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API Testing

What is API Testing?

API Testing is a type of software testing where functionality, performance, reliability, and security of the application programming interface (API) are checked. API testing intends to reveal bugs, discrepancies, or divergence from the expected behavior.

Components of a software application interact with each other, with a set of procedures and functions known as API. APIs check the features and data of an application, operating system, applications, and other services. An API is a tool to communicate or retrieve data from a particular application.

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Best Practices

Here are some of the best practices which we would recommend to follow after you are well versed with how to do API testing:



Through a series of API load tests, add stress to the system.



Call sequencing should be performed in a well-planned manner.



By keeping the tests isolated, you can limit them from variables.



Expected or typical results need to be tested first .



Categorize the test cases by the test category.



Understand how the API fails by testing them for failures.



For the testers to test the APIs quickly, prioritize the API function calls.



Whenever possible, try automating the testing process..



Create test cases for all possible API input combinations, for complete test coverage.

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Why choose us for API Testing Service?

Our API testing services ensure that you not only save functional testing time but also reduce manual testing costs. We use the optimum API testing tools, along with advanced technology to deliver you highly efficient API testing services.

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 Best API Testing

In API testing, rather than using standard user inputs and outputs, the software is used to send calls to the interface, to get output and note down the system’s response. It is done to determine whether the output received from the application is well structured, correct, and useful for another application. API tests focus on the business logic layer of the software architecture rather than the look and feel of the application.

How Our Process Works?

At Teknotrait, our testing experts perform API testing using the best optimum testing tool that drives the API. We use the optimum specific dedicated tools for testing purposes, to provide you with out of the box solutions. To achieve this we follow a step by step process which consists of the following steps:

  • Creating API testing requirements
  • Establishing the API test environment
  • Making a trial API call
  • Defining input parameters
  • Creating API test cases

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Be assured as our API services will mark your expectations about functionality, reliability, performance, and security of the application. With the utmost test accuracy, integration of GUI tests will take place easily.

How does Teknotriat help you?

At Teknotrait, we offer an expansive range of top-notch API Testing services assuring high robust applications for your business. Our highly experienced and well-trained professionals ensure that your application is met with all the needs of the targeted audience, with our industry-standard API testing.

Our extensive range of API testing services include:

  • Functionality testing
  • Load testing
  • Reliability testing
  • Security testing
  • Automated API testing
  • Unit testing
  • Penetration testing and many more...

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Features & Benefits of API Testing

To work correctly, API calls need to arrive in a specific sequence. While working with multiple threaded applications, this might be a challenge for the testing team.
Communication between systems handled by APIs is by assigning data values to the parameters. These parameters are then passed through data requests. Problems related to specific configurations must be tested in the API for all parameter request combinations.
Though authenticating the parameters which are sent through API requests can be quite challenging, it is necessary to ensure that the parameter data passes all the validation criteria.
As there is no GUI to provide input values, testers need to be knowledgeable about the request and response parameters. This also includes exception handling functions and error codes.
In web API, the server-side is referred to as Web Service. Though there are various models for these web services, the two broad classes are soap and rest.
API testing administers access to the application without any user interface, helping testers to detect and rectify the errors at an early stage. Early evaluation of the applications overall build strength, tests the core, code-level functionality of the application before running GUI tests.
 API testing helps in eliminating vulnerabilities by pushing software to their connective limits. As API tests need exceptional conditions and inputs, the application is protected from detrimental code and breakage.
 API testing consumes less time than functional GUI testing. As API tests require less code, it provides faster and better test coverage than the automated GUI tests.
As mentioned above, API testing provides us faster test coverage, which in turn helps in providing reduced overall testing costs. Before running GUI tests, an early evaluation of the application’s overall build strength is determined by testing its API level functionality. The early deduction of these errors decreases manual testing costs. 
Data interchanged in API tests is using JSON or XML. Beijing technology-independent, these are used for development by the development team. Hence while using automate API testing services for application, API tests permit you to select any core language.
With API testing, easy integration with GUI is possible. This would be highly beneficial when there is a plan to perform GUI tests following the API testing.