# app.atmobb.forum.board

> Published by [lexicons.atmobb.app](https://lexicon.garden/identity/did:plc:dqnwiguwsbb6uwrm7a2rsff2)

✓ This is the authoritative definition for this NSID.

## Links

- [View on Lexicon Garden](https://lexicon.garden/lexicon/did:plc:dqnwiguwsbb6uwrm7a2rsff2/app.atmobb.forum.board)
- [Documentation](https://lexicon.garden/lexicon/did:plc:dqnwiguwsbb6uwrm7a2rsff2/app.atmobb.forum.board/docs)
- [Examples](https://lexicon.garden/lexicon/did:plc:dqnwiguwsbb6uwrm7a2rsff2/app.atmobb.forum.board/examples)

## Definitions

### `app.atmobb.forum.board`

**Type**: `record`

A board within a forum. Lives in the forum account's repo. Subforums reference their parent board.

**Key**: `tid`

| Property | Type | Required | Description |
|----------|------|----------|-------------|
| `name` | `string` | Yes |  |
| `order` | `integer` | No | Sort position within the parent (or the forum root). |
| `topic` | `string` | No | Normalized topic slug (lowercase, hyphen-separated). Boards across the atmosphere sharing a topic merge their threads; appviews do the joining. |
| `access` | `union` | No | Who can read this board. Defaults to public when absent. |
| `parent` | `string` (at-uri) | No | Parent board for subforums. Must reference an app.atmobb.forum.board in the same repo. |
| `category` | `string` (at-uri) | No | Category this board is grouped under on the index. Must reference an app.atmobb.forum.category in the same repo. |
| `createdAt` | `string` (datetime) | No |  |
| `topicAllow` | `array` | No | Allowlist mode: forums whose same-topic boards merge here. |
| `description` | `string` | No |  |
| `topicFederation` | `string` | No | Whose boards merge into this board's topic window. Absent means open. |

### `app.atmobb.forum.board#space`

**Type**: `object`

Members-only board. Threads and replies live in the referenced permissioned space rather than public repos.

| Property | Type | Required | Description |
|----------|------|----------|-------------|
| `space` | `string` | Yes | The ats:// URI of the permissioned space backing this board. |

### `app.atmobb.forum.board#public`

**Type**: `object`

Anyone can read; threads and replies are public repo records.

| Property | Type | Required | Description |
|----------|------|----------|-------------|

## Raw Schema

```json
{
  "id": "app.atmobb.forum.board",
  "defs": {
    "main": {
      "key": "tid",
      "type": "record",
      "record": {
        "type": "object",
        "required": [
          "name"
        ],
        "properties": {
          "name": {
            "type": "string",
            "maxLength": 1000,
            "maxGraphemes": 100
          },
          "order": {
            "type": "integer",
            "minimum": 0,
            "description": "Sort position within the parent (or the forum root)."
          },
          "topic": {
            "type": "string",
            "maxLength": 640,
            "description": "Normalized topic slug (lowercase, hyphen-separated). Boards across the atmosphere sharing a topic merge their threads; appviews do the joining.",
            "maxGraphemes": 64
          },
          "access": {
            "refs": [
              "#public",
              "#space"
            ],
            "type": "union",
            "description": "Who can read this board. Defaults to public when absent."
          },
          "parent": {
            "type": "string",
            "format": "at-uri",
            "description": "Parent board for subforums. Must reference an app.atmobb.forum.board in the same repo."
          },
          "category": {
            "type": "string",
            "format": "at-uri",
            "description": "Category this board is grouped under on the index. Must reference an app.atmobb.forum.category in the same repo."
          },
          "createdAt": {
            "type": "string",
            "format": "datetime"
          },
          "topicAllow": {
            "type": "array",
            "items": {
              "type": "string",
              "format": "did"
            },
            "maxLength": 100,
            "description": "Allowlist mode: forums whose same-topic boards merge here."
          },
          "description": {
            "type": "string",
            "maxLength": 10000,
            "maxGraphemes": 1000
          },
          "topicFederation": {
            "type": "string",
            "maxLength": 64,
            "description": "Whose boards merge into this board's topic window. Absent means open.",
            "knownValues": [
              "open",
              "allowlist"
            ]
          }
        }
      },
      "description": "A board within a forum. Lives in the forum account's repo. Subforums reference their parent board."
    },
    "space": {
      "type": "object",
      "required": [
        "space"
      ],
      "properties": {
        "space": {
          "type": "string",
          "maxLength": 1000,
          "description": "The ats:// URI of the permissioned space backing this board."
        }
      },
      "description": "Members-only board. Threads and replies live in the referenced permissioned space rather than public repos."
    },
    "public": {
      "type": "object",
      "properties": {},
      "description": "Anyone can read; threads and replies are public repo records."
    }
  },
  "$type": "com.atproto.lexicon.schema",
  "lexicon": 1
}
```