For REST-based services using HTTP/1.1 or HTTP/1.0 this is the Host header.
Setting this option to the empty string has no effect, i.e., no headers are set. This can be useful if you are not using Google's production environment.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 latest version available is 2.37.0-rc, with previous versions ranging down to 2.10.1 also accessible.\u003c/p\u003e\n"],["\u003cp\u003eThis content relates to the \u003ccode\u003eAuthorityOption\u003c/code\u003e struct within the \u003ccode\u003egoogle::cloud\u003c/code\u003e namespace, specifically its configurations.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAuthorityOption\u003c/code\u003e configures the authority attribute, which corresponds to the \u003ccode\u003eauthority()\u003c/code\u003e field in the \u003ccode\u003egrpc::ClientContext\u003c/code\u003e for gRPC requests, or the \u003ccode\u003eHost\u003c/code\u003e header for REST-based services using HTTP/1.1 or HTTP/1.0.\u003c/p\u003e\n"],["\u003cp\u003eSetting the \u003ccode\u003eAuthorityOption\u003c/code\u003e to an empty string results in no headers being set, which is useful when not using Google's production environment.\u003c/p\u003e\n"],["\u003cp\u003eThe underlying type for the authority attribute is an alias of \u003ccode\u003estd::string\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
