Three important API Validation types

⭐️- Status Code Validation
⭐️- Response Body Validation
⭐️- Schema Validation

🚀 API Test Validation

API testing is crucial to ensure that your application’s backend functions correctly and communicates with external systems as expected. When testing an API, there are three essential elements that you need to pay attention to:

🔥 Status Code Validation

The status code is a three-digit number that indicates the result of the API call. For example, a 200 status code means that the request was successful, while a 404 status code means that the requested resource was not found. Checking the status code is the first step in API testing, as it confirms whether the API endpoint is accessible and whether the server is processing requests correctly.

🔥 Response Body Validation

The response body is the data that the API returns after processing the request. It can be in various formats, such as JSON, XML, or plain text. When testing an API, you need to verify that the response body contains the expected data and that it follows the API’s specifications. For instance, if the API returns user data, you need to ensure that the response body contains all the required fields and that they have the correct data types.

🔥 Schema Validation

Schema validation is a technique that verifies whether the response body follows a predefined structure, called a schema. A schema is a blueprint that defines the expected format and structure of the response body. Schema validation ensures that the API response follows the specifications and helps detect errors early in the testing process.

🚀 Conclusion

In summary, when testing an API, you should check the status code, verify the response body content and format, and validate the schema to ensure that the API works as expected. By doing so, you can catch bugs and issues early in the development process and deliver high-quality, reliable software.