API Testing

Identify bugs in the early stages of development with a shift-left approach. We help test aggregator services and ensure the output aligns with the expected results. With the assimilation of services from various providers, API testing helps assess business logic and translate them into digital signals sent over to validate business applications.

Why API Testing?

While two systems are connected via an API, testing the API’s connectivity, security, and functioning becomes imperative. It should comply with the performance, functionality, security, and dependability requirements. API testing is crucial to gauge that the API is working with resilience in case of expected or unexpected requests. It is also preferred since it is faster to surface bugs that can be identified and resolved quickly.

How does API testing work?

Before the API testing is started, it is mandatory to identify the API, its functionality, and what should be the expected outcome of the API testing. After the API specification has been settled, the next step is to assess testing requirements. Following API specification, positive and negative tests are conducted to determine the API’s operability under various workloads and circumstances.

API Testing implementation can be divided into three parts.

Types of API Testing Models

Ecosmob uses the following API testing types:

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    Validation Testing

    Determines the application’s suitability for acceptance requirements.

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    Reliability Testing

    API works consistently in the local test environment.

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    Performance Testing

    Checks stability, speed, and operability under a given workload.

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    Penetration Testing

    Evaluate the API’s security by simulating attacks from malicious users.

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    Functional Evaluation

    Checks the output with the desired outcome.

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    Load Testing

    Verifies the smooth working of applications under a given workload.

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    Security Testing

    Monitors an API’s authorization process and unravels security mechanism flaws.

Why Choose Ecosmob For API Testing?

Ecosmob’s advanced API Testing strategy offers transparent reporting and top-tier performance.

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    Maximize your return on investment

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    Adopt the suitable methodology and ensure time efficiency

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    Early detection of flaws lowers the cost of future correction

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    Save time with the help of our efficient QA team.


API testing is often carried out with the help of automated tools that submit requests to the API and evaluate the results. The exams frequently look for correct response speed, error codes, and data accuracy.

Both methods of testing have advantages and serve distinct functions. The testing project's specific needs, goals, and priorities determine the choice between API testing and UI testing. Combining API and UI testing is advantageous for achieving extensive test coverage in many circumstances.

API testing is highly effective because it analyzes an API's responsiveness to various requests. It tests reliability, performance, and security standards under any given circumstance.

Understanding the API's functionality, planning and writing compelling test cases, handling multiple data types, authentication, authorization, and simulating diverse use cases are all significant challenges in API testing.