Google services can filter the fields in a response using the X-Goog-FieldMask header. This can be useful in large responses, such as listing resources, where some of the fields are uninteresting.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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."],[[["The webpage provides documentation for the `FieldMaskOption` struct within the Google Cloud C++ client library, covering multiple versions."],["Version 2.37.0-rc is the latest release candidate version documented here, with numerous prior versions listed, down to 2.10.1."],["This struct allows for server-side filtering of fields in responses using the `X-Goog-FieldMask` header, a technique particularly valuable when handling large responses."],["`FieldMaskOption` is a type alias of `std::string`, which facilitates working with field masks."]]],[]]
