Path parameters should not include periods

[kitgrose]

I have a web service I'm trying to connect to that provides its response based on the extension passed in via the URL (e.g. .xml or .json), rather than the Accept HTTP header.

When passing path parameters in the URL, the path looks like /get_item/:item_id.xml, but Insomnia treats item_id.xml as the name of the parameter.

Ideally this would just work, with the . functioning like a / in ending the path parameter token name, but failing that it would be nice if there was some optional way to forcibly indicate the end of a parameter name (e.g. /get_item/:{item_id}.xml or similar), to allow these kinds of URLs to be modelled with path parameters.

In the meantime my workaround has been to use an unchecked query parameter, then set the URL in Insomnia to /get_item/{% request 'parameter', 'item_id', 0 %}.xml, but unchecked parameters feel much less appropriate than path parameters for this purpose.