in src/app/ContosoTraders.Api.Core/Requests/Validators/GetCartRequestValidator.cs [5:17]
public GetCartRequestValidator()
{
RuleFor(request => request)
.NotNull();
RuleFor(request => request.Email)
.NotEmpty()
.WithMessage("Email cannot be null/empty.");
RuleFor(request => request.Email)
.EmailAddress()
.WithMessage("Incorrect format for Email.");
}