With the URI User Filter, Repose can introspect a requests URI and set the X-PP-User and X-PP-Group headers accordingly. These headers get consumed by the Repose Rate Limiting Filter. The rate limiting group associated with the extracted identification data. X-PP-Group will be set to whatever is configured in the group element of the uri-user.cfg.xml file. Quality assigned to user using the incoming identification data. Quality factors are defined in the HTTP RFC - Section-3.9 (for usage examples, seeHTTP RFC - Section 14.1) as a mechanism for weighting values in multi-value headers. Possible values for quality are 0 to 1.0. A list of mapping elements which are regular expressions used to extract the identification information from the request URI. The first regular expression in the list that finds a match in the URI is what is used to extract the data. X-PP-User will be set to the identification data retrieved from the first matching regular expression. Describes how to extract identification information from a given URI Unique identifier of the mapping Regex used to extract identification information from a given URI