For aSelectionInputwidget that uses a multiselect menu, a data source from Google Chat. The data source populates selection items for the multiselect menu. For example, a user can select Google Chat spaces that they're a member of.
Available for Google Chat apps and unavailable for Google Workspace add-ons.
Fields
Union fieldsource. The Google Chat data source.sourcecan be only one of the following:
A data source that populates Google Chat spaces as selection items for a multiselect menu. Only populates spaces that the user is a member of.
Available for Google Chat apps and unavailable for Google Workspace add-ons.
Fields
default_to_current_space
bool
If set totrue, the multiselect menu selects the current Google Chat space as an item by default.
HostAppDataSourceMarkup
For aSelectionInputwidget that uses a multiselect menu, a data source from a Google Workspace application. The data source populates selection items for the multiselect menu.
Available for Google Chat apps and unavailable for Google Workspace add-ons.
Fields
Union fielddata_source. The Google Workspace application that populates items for a multiselect menu.data_sourcecan be only one of the following:
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-06-06 UTC."],[],[],null,["# Package apps.extensions.markup\n\nIndex\n-----\n\n- [ChatClientDataSourceMarkup](/workspace/chat/api/reference/rpc/apps.extensions.markup#apps.extensions.markup.ChatClientDataSourceMarkup) (message)\n- [ChatClientDataSourceMarkup.SpaceDataSource](/workspace/chat/api/reference/rpc/apps.extensions.markup#apps.extensions.markup.ChatClientDataSourceMarkup.SpaceDataSource) (message)\n- [HostAppDataSourceMarkup](/workspace/chat/api/reference/rpc/apps.extensions.markup#apps.extensions.markup.HostAppDataSourceMarkup) (message)\n\nChatClientDataSourceMarkup\n--------------------------\n\nFor a [`SelectionInput`](/workspace/chat/api/reference/rpc/google.apps.card.v1#google.apps.card.v1.SelectionInput) widget that uses a multiselect menu, a data source from Google Chat. The data source populates selection items for the multiselect menu. For example, a user can select Google Chat spaces that they're a member of.\n\nAvailable for Google Chat apps and unavailable for Google Workspace add-ons.\n\n| Fields ||\n|---------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Union field `source`. The Google Chat data source. `source` can be only one of the following: ||\n| `space_data_source` | [SpaceDataSource](/workspace/chat/api/reference/rpc/apps.extensions.markup#apps.extensions.markup.ChatClientDataSourceMarkup.SpaceDataSource) Google Chat spaces that the user is a member of. |\n\nSpaceDataSource\n---------------\n\nA data source that populates Google Chat spaces as selection items for a multiselect menu. Only populates spaces that the user is a member of.\n\nAvailable for Google Chat apps and unavailable for Google Workspace add-ons.\n\n| Fields ||\n|----------------------------|------------------------------------------------------------------------------------------------------------|\n| `default_to_current_space` | `bool` If set to `true`, the multiselect menu selects the current Google Chat space as an item by default. |\n\nHostAppDataSourceMarkup\n-----------------------\n\nFor a [`SelectionInput`](/workspace/chat/api/reference/rpc/google.apps.card.v1#google.apps.card.v1.SelectionInput) widget that uses a multiselect menu, a data source from a Google Workspace application. The data source populates selection items for the multiselect menu.\n\nAvailable for Google Chat apps and unavailable for Google Workspace add-ons.\n\n| Fields ||\n|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Union field `data_source`. The Google Workspace application that populates items for a multiselect menu. `data_source` can be only one of the following: ||\n| `chat_data_source` | [ChatClientDataSourceMarkup](/workspace/chat/api/reference/rpc/apps.extensions.markup#apps.extensions.markup.ChatClientDataSourceMarkup) A data source from Google Chat. |"]]
Available for Google Chat apps and unavailable for Google Workspace add-ons.