Policy documents allow HTML forms to restrict uploads based on certain conditions. If the policy document is expired or the conditions are not satisfied, submitting the form will not succeed.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-21 UTC."],[[["This page provides documentation for `PolicyDocumentV4`, a C++ class used in Google Cloud Storage to define policy documents for restricting uploads."],["Policy documents control upload restrictions via HTML forms, and failed form submissions can result from expired documents or unmet conditions."],["The documentation details available versions, ranging from the latest release candidate (2.37.0-rc) down to version 2.11.0, each linked to its respective reference."],["`PolicyDocumentV4` can be constructed with parameters like bucket name, object name, expiration duration, timestamp, and a set of conditions."],["The documentation also links to general information about policy documents in Google Cloud Storage, at https://cloud.google.com/storage/docs/xml-api/post-object#policydocument."]]],[]]
