- Property Manager name: Variable Substring Transformation
- Behavior version: The
v2023-01-05rule format supports the
- Rule format status: GA, stable
- Access: Read-write
- Allowed in includes: No (temporarily)
The Internet of Things: Edge Connect product allows connected users and devices to communicate on a publish-subscribe basis within reserved namespaces. In conjunction with
dcpAuthVariableExtractor, this behavior affects how clients can authenticate themselves to edge servers, and which groups within namespaces are authorized to access topics. It transforms a source string value extracted from the client certificate and stored as a variable, then extracts a substring, for use in authenticating the client request.
Note that you can apply this substring transformation, or either of the
The zero-based index offset of the first character to extract. If the index is out of bound from the string's length, authentication may fail.
The zero-based index offset of the last character to extract, where