Message Cards

{
  "content": {
    "head": {          // Optional header
      "text": "Title",
      "sub_head": { "text": "Subtitle" }
    },
    "body": [          // Array of components
      { "type": "message", "text": "Content" },
      { "type": "actions", "items": [...] }
      // ... more components
    ]
  }
}

{
  "type": "message",
  "text": "Hello, this is plain text"
}

{
  "type": "header",
  "text": "Main Heading",
  "style": {
    "bold": true,
    "italic": false
  }
}

{
  "type": "styled_text",
  "text": "**Bold** *italic* `code`"
}

{
  "type": "actions",
  "items": [
    {
      "text": "Approve",
      "value": "approve",
      "style": "Primary"      // Primary, Danger, Default
    },
    {
      "text": "Reject",
      "value": "reject",
      "style": "Danger"
    }
  ]
}

{
  "type": "dropdown",
  "select_items": [
    { "text": "Option 1", "value": "opt1" },
    { "text": "Option 2", "value": "opt2" }
  ]
}

{
  "type": "form_field",
  "editable": true,
  "text": "Enter your name"
}

{
  "type": "section",
  "sidebar_color": "#3b82f6",      // Hex color
  "sections": [
    { "type": "message", "text": "Grouped content" }
  ]
}

{
  "type": "fields",
  "items": [
    { "key": "Status", "value": "Active" },
    { "key": "Priority", "value": "High" },
    { "key": "Assignee", "value": "John Doe" }
  ]
}

{
  "type": "divider"
}

{
  "type": "attachments",
  "img_url": "https://example.com/image.jpg",
  "resource_url": "https://example.com/full-page",
  "information": {
    "title": { "text": "Image Title" },
    "description": { "text": "Click to view" }
  }
}

{
  "content": {
    "head": {
      "text": "Build #123 Complete",
      "sub_head": { "text": "main branch" }
    },
    "body": [
      {
        "type": "section",
        "sidebar_color": "#10b981",
        "sections": [
          { "type": "message", "text": "✅ Build completed successfully" }
        ]
      },
      {
        "type": "fields",
        "items": [
          { "key": "Branch", "value": "main" },
          { "key": "Commit", "value": "abc123" },
          { "key": "Duration", "value": "2m 34s" }
        ]
      },
      {
        "type": "actions",
        "items": [
          { "text": "View Logs", "value": "view_logs", "style": "Primary" },
          { "text": "Deploy", "value": "deploy", "style": "Default" }
        ]
      }
    ]
  }
}

{
  "content": {
    "head": {
      "text": "Expense Approval Required"
    },
    "body": [
      { "type": "message", "text": "John Doe submitted an expense report" },
      {
        "type": "fields",
        "items": [
          { "key": "Amount", "value": "$500.00" },
          { "key": "Category", "value": "Travel" },
          { "key": "Date", "value": "Feb 9, 2026" }
        ]
      },
      { "type": "divider" },
      {
        "type": "actions",
        "items": [
          { "text": "Approve", "value": "approve_500", "style": "Primary" },
          { "text": "Reject", "value": "reject_500", "style": "Danger" },
          { "text": "View Details", "value": "details_500", "style": "Default" }
        ]
      }
    ]
  }
}

{
  "content": {
    "head": {
      "text": "⚠️ Service Alert"
    },
    "body": [
      {
        "type": "section",
        "sidebar_color": "#ef4444",
        "sections": [
          { "type": "message", "text": "Database connection failed" }
        ]
      },
      {
        "type": "fields",
        "items": [
          { "key": "Service", "value": "api-prod" },
          { "key": "Error", "value": "Connection timeout" },
          { "key": "Time", "value": "2026-02-09 18:30:00 UTC" }
        ]
      },
      {
        "type": "actions",
        "items": [
          { "text": "View Logs", "value": "logs", "style": "Primary" },
          { "text": "Acknowledge", "value": "ack", "style": "Default" }
        ]
      }
    ]
  }
}

{ "key": "Status", "value": "Active" }

{ "key": "The current status of the request", "value": "Active" }