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API Testing Services

We will introduce you to the main processes of API testing and tell you how to use software API testing in your company to improve the development process and guarantee the quality of the product.

What is API?

An application programming interface is a list of protocols, rules, and definitions developers use to create and integrate application software into existing systems and platforms. An API is a boundary between objects that interact. Developers use the interface by sending a request and receiving a response. We offer high-quality API testing services to ensure the reliability and security of your software. Our professional testers are skilled in API testing. We are ready to build a software API testing system on your project to ensure your application is reliable and stable.

What is API testing?

API testing is a process in which test requests are sent to a server, and the system responses are analyzed.

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API testing to smooth the development workflow

API testing allows us to test new features from the backend developers even before the UI is ready. Thus, API testing helps to identify and correct errors on the backend without the need to correct the consequences of these errors on the front end.
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API testing services based on testing types

We can offer a review of different types of API software testing to help you get more information and better understand how to test API effectively.
API Performance Testing
API performance testing, a core aspect of our API testing service, assesses the performance and consistency of an API under normal and high-load conditions, measuring its stability and speed through simulations. We use tools like Gatling, Jmeter, and K6 for this type of testing.
API Security Testing
Testers use API security testing methods to prevent potential attacks and malicious actions. QA performs unauthorized access to the server to ensure the protection of user information. For automation API testing, testers use tools such as Burp Suite, Acunetix, and Restler-Fuzzer.
API Integration Testing
API integration testing studies the relationship between different system modules. Productivity and the provision of quality services directly depend on effective integration. We use such tools as Postman, Runscope, Checkly, Karate, and others to implement these tasks.
API Automation Testing
In automated API testing, we use test scripts to check the reliability and high functionality of the API application in the project. This type helps to significantly speed up the search for errors and improve the quality of the final product. Popular automated API testing tools include Postman, SoapUI, and Rest-Assured.
API Manual Testing
Manual API testing is a process in which requests are sent manually by QA engineers, not scripts. Skilled testers write queries, integrate and test the API, and make necessary changes to address flaws.

Achieve Software Reliability & Security With API Testing

  • Usually, to check data accuracy, schema, data type, order, completeness, HTTP status codes, and error codes should be verified.
  • This helps to identify and correct possible errors before operating the product.
  • API software testing also aids in ensuring software security, allowing you to identify and fix potential errors while exchanging data between different system component
  • This may include input validation, SQL injection protection, access rights checking, API security techniques, etc.
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Our Approach

We perform API testing services on different devices, operating systems, and browsers. If any errors do happen, that might cause the program hacking. APIs are often complex, with many different parameters, endpoints, and possible responses that require special skills for testing. Luxe Quality helps companies build high-quality products by ensuring integrated APIs meet application functionality, reliability, performance, and security standards.

API testing benefits

The benefits of API testing include identifying and rectifying interface errors that can adversely impact user experience and interactions with applications and services. Therefore, the following main advantages of using the software testing API should be listed.
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Strong Protection
It is vital to provide accurate data transfer in the appropriate format when interacting with external services through API. API testing ensures uninterrupted data communication, detects errors and enhances data security.
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Core Access
A convenient and exciting feature for API developers and testers is that API software testing allows access to the application without a user interface. That is, a permit is obtained from the kernel. This helps to save time as testing can be done simultaneously with development.
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Time & Сost Effective
API testing saves developers time since testing can be started before the UI is implemented. It not only speeds up development workflows but also allows you to avoid future errors, significantly reducing development costs.

API Testing Tools

In our work, we use a comprehensive set of tools for API testing because each provides a range of capabilities necessary for testers.
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API Automation testing frameworks

Frameworks are used during many development and testing stages because they significantly speed up and help the developer or tester. When it comes to automation API testing, there are numerous frameworks available, such as: Supertest, Testcafe, Pact, Playwright, Rest-assured, Karate, and Cypress, among others. Leveraging these frameworks ensures more reliable and efficient API testing outcomes.
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Client’s feedback

Frequently Asked Questions

When should you implement API Test Automation?

Automated testing should be used for powerful APIs that are too complex for manual testing.

What problems arise when Automated API Testing?

Any automated testing is sensitive to hardware (RAM, CPU), test architecture, environment settings, etc. At the same time, the choice of QA engineers for API testing should be approached very seriously because the low qualification of specialists will sufficiently reduce the testing of API efficiency.

What are the standard metrics when Testing API?

Automated API testing is usually better than manual testing because it allows faster and more efficient functionality testing and reduces the risk of human error. It also requires fewer resources, as it takes much less time to perform, but it demands high-skilled specialists.

Best tools for Testing API?

The choice depends on your requirements and goals. Each case should be considered individually. We use the following tools: Postman, SoapUI, Rest-Assured, Runscope, Checkly, Karate, etc.

What are the challenges in API testing?

Challenges can range from parameter validation, response handling, and managing endpoints to simulating different conditions and handling unexpected results. Moreover, when transitioning to automation API testing, it's crucial to ensure that tests are not only fast but also accurate, adding another layer of complexity to the process.

Want to know more?

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    +1 (224) 477-9959
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    USA, Virginia
    1800 Chain Bridge Road, McLean, VA 22102
    Spain, Alicante
    27, C. Rafal, Torrevieja
    Ukraine, Lviv
    7a, Naukova Street

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