Filters

When matching based on request or response attributes (not just the URL), you can use filters to achieve more granular rule control. The syntax is:

pattern operator includeFilter://pattern1 ... excludeFilter://patternx ...

Multiple filters are matched "or"; as long as one of the filter conditions matches, the match is true.

Filter Types

Filter Type	Syntax	Purpose
Include Filter	includeFilter://pattern	Match only requests that match the specified conditions
Exclude Filter	excludeFilter://pattern	Exclude requests that match the specified conditions

Pattern Types

Match expressions used with includeFilter://<pattern> and excludeFilter://<pattern>.

General rules

• When no prefix is specified, the request URL is matched by default.
• Keyword matching is case-insensitive by default.
• Regex format is /regexp/; append i at the end to ignore case, e.g. /regexp/i.
• The probability value for chance ranges from 0 to 1.

Syntax	Match target	Example
b:pattern	Request body content: keyword (case-insensitive) or regex	includeFilter://b:keyword excludeFilter://b:/regexp/i
m:pattern	HTTP method: method name (case-insensitive) or regex	includeFilter://m:get excludeFilter://m:/regexp/i
i:pattern	Client or server IP: IP or regex	includeFilter://i:192.168.1.10 excludeFilter://i:/regexp/i
chance:probability	Random hit by probability: Math.random() < probability	includeFilter://chance:0.5 excludeFilter://chance:0.3
clientIp:pattern	Client IP: IP or regex	includeFilter://clientIp:192.168.1.10 excludeFilter://clientIp:/regexp/i
serverIp:pattern	Server IP: IP or regex	includeFilter://serverIp:192.168.1.10 excludeFilter://serverIp:/regexp/i
s:pattern	Response status code: status code or regex	includeFilter://s:/^20/ excludeFilter://s:200
reqH.header-key:pattern	Request header: keyword (case-insensitive) or regex	includeFilter://reqH.content-type:json excludeFilter://reqH.content-type:/regexp/i
resH.header-key:pattern	Response header: keyword (case-insensitive) or regex	includeFilter://resH.content-type:json excludeFilter://resH.content-type:/regexp/i
No-prefix pattern (any other xxxxxx)	Request URL, same as pattern	includeFilter://*/cgi-* excludeFilter://www.test.com includeFilter://https://www.test.com/path