(選用) 使用 One Tap 要求權杖：如果 Google 工作階段處於啟用狀態，所選外掛程式會使用 Google One Tap 要求權杖，並提供登入資訊和使用者核准的範圍。
(選用) Google 會傳回 ID 權杖：ID 權杖包含使用者身分資訊。
Marketplace 中的 Google Workspace 外掛程式
Google Workspace 外掛程式是與 Google Workspace 應用程式 (例如 Gmail、Google 文件和 Google 試算表) 整合的自訂應用程式。開發人員可藉此建立直接整合至 Google Workspace 的自訂使用者介面。外掛程式可協助使用者提高工作效率，減少切換情境。
使用者和管理員可以透過 Google Workspace Marketplace 尋找並安裝與 Google Workspace 整合的第三方企業應用程式。此外，您也可以在 Marketplace 集中管理已發布的 Google Workspace 外掛程式。使用者可以安裝及解除安裝已發布的增益集。管理員可以限制使用者能安裝的外掛程式。
[null,null,["上次更新時間：2025-08-29 (世界標準時間)。"],[],[],null,["# Meet add-on concepts\n\nGoogle Meet add-ons are used to build experiences directly into Google Meet.\nTo create add-ons, you must understand how a\nGoogle Workspace add-on is developed and eventually published in\nthe Google Workspace Marketplace.\n\nArchitecture\n------------\n\nThe following sequence diagram shows the architecture of how a\nGoogle Meet add-on uses Google Workspace resources.\n**Figure 1.** Architecture of how a Google Meet add-on uses Google Workspace resources.\n\nUsing a Google Meet add-on in a meeting works like this:\n\n1. **Load add-on panel** : The user clicks the meeting tools button in Meet to load the list of [installed add-ons](/workspace/meet/add-ons/guides/overview#installed-add-ons) into the add-on panel.\n2. **Select add-on**: A user selects an add-on in the add-on panel.\n3. **Load add-on iframe**: Meet loads the add-on side panel iframe URL that the developer specified in the manifest.\n4. **Create AddonSession** : The add-on creates an [`AddonSession`](/workspace/meet/add-ons/reference/websdk/addon_sdk.addonsession). This indicates to Meet that the add-on is loaded and is ready for use.\n5. **Add-on initialized**: The add-on is ready for use.\n6. **(Optional) Request token with One Tap** : The selected add-on uses [Google One Tap](/identity/gsi/web/guides/display-google-one-tap) to request a token with the sign-in information and user-approved scopes if there's an active Google session.\n7. **(Optional) Google returns ID token**: The ID token contains the user identity information.\n\nGoogle Workspace add-ons in the Marketplace\n-------------------------------------------\n\nGoogle Workspace add-ons are customized apps that integrate with Google Workspace\napplications, such as Gmail, Google Docs, and Google Sheets. They\nallow developers to create customized user interfaces that are directly\nintegrated into Google Workspace. Add-ons help users work more\nefficiently with less context switching.\n\nThe [Google Workspace Marketplace](https://workspace.google.com/marketplace/)\noffers users and administrators a way to find and install third-party enterprise\napps that are integrated with Google Workspace. The\nMarketplace is also the central place for managing\npublished Google Workspace add-ons. Users can install and uninstall published\nadd-ons. Admins can restrict the add-ons users can\ninstall.\n\nTypes of add-ons\n----------------\n\nIn general, there are two types of add-ons you can build: [Google Workspace add-ons](/apps-script/add-ons/concepts/types#google-workspace-add-ons)\nand\n[Editor add-ons](/apps-script/add-ons/concepts/types#editor-add-ons).\n\nFor the Meet add-ons SDK, you must build your add-ons\nusing Google Workspace add-ons.\n\nWith a Google Workspace add-on, you can extend multiple Google Workspace\napps such as Gmail, Google Calendar, and Google Drive. You specify\nwhich app the add-on is targeting, along with other\ndetails, in the [add-on manifest\nfile](/apps-script/add-ons/concepts/workspace-manifests). For the\nMeet add-ons SDK, you must declare a `meet` object within the `addOns`\nsection of the manifest file. For more information, see [Create a\ndeployment](/workspace/meet/add-ons/guides/deploy-add-on#create-deployment).\n\nA Google Workspace add-on can be developed in two different ways: either in\nGoogle Apps Script, or as a self-hosted add-on using\nyour preferred tech stack. Each of these add-ons contains a\nmanifest, which is made up of different sections. The Meet\nsection of the manifest contains information specific to how your\nadd-on is loaded from Google Meet and is unrelated to\nwhether the rest of your add-on is self-hosted or uses\nApps Script. Add-ons for Meet are\nloaded in an iframe and must reference web pages rather than [Card-based\ninterfaces](/apps-script/add-ons/concepts/card-interfaces).\n\nFor example, a manifest for a Google Workspace add-on might have a section for\nGmail that uses\n[`ComposeTrigger`](/apps-script/manifest/gmail-addons#composetrigger) and\n[`ContextualTrigger`](/apps-script/manifest/gmail-addons#contextualtrigger)\nobjects to return card interfaces, and a section for Meet that\nuses web, iOS, and Android objects to point to your web page and mobile app.\n**Figure 2.** An example manifest with Meet and Gmail sections.\n\nPublish an add-on\n-----------------\n\nWhen you publish your Google Workspace add-on, you make it available for\nothers to find, install, and use.\n\nFor more information, see [Publish your\nMeet add-on](/workspace/meet/add-ons/guides/publish).\n\nRelated topics\n--------------\n\n- [Deploy a Meet add-on](/workspace/meet/add-ons/guides/deploy-add-on)\n- [Best practices](/workspace/meet/add-ons/guides/best-practices)\n- [Add-ons types](/apps-script/add-ons/concepts/types)\n- [Gmail manifest resource](/apps-script/manifest/gmail-addons)"]]
，將已安裝的外掛程式載入外掛程式面板。