What are some examples of API validation?
API validation ensures that the data sent to an API meets certain criteria. Examples include checking data types, required fields, and value ranges.
Can you give me a specific example of validating a JSON payload?
Sure! For instance, if you're expecting a JSON object with a 'name' field that must be a string and an 'age' field that must be an integer, you would validate that both fields exist and that 'age' is within a certain range.
What tools can I use for API validation?
You can use tools like Postman for manual testing, or libraries like Joi and Yup in JavaScript for automated validation.
How do I handle validation errors in my API?
You should return a clear error message with a relevant HTTP status code, like 400 Bad Request, along with details about what went wrong.
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