A pseudo user identifier for charging per-user quotas. If not specified, the authenticated principal is used. If there is no authenticated principal, the client IP address will be used. When specified, a valid API key with service restrictions must be used to identify the quota project. Otherwise, this parameter is ignored.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe webpage provides documentation for various versions of \u003ccode\u003egoogle::cloud::QuotaUserOption\u003c/code\u003e, ranging from version 2.10.1 up to the latest release candidate 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eQuotaUserOption\u003c/code\u003e is used as a pseudo user identifier for charging per-user quotas, falling back to the authenticated principal or client IP address if not specified.\u003c/p\u003e\n"],["\u003cp\u003eSpecifying a \u003ccode\u003eQuotaUser\u003c/code\u003e requires a valid API key with service restrictions to identify the quota project; otherwise, it is ignored.\u003c/p\u003e\n"],["\u003cp\u003eThe parameter can be configured using system parameters.\u003c/p\u003e\n"],["\u003cp\u003eThe type alias for \u003ccode\u003eQuotaUserOption\u003c/code\u003e is \u003ccode\u003estd::string\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
