Cards v2

object (CardHeader)

The header of the card. A header usually contains a leading image and a title. Headers always appear at the top of a card.

object (Section)

Contains a collection of widgets. Each section has its own, optional header. Sections are visually separated by a line divider. For an example in Google Chat apps, see Define a section of a card.

enum (DividerStyle)

The divider style between the header, sections and footer.

object (CardAction)

The card's actions. Actions are added to the card's toolbar menu.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

For example, the following JSON constructs a card action menu with Settings and Send Feedback options:

"cardActions": [
  {
    "actionLabel": "Settings",
    "onClick": {
      "action": {
        "functionName": "goToView",
        "parameters": [
          {
            "key": "viewType",
            "value": "SETTING"
         }
        ],
        "loadIndicator": "LoadIndicator.SPINNER"
      }
    }
  },
  {
    "actionLabel": "Send Feedback",
    "onClick": {
      "openLink": {
        "url": "https://example.com/feedback"
      }
    }
  }
]

string

Name of the card. Used as a card identifier in card navigation.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

object (CardFixedFooter)

The fixed footer shown at the bottom of this card.

Setting fixedFooter without specifying a primaryButton or a secondaryButton causes an error. For Chat apps, you can use fixed footers in dialogs, but not card messages.

Available for Google Chat apps and Google Workspace Add-ons.

enum (DisplayStyle)

In Google Workspace Add-ons, sets the display properties of the peekCardHeader.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

object (CardHeader)

When displaying contextual content, the peek card header acts as a placeholder so that the user can navigate forward between the homepage cards and the contextual cards.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

string

Required. The title of the card header. The header has a fixed height: if both a title and subtitle are specified, each takes up one line. If only the title is specified, it takes up both lines.

string

The subtitle of the card header. If specified, appears on its own line below the title.

enum (ImageType)

The shape used to crop the image.

Available for Google Chat apps and Google Workspace Add-ons.

string

The HTTPS URL of the image in the card header.

string

The alternative text of this image that's used for accessibility.

string

Text that appears at the top of a section. Supports simple HTML formatted text. For more information about formatting text, see Formatting text in Google Chat apps and Formatting text in Google Workspace Add-ons.

object (Widget)

All the widgets in the section. Must contain at least one widget.

boolean

Indicates whether this section is collapsible.

Collapsible sections hide some or all widgets, but users can expand the section to reveal the hidden widgets by clicking Show more. Users can hide the widgets again by clicking Show less.

To determine which widgets are hidden, specify uncollapsibleWidgetsCount.

integer

The number of uncollapsible widgets which remain visible even when a section is collapsed.

For example, when a section contains five widgets and the uncollapsibleWidgetsCount is set to 2, the first two widgets are always shown and the last three are collapsed by default. The uncollapsibleWidgetsCount is taken into account only when collapsible is true.

object (CollapseControl)

Optional. Define the expand and collapse button of the section. This button will be shown only if the section is collapsible. If this field isn't set, the default button is used.

enum (HorizontalAlignment)

Specifies whether widgets align to the left, right, or center of a column.

object (TextParagraph)

Displays a text paragraph. Supports simple HTML formatted text. For more information about formatting text, see Formatting text in Google Chat apps and Formatting text in Google Workspace Add-ons.

For example, the following JSON creates a bolded text:

"textParagraph": {
  "text": "  <b>bold text</b>"
}

object (Image)

Displays an image.

For example, the following JSON creates an image with alternative text:

"image": {
  "imageUrl":
  "https://developers.google.com/workspace/chat/images/quickstart-app-avatar.png",
  "altText": "Chat app avatar"
}

object (DecoratedText)

Displays a decorated text item.

For example, the following JSON creates a decorated text widget showing email address:

"decoratedText": {
  "icon": {
    "knownIcon": "EMAIL"
  },
  "topLabel": "Email Address",
  "text": "sasha@example.com",
  "bottomLabel": "This is a new Email address!",
  "switchControl": {
    "name": "has_send_welcome_email_to_sasha",
    "selected": false,
    "controlType": "CHECKBOX"
  }
}

object (ButtonList)

A list of buttons.

For example, the following JSON creates two buttons. The first is a blue text button and the second is an image button that opens a link:

"buttonList": {
  "buttons": [
    {
      "text": "Edit",
      "color": {
        "red": 0,
        "green": 0,
        "blue": 1,
      },
      "disabled": true,
    },
    {
      "icon": {
        "knownIcon": "INVITE",
        "altText": "check calendar"
      },
      "onClick": {
        "openLink": {
          "url": "https://example.com/calendar"
        }
      }
    }
  ]
}

object (TextInput)

Displays a text box that users can type into.

For example, the following JSON creates a text input for an email address:

"textInput": {
  "name": "mailing_address",
  "label": "Mailing Address"
}

As another example, the following JSON creates a text input for a programming language with static suggestions:

"textInput": {
  "name": "preferred_programing_language",
  "label": "Preferred Language",
  "initialSuggestions": {
    "items": [
      {
        "text": "C++"
      },
      {
        "text": "Java"
      },
      {
        "text": "JavaScript"
      },
      {
        "text": "Python"
      }
    ]
  }
}

object (SelectionInput)

Displays a selection control that lets users select items. Selection controls can be checkboxes, radio buttons, switches, or dropdown menus.

For example, the following JSON creates a dropdown menu that lets users choose a size:

"selectionInput": {
  "name": "size",
  "label": "Size"
  "type": "DROPDOWN",
  "items": [
    {
      "text": "S",
      "value": "small",
      "selected": false
    },
    {
      "text": "M",
      "value": "medium",
      "selected": true
    },
    {
      "text": "L",
      "value": "large",
      "selected": false
    },
    {
      "text": "XL",
      "value": "extra_large",
      "selected": false
    }
  ]
}

object (DateTimePicker)

Displays a widget that lets users input a date, time, or date and time.

For example, the following JSON creates a date time picker to schedule an appointment:

"dateTimePicker": {
  "name": "appointment_time",
  "label": "Book your appointment at:",
  "type": "DATE_AND_TIME",
  "valueMsEpoch": "796435200000"
}

object (Divider)

Displays a horizontal line divider between widgets.

For example, the following JSON creates a divider:

"divider": {
}

object (Grid)

Displays a grid with a collection of items.

A grid supports any number of columns and items. The number of rows is determined by the upper bounds of the number items divided by the number of columns. A grid with 10 items and 2 columns has 5 rows. A grid with 11 items and 2 columns has 6 rows.

Available for Google Chat apps and Google Workspace Add-ons.

For example, the following JSON creates a 2 column grid with a single item:

"grid": {
  "title": "A fine collection of items",
  "columnCount": 2,
  "borderStyle": {
    "type": "STROKE",
    "cornerRadius": 4
  },
  "items": [
    {
      "image": {
        "imageUri": "https://www.example.com/image.png",
        "cropStyle": {
          "type": "SQUARE"
        },
        "borderStyle": {
          "type": "STROKE"
        }
      },
      "title": "An item",
      "textAlignment": "CENTER"
    }
  ],
  "onClick": {
    "openLink": {
      "url": "https://www.example.com"
    }
  }
}

object (Columns)

Displays up to 2 columns.

To include more than 2 columns, or to use rows, use the Grid widget.

For example, the following JSON creates 2 columns that each contain text paragraphs:

"columns": {
  "columnItems": [
    {
      "horizontalSizeStyle": "FILL_AVAILABLE_SPACE",
      "horizontalAlignment": "CENTER",
      "verticalAlignment": "CENTER",
      "widgets": [
        {
          "textParagraph": {
            "text": "First column text paragraph"
          }
        }
      ]
    },
    {
      "horizontalSizeStyle": "FILL_AVAILABLE_SPACE",
      "horizontalAlignment": "CENTER",
      "verticalAlignment": "CENTER",
      "widgets": [
        {
          "textParagraph": {
            "text": "Second column text paragraph"
          }
        }
      ]
    }
  ]
}

object (Carousel)

A carousel contains a collection of nested widgets. For example, this is a JSON representation of a carousel that contains two text paragraphs.

{
  "widgets": [
    {
      "textParagraph": {
        "text": "First text paragraph in the carousel."
      }
    },
    {
      "textParagraph": {
        "text": "Second text paragraph in the carousel."
      }
    }
  ]
}

object (ChipList)

A list of chips.

For example, the following JSON creates two chips. The first is a text chip and the second is an icon chip that opens a link:

"chipList": {
  "chips": [
    {
      "text": "Edit",
      "disabled": true,
    },
    {
      "icon": {
        "knownIcon": "INVITE",
        "altText": "check calendar"
      },
      "onClick": {
        "openLink": {
          "url": "https://example.com/calendar"
        }
      }
    }
  ]
}

string

The text that's shown in the widget.

integer

The maximum number of lines of text that are displayed in the widget. If the text exceeds the specified maximum number of lines, the excess content is concealed behind a show more button. If the text is equal or shorter than the specified maximum number of lines, a show more button isn't displayed.

The default value is 0, in which case all context is displayed. Negative values are ignored.

string

The HTTPS URL that hosts the image.

For example:

https://developers.google.com/workspace/chat/images/quickstart-app-avatar.png

object (OnClick)

When a user clicks the image, the click triggers this action.

string

The alternative text of this image that's used for accessibility.

object (Action)

If specified, an action is triggered by this onClick.

object (OpenLink)

If specified, this onClick triggers an open link action.

object (Action)

An add-on triggers this action when the action needs to open a link. This differs from the openLink above in that this needs to talk to server to get the link. Thus some preparation work is required for web client to do before the open link action response comes back.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

object (Card)

A new card is pushed to the card stack after clicking if specified.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

object (OverflowMenu)

If specified, this onClick opens an overflow menu.

string

A custom function to invoke when the containing element is clicked or otherwise activated.

For example usage, see Read form data.

object (ActionParameter)

List of action parameters.

enum (LoadIndicator)

Specifies the loading indicator that the action displays while making the call to the action.

boolean

Indicates whether form values persist after the action. The default value is false.

If true, form values remain after the action is triggered. To let the user make changes while the action is being processed, set LoadIndicator to NONE. For card messages in Chat apps, you must also set the action's ResponseType to UPDATE_MESSAGE and use the same cardId from the card that contained the action.

If false, the form values are cleared when the action is triggered. To prevent the user from making changes while the action is being processed, set LoadIndicator to SPINNER.

enum (Interaction)

Optional. Required when opening a dialog.

What to do in response to an interaction with a user, such as a user clicking a button in a card message.

If unspecified, the app responds by executing an action —like opening a link or running a function—as normal.

By specifying an interaction, the app can respond in special interactive ways. For example, by setting interaction to OPEN_DIALOG, the app can open a dialog. When specified, a loading indicator isn't shown. If specified for an add-on, the entire card is stripped and nothing is shown in the client.

Available for Google Chat apps and unavailable for Google Workspace Add-ons.

string

Optional. Fill this list with the names of widgets that this Action needs for a valid submission.

If the widgets listed here don't have a value when this Action is invoked, the form submission is aborted.

Available for Google Chat apps and Google Workspace Add-ons.

boolean

Optional. If this is true, then all widgets are considered required by this action.

Available for Google Chat apps and Google Workspace Add-ons.

string

The name of the parameter for the action script.

string

The value of the parameter.

string

The URL to open.

enum (OpenAs)

How to open a link.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

enum (OnClose)

Whether the client forgets about a link after opening it, or observes it until the window closes.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

object (OverflowMenuItem)

Required. The list of menu options.

object (Icon)

The icon displayed in front of the text.

string

Required. The text that identifies or describes the item to users.

object (OnClick)

Required. The action invoked when a menu option is selected. This OnClick cannot contain an OverflowMenu, any specified OverflowMenu is dropped and the menu item disabled.

boolean

Whether the menu option is disabled. Defaults to false.

string

Optional. A description of the icon used for accessibility. If unspecified, the default value Button is provided. As a best practice, you should set a helpful description for what the icon displays, and if applicable, what it does. For example, A user's account portrait, or Opens a new browser tab and navigates to the Google Chat developer documentation at https://developers.google.com/workspace/chat.

If the icon is set in a Button, the altText appears as helper text when the user hovers over the button. However, if the button also sets text, the icon's altText is ignored.

enum (ImageType)

The crop style applied to the image. In some cases, applying a CIRCLE crop causes the image to be drawn larger than a built-in icon.

string

Display one of the built-in icons provided by Google Workspace.

For example, to display an airplane icon, specify AIRPLANE. For a bus, specify BUS.

For a full list of supported icons, see built-in icons.

string

Display a custom icon hosted at an HTTPS URL.

For example:

"iconUrl":
"https://developers.google.com/workspace/chat/images/quickstart-app-avatar.png"

Supported file types include .png and .jpg.

object (MaterialIcon)

Display one of the Google Material Icons.

For example, to display a checkbox icon, use

"materialIcon": {
  "name": "check_box"
}

Available for Google Chat apps and unavailable for Google Workspace Add-ons.

string

The icon name defined in the Google Material Icon, for example, check_box. Any invalid names are abandoned and replaced with empty string and results in the icon failing to render.

boolean

Whether the icon renders as filled. Default value is false.

To preview different icon settings, go to Google Font Icons and adjust the settings under Customize.

integer

The stroke weight of the icon. Choose from {100, 200, 300, 400, 500, 600, 700}. If absent, default value is 400. If any other value is specified, the default value is used.

To preview different icon settings, go to Google Font Icons and adjust the settings under Customize.

integer

Weight and grade affect a symbol’s thickness. Adjustments to grade are more granular than adjustments to weight and have a small impact on the size of the symbol. Choose from {-25, 0, 200}. If absent, default value is 0. If any other value is specified, the default value is used.

To preview different icon settings, go to Google Font Icons and adjust the settings under Customize.

object (Icon)

Deprecated in favor of startIcon.

object (Icon)

The icon displayed in front of the text.

string

The text that appears above text. Always truncates.

string

Required. The primary text.

Supports simple formatting. For more information about formatting text, see Formatting text in Google Chat apps and Formatting text in Google Workspace Add-ons.

boolean

The wrap text setting. If true, the text wraps and displays on multiple lines. Otherwise, the text is truncated.

Only applies to text, not topLabel and bottomLabel.

string

The text that appears below text. Always wraps.

object (OnClick)

This action is triggered when users click topLabel or bottomLabel.

object (Button)

A button that a user can click to trigger an action.

object (SwitchControl)

A switch widget that a user can click to change its state and trigger an action.

object (Icon)

An icon displayed after the text.

Supports built-in and custom icons.

string

The text displayed inside the button.

object (Icon)

An icon displayed inside the button. If both icon and text are set, then the icon appears before the text.

object (Color)

Optional. The color of the button. If set, the button type is set to FILLED and the color of text and icon fields are set to a contrasting color for readability. For example, if the button color is set to blue, any text or icons in the button are set to white.

To set the button color, specify a value for the red, green, and blue fields. The value must be a float number between 0 and 1 based on the RGB color value, where 0 (0/255) represents the absence of color and 1 (255/255) represents the maximum intensity of the color.

For example, the following sets the color to red at its maximum intensity:

"color": {
   "red": 1,
   "green": 0,
   "blue": 0,
}

The alpha field is unavailable for button color. If specified, this field is ignored.

object (OnClick)

Required. The action to perform when a user clicks the button, such as opening a hyperlink or running a custom function.

boolean

If true, the button is displayed in an inactive state and doesn't respond to user actions.

string

The alternative text that's used for accessibility.

Set descriptive text that lets users know what the button does. For example, if a button opens a hyperlink, you might write: "Opens a new browser tab and navigates to the Google Chat developer documentation at https://developers.google.com/workspace/chat".

enum (Type)

Optional. The type of a button. If unset, button type defaults to OUTLINED. If the color field is set, the button type is forced to FILLED and any value set for this field is ignored.

number

The amount of red in the color as a value in the interval [0, 1].

number

The amount of green in the color as a value in the interval [0, 1].

number

The amount of blue in the color as a value in the interval [0, 1].

number

The fraction of this color that should be applied to the pixel. That is, the final pixel color is defined by the equation:

pixel color = alpha * (this color) + (1.0 - alpha) * (background color)

This means that a value of 1.0 corresponds to a solid color, whereas a value of 0.0 corresponds to a completely transparent color. This uses a wrapper message rather than a simple float scalar so that it is possible to distinguish between a default value and the value being unset. If omitted, this color object is rendered as a solid color (as if the alpha value had been explicitly given a value of 1.0).

string

The name by which the switch widget is identified in a form input event.

For details about working with form inputs, see Receive form data.

string

The value entered by a user, returned as part of a form input event.

For details about working with form inputs, see Receive form data.

boolean

When true, the switch is selected.

object (Action)

The action to perform when the switch state is changed, such as what function to run.

enum (ControlType)

How the switch appears in the user interface.

Available for Google Chat apps and Google Workspace Add-ons.

object (Button)

An array of buttons.

string

The name by which the text input is identified in a form input event.

For details about working with form inputs, see Receive form data.

string

The text that appears above the text input field in the user interface.

Specify text that helps the user enter the information your app needs. For example, if you are asking someone's name, but specifically need their surname, write surname instead of name.

Required if hintText is unspecified. Otherwise, optional.

string

Text that appears below the text input field meant to assist users by prompting them to enter a certain value. This text is always visible.

Required if label is unspecified. Otherwise, optional.

string

The value entered by a user, returned as part of a form input event.

For details about working with form inputs, see Receive form data.

enum (Type)

How a text input field appears in the user interface. For example, whether the field is single or multi-line.

object (Action)

What to do when a change occurs in the text input field. For example, a user adding to the field or deleting text.

Examples of actions to take include running a custom function or opening a dialog in Google Chat.

object (Suggestions)

Suggested values that users can enter. These values appear when users click inside the text input field. As users type, the suggested values dynamically filter to match what the users have typed.

For example, a text input field for programming language might suggest Java, JavaScript, Python, and C++. When users start typing Jav, the list of suggestions filters to show just Java and JavaScript.

Suggested values help guide users to enter values that your app can make sense of. When referring to JavaScript, some users might enter javascript and others java script. Suggesting JavaScript can standardize how users interact with your app.

When specified, TextInput.type is always SINGLE_LINE, even if it's set to MULTIPLE_LINE.

Available for Google Chat apps and Google Workspace Add-ons.

object (Action)

Optional. Specify what action to take when the text input field provides suggestions to users who interact with it.

If unspecified, the suggestions are set by initialSuggestions and are processed by the client.

If specified, the app takes the action specified here, such as running a custom function.

Available for Google Workspace Add-ons and unavailable for Google Chat apps.

object (Validation)

Specify the input format validation necessary for this text field.

Available for Google Chat apps and Google Workspace Add-ons.

string

Text that appears in the text input field when the field is empty. Use this text to prompt users to enter a value. For example, Enter a number from 0 to 100.

Available for Google Chat apps and unavailable for Google Workspace Add-ons.

Action

Navigation

Pushes, pops, or updates a card.

Developer Preview: Add-ons in Google Chat.

Card

Pushes a card onto the card stack.

Developer Preview: For dialogs in Google Chat, opens or updates a dialog.

Card

Updates the top card with a new card and preserves filled form fields values. For a non-equivalent field, the value is dropped.

Developer Preview: For dialogs in Google Chat, opens or updates a dialog.

object (SuggestionItem)

A list of suggestions used for autocomplete recommendations in text input fields.

string

The value of a suggested input to a text input field. This is equivalent to what users enter themselves.

integer

Specify the character limit for text input widgets. Note that this is only used for text input and is ignored for other widgets.

Available for Google Chat apps and Google Workspace Add-ons.

enum (InputType)

Specify the type of the input widgets.

Available for Google Chat apps and Google Workspace Add-ons.

string

Required. The name that identifies the selection input in a form input event.

For details about working with form inputs, see Receive form data.

string

The text that appears above the selection input field in the user interface.

Specify text that helps the user enter the information your app needs. For example, if users are selecting the urgency of a work ticket from a drop-down menu, the label might be "Urgency" or "Select urgency".

enum (SelectionType)

The type of items that are displayed to users in a SelectionInput widget. Selection types support different types of interactions. For example, users can select one or more checkboxes, but they can only select one value from a dropdown menu.

object (SelectionItem)

An array of selectable items. For example, an array of radio buttons or checkboxes. Supports up to 100 items.

object (Action)

If specified, the form is submitted when the selection changes. If not specified, you must specify a separate button that submits the form.

For details about working with form inputs, see Receive form data.

integer

For multiselect menus, the maximum number of items that a user can select. Minimum value is 1 item. If unspecified, defaults to 3 items.

integer

For multiselect menus, the number of text characters that a user inputs before the menu returns suggested selection items.

If unset, the multiselect menu uses the following default values:

• If the menu uses a static array of SelectionInput items, defaults to 0 characters and immediately populates items from the array.
• If the menu uses a dynamic data source ( multi_select_data_source), defaults to 3 characters before querying the data source to return suggested items.

object (Action)

An external data source, such as a relational database.

object (PlatformDataSource)

A data source from Google Workspace.

string

The text that identifies or describes the item to users.

string

The value associated with this item. The client should use this as a form input value.

For details about working with form inputs, see Receive form data.

boolean

Whether the item is selected by default. If the selection input only accepts one value (such as for radio buttons or a dropdown menu), only set this field for one item.

string

For multiselect menus, the URL for the icon displayed next to the item's text field. Supports PNG and JPEG files. Must be an HTTPS URL. For example, https://developers.google.com/workspace/chat/images/quickstart-app-avatar.png.

string

For multiselect menus, a text description or label that's displayed below the item's text field.

enum (CommonDataSource)

A data source shared by all Google Workspace applications, such as users in a Google Workspace organization.

object (HostAppDataSourceMarkup)

A data source that's unique to a Google Workspace host application, such spaces in Google Chat.

This field supports the Google API Client Libraries but isn't available in the Cloud Client Libraries. To learn more, see Install the client libraries.

object (ChatClientDataSourceMarkup)

A data source from Google Chat.

object (SpaceDataSource)

Google Chat spaces that the user is a member of.

boolean

If set to true, the multiselect menu selects the current Google Chat space as an item by default.

string

The name by which the DateTimePicker is identified in a form input event.

For details about working with form inputs, see Receive form data.

string

The text that prompts users to input a date, a time, or a date and time. For example, if users are scheduling an appointment, use a label such as Appointment date or Appointment date and time.

enum (DateTimePickerType)

Whether the widget supports inputting a date, a time, or the date and time.

string (int64 format)

The default value displayed in the widget, in milliseconds since Unix epoch time.

Specify the value based on the type of picker ( DateTimePickerType):

• DATE_AND_TIME : a calendar date and time in UTC. For example, to represent January 1, 2023 at 12:00 PM UTC, use 1672574400000.
• DATE_ONLY : a calendar date at 00:00:00 UTC. For example, to represent January 1, 2023, use 1672531200000.
• TIME_ONLY : a time in UTC. For example, to represent 12:00 PM, use 43200000 (or 12 * 60 * 60 * 1000).

integer

The number representing the time zone offset from UTC, in minutes. If set, the valueMsEpoch is displayed in the specified time zone. If unset, the value defaults to the user's time zone setting.

object (Action)

Triggered when the user clicks Save or Clear from the DateTimePicker interface.

string

The text that displays in the grid header.

object (GridItem)

The items to display in the grid.

object (BorderStyle)

The border style to apply to each grid item.

integer

The number of columns to display in the grid. A default value is used if this field isn't specified, and that default value is different depending on where the grid is shown (dialog versus companion).

object (OnClick)

This callback is reused by each individual grid item, but with the item's identifier and index in the items list added to the callback's parameters.

string

A user-specified identifier for this grid item. This identifier is returned in the parent grid's onClick callback parameters.

object (ImageComponent)

The image that displays in the grid item.

string

The grid item's title.

string

The grid item's subtitle.

enum (GridItemLayout)

The layout to use for the grid item.

string

The image URL.

string

The accessibility label for the image.

object (ImageCropStyle)

The crop style to apply to the image.

object (BorderStyle)

The border style to apply to the image.

enum (ImageCropType)

The crop type.

number

The aspect ratio to use if the crop type is RECTANGLE_CUSTOM.

For example, here's how to apply a 16:9 aspect ratio:

cropStyle {
 "type": "RECTANGLE_CUSTOM",
 "aspectRatio": 16/9
}

enum (BorderType)

The border type.

object (Color)

The colors to use when the type is BORDER_TYPE_STROKE.

To set the stroke color, specify a value for the red, green, and blue fields. The value must be a float number between 0 and 1 based on the RGB color value, where 0 (0/255) represents the absence of color and 1 (255/255) represents the maximum intensity of the color.

For example, the following sets the color to red at its maximum intensity:

"color": {
   "red": 1,
   "green": 0,
   "blue": 0,
}

The alpha field is unavailable for stroke color. If specified, this field is ignored.

integer

The corner radius for the border.

object (Column)

An array of columns. You can include up to 2 columns in a card or dialog.

enum (HorizontalSizeStyle)

Specifies how a column fills the width of the card.

enum (HorizontalAlignment)

Specifies whether widgets align to the left, right, or center of a column.

enum (VerticalAlignment)

Specifies whether widgets align to the top, bottom, or center of a column.

object (Widgets)

An array of widgets included in a column. Widgets appear in the order that they are specified.

object (TextParagraph)

TextParagraph widget.

object (Image)

Image widget.

object (DecoratedText)

DecoratedText widget.

object (ButtonList)

ButtonList widget.

object (TextInput)

TextInput widget.

object (SelectionInput)

SelectionInput widget.

object (DateTimePicker)

DateTimePicker widget.

object (ChipList)

ChipList widget.

enum (Layout)

Specified chip list layout.

object (Chip)

An array of chips.

object (Icon)

The icon image. If both icon and text are set, then the icon appears before the text.

string

The text displayed inside the chip.

object (OnClick)

Optional. The action to perform when a user clicks the chip, such as opening a hyperlink or running a custom function.

boolean

Whether the chip is in an active state and responds to user actions. Defaults to true. Deprecated. Use disabled instead.

boolean

Whether the chip is in an inactive state and ignores user actions. Defaults to false.

string

The alternative text that's used for accessibility.

Set descriptive text that lets users know what the chip does. For example, if a chip opens a hyperlink, write: "Opens a new browser tab and navigates to the Google Chat developer documentation at https://developers.google.com/workspace/chat".

object (CarouselCard)

A list of cards included in the carousel.

object (NestedWidget)

A list of widgets displayed in the carousel card. The widgets are displayed in the order that they are specified.

object (NestedWidget)

A list of widgets displayed at the bottom of the carousel card. The widgets are displayed in the order that they are specified.

object (TextParagraph)

A text paragraph widget.

object (ButtonList)

A button list widget.

object (Image)

An image widget.

enum (HorizontalAlignment)

The horizontal alignment of the expand and collapse button.

object (Button)

Optional. Define a customizable button to expand the section. Both expandButton and collapseButton field must be set. Only one field set will not take into effect. If this field isn't set, the default button is used.

object (Button)

Optional. Define a customizable button to collapse the section. Both expandButton and collapseButton field must be set. Only one field set will not take into effect. If this field isn't set, the default button is used.

string

The label that displays as the action menu item.

object (OnClick)

The onClick action for this action item.

object (Button)

The primary button of the fixed footer. The button must be a text button with text and color set.

object (Button)

The secondary button of the fixed footer. The button must be a text button with text and color set. If secondaryButton is set, you must also set primaryButton.