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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-18 UTC."],[[["This webpage provides documentation for the `AuthorityOption` within the Google Cloud C++ client library, offering various version-specific details."],["The latest version available is a release candidate, `2.37.0-rc`, while the stable versions range from `2.36.0` down to `2.10.1`."],["The `AuthorityOption` is used to configure the \"authority\" attribute, which, for gRPC requests, corresponds to the `authority()` field in `grpc::ClientContext`, and for REST, corresponds to the `Host` header."],["Setting the `AuthorityOption` to an empty string will not set any headers, useful for environments outside of Google's production infrastructure."],["The type of `AuthorityOption` is an alias for `std::string`."]]],[]]