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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 from 2.36.0 down to 2.10.1.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation details how to configure the "authority" attribute, which is the \u003ccode\u003eauthority()\u003c/code\u003e field in \u003ccode\u003egrpc::ClientContext\u003c/code\u003e for gRPC requests.\u003c/p\u003e\n"],["\u003cp\u003eFor REST-based services using HTTP/1.1 or HTTP/1.0, the "authority" attribute corresponds to the \u003ccode\u003eHost\u003c/code\u003e header.\u003c/p\u003e\n"],["\u003cp\u003eSetting this option 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 "authority" attribute's type alias is a \u003ccode\u003estd::string\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
