'Is there a slot type for Amazon Lex that accepts dots?

I'm trying to create a slot type for users to enter input similiar to a URL, with multiple dots (in my case, more than a URL). Is this possible? At the moment I'm using alphanumeric but it seems to be bugging out as it doesn't accept "."

Solution 1:^[1]

Amazon Lex provides the ability to use custom Lambda functions to extend the range of capabilities that you can add to a Lex bot. You can create a custom Lambda function to validate the input data according to your needs.

Take a look at the Lex programming model here

This video tutorial will help as well.

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'Is there a slot type for Amazon Lex that accepts dots?

Solution 1:[1]

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Solution 1:^[1]