This section lists resources you can refer to as you build add-ons.
Apps Script manifest files define a script project's configuration details. For add-ons, the manifest defines much of the add-on's behavior.
The Manifest structure documentation describes how a manifest is organized and its content. Configuration settings affecting Google Workspace add-on behavior are documented in the AddOns resource documentation.
Apps Script services
Add-ons built using Apps Script can use the many built-in Google Workspace services it provides to access Google Workspace application data. You can also use Apps Script advanced services to directly access the correspoding REST API from your add-on script project. Apps Script also provides built-in script services to assist with common tasks that aren't connected to a particular Google Workspace application (such as logging or data compression).
The following table provides a short summary of services that are often useful when building add-ons.
|Google Workspace services|
|Calendar service||Access and modify user Google Calendar data.|
|Document service||Create, access, and edit Google Docs.|
|Drive service||Create, access, and modify files in Google Drive.|
|Forms service||Create, access, and edit Google Forms.|
|Gmail service||Access user Gmail data and messages.|
|Slides service||Create, access, and edit Google Slides presentations.|
|Sheets service||Create, access, and edit Google Sheets.|
|Advanced Google services|
|Advanced Calendar service||Use the Calendar v3 REST API from your add-on script project.|
|Advanced Drive service||Use the Drive v2 REST API from your add-on script project.|
|Advanced Gmail service||Use the Gmail v1 REST API from your add-on script project.|
|Advanced Sheets service||Use the Sheets v4 REST API from your add-on script project.|
|Advanced Slides service||Use the Slides v1 REST API from your add-on script project.|
|console||Log information to Stackdriver. This is usually preferable to using the simpler Logger service.|
|Card service||Create card-based interfaces for Gmail add-ons. You can also use this service is to build interfaces for Google Chat bots. To build dialogs and sidebars for editor add-ons, you must use the HTML service instead.|
|Conference Data service||Only used for add-ons that interact with Google Calendar conferencing. This service lets your Google Workspace add-on create and sync third-party conferencing information in Google Calendar.|
|HTML service||Create and serve HTML. This service is used to build user interfaces for editor add-on sidebars and dialogs. For more information, see the Apps Script guide to HTML service. To build interfaces for Gmail add-ons, you must use the Card service instead.|
|Properties service||Store and retrieve add-on state and other information using property strings.|
|Script service||Access script triggers and other script-level information.|
|URL Fetch service||Retrieve and post information from or to third-party URLs. Often it is helpful to use the OAuth2 library for Apps Script in conjunction with this service to handle the details of OAuth2 authorization for third-party APIs.|
|Utilities service||Helper methods to handle data compression, encoding, decoding, JSON manipulation, and other miscellaneous tasks.|