Hi Mark,
Currently, we don’t support partial substitution in the path variable. It would be good to have the path param /{pathparam} so that resource looks like /sample/v1/resource/{pathparam} and do the URL encoding of path param before invoking the request.
Sample request /sample/v1/resource/path%28%27value1%27%29
Sample request /sample/v1/resource/path%28%27value2%27%29
Thanks & Regards
Lakshmanan N
#webMethods#API-Management#API-Gateway