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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 webpage provides a comprehensive list of versions for the \u003ccode\u003egoogle::cloud::AuthorityOption\u003c/code\u003e, ranging from version 2.10.1 up to the latest release candidate, 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eAuthorityOption\u003c/code\u003e configures the \u003ccode\u003eauthority()\u003c/code\u003e field in \u003ccode\u003egrpc::ClientContext\u003c/code\u003e for gRPC requests, and 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 will not set any headers, and this is useful for non-production environments.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eAuthorityOption\u003c/code\u003e is an alias of \u003ccode\u003estd::string\u003c/code\u003e as the data type.\u003c/p\u003e\n"]]],[],null,[]]