How to validate EC2::InstanceType?

[jkmartin19]

Hello,

I need to validate that a string is a valid EC2 instance type. I was hoping code like this would work:

type = Aws::EC2::Model::InstanceTypeMapper::GetInstanceTypeForName(some_string);
if (type == Aws::EC2::Model::InstanceType::NOT_SET) {
    // handle invalid instance type
} else {
   // assume valid instance type
}

The issue is that the above code will return a seemingly valid InstanceType because GetInstanceTypeForName() uses the EnumParseOverflowContainer, so it will return an InstanceType that is something other than NOT_SET.

I'm wondering what the correct way to validate that a string input is a valid InstanceType. Any pointers would be very appreciated.

[jkmartin19]

Is there anyone who knows how to validate that a string is a valid instance type? I'm hoping I don't have to write something myself.

[jmklix]

You can use DescribeInstanceTypeRequest/Response and compare that to your string to see if that is a valid instance. You can look here for examples of how to use that in other languages (sorry we don't currently have an example in c++)