Identify invalid Azure container names

Question

How can I programmatically determine if a container name is invalid for rules?

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A valid name for the container in the firewall repository.

• 3 to 63 characters
• starts with a letter or number
• Letters, numbers and dashes (-)
• Each dash (-) must be immediately preceded by a letter or number.
• All letters in the container name must be lowercase.

Answer 1

A valid name for the container in the firewall repository.

• 3 to 63 characters
• starts with a letter or number
• Letters, numbers and dashes (-)
• Each dash (-) must be immediately preceded by a letter or number.
• All letters in the container name must be lowercase.

In my WebAPI, I used the following:

if (container.Length < 3 || container.Length > 63 || !Regex.IsMatch(container, @"^[a-z0-9]+(-[a-z0-9]+)*$")) throw new HttpResponseException(Request.CreateResponse( HttpStatusCode.BadRequest, "Invalid Request!"));