specific order for them to work correctly. That brings a sequencing challenge. For instance, if a call to return user profile information goes through before a profile has been created, you will receive an error message from the request. And the more APIs you need to test, the more complex the process becomes. To get to grips with sequencing API calls, it helps to create a flowchart so that API calls can be easily visualized. Developers can then build and integrate API calls faster and hassle-free.

Avoiding API Downtime Challenges

It is essential you update the API schema because ever-changing APIs help to facilitate demand. But you need to remember to update the data formatting that deals with requests and responses whenever you update an API. To avoid downtime of APIs during the testing phase, thoroughly test your API in alpha and beta environments. When testing in both those environments, the chances of experiencing problems decreases to 90%.

Data Tracking System Integration

When testing APIs, it is important you ensure the testing system is functioning correctly with the data tracking system. That is vital for bringing back correct responses to determine whether a call is working properly or not. It is also essential for passively monitoring API performance. To avoid tracking system integration challenges, consider how an application will integrate during the design phase, and ensure you do not cause applications to fail by testing in parallel with crucial integration systems. To accomplish that, implement and include load testing in your continual delivery.