Create canvas - Automate.ax

slack.createCanvas creates a Slack Canvas with optional Markdown content. Set channelId to add the new canvas as a channel tab; Slack requires a channel for Canvas creation on free workspaces.

Example

automations/create-slack-canvas.automation.ts

import { automation, onDashboardRun } from "automate.ax"
import { slack } from "automate.ax/slack"

export default automation("Create launch canvas", () => {
  onDashboardRun({ title: "Create launch canvas" })

  slack.createCanvas({
    channelId: "C01234567",
    documentContent: {
      markdown: "# Launch plan\n\nOwners and milestones.",
      type: "markdown",
    },
    title: "Launch plan",
  })
})

Inputs

Input	Type	Required	Description
`title`	`string`	No	Initial canvas title.
`documentContent`	`{ type: "markdown"; markdown: string }`	No	Initial Markdown content, up to Slack’s 1 MiB limit.
`channelId`	`string`	No	Channel that receives a tab for the canvas. Required by Slack on free plans.
Second argument: `{ account }`	`string \| IntegrationAccountReference<"slack">`	No	Slack binding.

Output

Returns { canvasId } with the stable Slack Canvas ID.