Fluent validation for httpget request webapi core 3.0

Question

 public async Task<ActionResult> GetCustomerById(int id)
        {
               var data = await _customerService.GetCustomerById(id);
                return Ok(data);
        }

how can we implement fluent validation for request parameter - id?

Answer 1

You can use it like this :

RuleFor(id => id).LessThan(100).GreaterThan(0);

You don't need FluentValidtion to validate the request, It's an Attribute Routing. It helps you to not process invalid request.

[HttpGet("GetCustomerById/{id:int:min(1)}")]
public async Task<ActionResult> GetCustomerById(int id)
{
}