proposal-system/api/src/ProposalSystem.Application/Validators/CreateCustomerValidator.cs

using FluentValidation;
using ProposalSystem.Application.DTOs;

namespace ProposalSystem.Application.Validators;

public class CreateCustomerValidator : AbstractValidator<CreateCustomerRequest>
{
    public CreateCustomerValidator()
    {
        RuleFor(x => x.Name)
            .NotEmpty().WithMessage("Customer name is required")
            .MaximumLength(200);
    }
}