Home > @runlightyear/slack > ImageBlock
ImageBlock interface
Signature:Required Properties
| Property | Modifiers | Type | Description |
|---|
| altText | | string | A plain-text summary of the image. This should not contain any markup. Maximum length for this field is 2000 characters. |
| imageUrl | | string | The URL of the image to be displayed. Maximum length for this field is 3000 characters. |
| type | | "image" | |
Optional Properties
| Property | Modifiers | Type | Description |
|---|
| blockId? | | string | A string acting as a unique identifier for a block. If not specified, one will be generated. Maximum length for this field is 255 characters. block_id should be unique for each message and each iteration of a message. If a message is updated, use a new block_id. |
| title? | | PlainTextObject | An optional title for the image in the form of a text object that can only be of type: plain_text. Maximum length for the text in this field is 2000 characters. |