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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 documentation for the \u003ccode\u003eAuthorityOption\u003c/code\u003e within the Google Cloud C++ client library, showcasing its usage across multiple versions.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version available is 2.37.0-rc, with a list of prior versions ranging from 2.36.0 down to 2.10.1.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eAuthorityOption\u003c/code\u003e is used to configure the \u003ccode\u003eauthority\u003c/code\u003e attribute for gRPC requests, mapping to the \u003ccode\u003eauthority()\u003c/code\u003e field in \u003ccode\u003egrpc::ClientContext\u003c/code\u003e and the \u003ccode\u003e:authority\u003c/code\u003e pseudo-header in HTTP/2.\u003c/p\u003e\n"],["\u003cp\u003eFor REST services using HTTP/1.1 or HTTP/1.0, \u003ccode\u003eAuthorityOption\u003c/code\u003e configures the \u003ccode\u003eHost\u003c/code\u003e header.\u003c/p\u003e\n"],["\u003cp\u003eSetting the \u003ccode\u003eAuthorityOption\u003c/code\u003e to an empty string will not set any headers, which is useful when not using Google's production environment.\u003c/p\u003e\n"]]],[],null,[]]