[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-07-25 (世界標準時間)。"],[],[],null,["# REST Resource: properties\n\n- [Resource: Property](#Property)\n - [JSON representation](#Property.SCHEMA_REPRESENTATION)\n- [Methods](#METHODS_SUMMARY)\n\nResource: Property\n------------------\n\nA key-value pair attached to a file that is either public or private to an application.\n\nThe following limits apply to file properties:\n\n- Maximum of 100 properties total per file\n- Maximum of 30 private properties per app\n- Maximum of 30 public properties\n- Maximum of 124 bytes size limit on (key + value) string in UTF-8 encoding for a single property\n\nSome resource methods (such as `properties.update`) require a `propertyKey`. Use the `properties.list` method to retrieve the key for a property.\n\n| JSON representation |\n|----------------------------------------------------------------------------------------------------------------------|\n| ``` { \"selfLink\": string, \"value\": string, \"visibility\": string, \"kind\": string, \"etag\": string, \"key\": string } ``` |\n\n| Fields ||\n|--------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `selfLink` | `string` Output only. The link back to this property. |\n| `value` | `string` The value of this property. |\n| `visibility` | `string` The visibility of this property. Allowed values are PRIVATE (default) and PUBLIC. Private properties can only be retrieved using an authenticated request. An authenticated request uses an access token obtained with a OAuth 2 client ID. You cannot use an API key to retrieve private properties. |\n| `kind` | `string` Output only. This is always `drive#property`. |\n| `etag` | `string` Output only. ETag of the property. |\n| `key` | `string` The key of this property. |\n\n| Methods ------- ||\n|------------------------------------------------------------------------|----------------------------------------------------------------|\n| ### [delete](/workspace/drive/api/reference/rest/v2/properties/delete) | Deletes a property. |\n| ### [get](/workspace/drive/api/reference/rest/v2/properties/get) | Gets a property by its key. |\n| ### [insert](/workspace/drive/api/reference/rest/v2/properties/insert) | Adds a property to a file, or updates it if it already exists. |\n| ### [list](/workspace/drive/api/reference/rest/v2/properties/list) | Lists a file's properties. |\n| ### [patch](/workspace/drive/api/reference/rest/v2/properties/patch) | Updates a property. |\n| ### [update](/workspace/drive/api/reference/rest/v2/properties/update) | Updates a property. |"]]