How we can perform field/object validations (for correct data type) to check the proper error code and alert messages

Hi, I am new to API testing. Apart from CRUD operations, how we can perform field validations to check the proper error code and alert messages. Example, in case we have an object with integer data type and we are entering string or special characters using Data Driven Testing, so to verify the alert message and correct status code. How we have to proceed. Thanks

Hello @inderpal79, Welcome to the community :tada:

I would suggest going through the Postman’s learning center for writing test and examples for test. Here, you can find different examples for different use-cases.

Cheers :smiley: