Why API Testing is required?

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Application Programming Interface, or API, is an interface that facilitates communication between two software systems. It is possible to link certain functionality or business operations with front-end code to abstract the written business logic and programming complexity, and this is known as a function. The separation of business logic from other application resources and cross-platform compatibility would both be greatly aided by API.

 

Examining API

To significantly limit the amount of flaws that might be discovered during functional testing of the program, we need to test the application's fundamental business logic.

 

The purpose of API testing is to validate the API's functioning and make sure it satisfies the functional requirements. Since APIs are used to communicate between various software systems, integration testing depends on it. API testing assists in finding problems early in the development process and helps avoid expensive bugs and mistakes in production.

 

Why are APIs crucial?

As was already noted, the API might be thought of as the application's engine, and as such, it should operate without any glitches or problems. We must perform testing operations on the set of APIs in order to accomplish this. In addition to this fundamental justification, the following additional justifications may also be useful in understanding the significance of API testing:

 

1. To reduce the likelihood that a fault may be discovered later.

Before coupling with UI components for the application, testing activities are carried out during the API testing phase. Therefore, we may already detect any flaw in the application's basic coding at this extremely early stage. When confirming that the API is operating correctly and error-free while accepting a decent set of inputs, we are also making sure that the same amount of data won't cause any issues when combined with the application user interface (UI), making any issues reasonably simple to fix during the API testing phase.

 

2. Potential for API testing automation

We may build an API testing automation suite using the many toolkits and libraries that are available to automate API requests. In the CI/CD era, that suite may be hooked while creating deployments or integrations, saving the laborious effort to test the functionality of the entire set of APIs underpinning the application.

 

3. Quality assurance using a single testing iteration across many platforms

When the same program is made available for several platforms like mobile, desktop, etc., the same set of APIs is used. Therefore, when we test an API collection, we also make sure that the business logic will execute consistently across the various platforms.

 

4. A reduction in testing costs overall

As a general rule, whenever we are able to identify a flaw early on, we are able to save both money and time. API testing allows us to identify bugs and defects at very early stages.





5. API testing is also time-effective.

When comparing the same set of test scenarios, API testing is quicker than functional testing because we only need to modify the parameters for each call, as opposed to functional testing, which requires us to fill out entire UI forms.

 

6. Fears about safety

By using a precise set of settings to mimic potential phishing attack techniques, API testing allows us to investigate security flaws as well. In the event of such attacks, we may examine how the API will react.

 

7. A performance evaluation

The API serves as a link to retrieve data from a data table after some complicated processing. It is best to wait until the specified API responds before checking the performance of the entire program. The optimizations must be done if it doesn't fit the criteria.



8. Quickness

API tests are quick and make it easier to validate the application's business logic, security, compliance, performance, and other elements.

 

Conclusion: After taking into account the aforementioned factors, it can be said that API testing saves time because it enables us to design high-quality business logic without the need to complete lengthy forms at the UI level and test application behavior. Additionally, automated API testing is a straightforward activity that greatly raises the application's quality. As a result, it is essential to test APIs alongside application testing and to incorporate them into the chosen test method.

 

Beginners can get a strong foundation in both manual and automation testing methodologies by taking this course, which covers the principles of manual testing. Testing professionals can effectively contribute to the overall quality assurance process by learning manual and automation testing concepts. So, think about exploring the world of manual testing whether you're a testing novice or looking to expand your testing skills. It is an essential component of software testing that must not be disregarded.





API testing has the most importance in the field of software testing. Check out BDD cucumber framework with selenium to start a career. Our programme offers hands-on experience through real-time projects.





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