Resolve a dot-notation path (e.g. $.userPool.Id) against a source object.
$.userPool.Id
The object to resolve against.
Dot-notation path starting with $ (e.g. $.userPool.Id).
$
The env var name this mapping is for (used in error messages).
The resolved value as a string.
If the path resolves to undefined or null.
undefined
null
Resolve a dot-notation path (e.g.
$.userPool.Id) against a source object.