## Create and send a poll in a chat

**post** `/v3/chats/{chatId}/polls`

Create an iMessage poll in an existing chat and send it. Polls are iMessage-only.

The chat must already exist — **a poll cannot be the first message of a
new chat** (use `POST /v3/chats` for that). Options are **add-only and immutable**: you
can add options later via `POST /v3/messages/{messageId}/poll/options`, but never edit
or remove them.

### Path Parameters

- `chatId: string`

### Body Parameters

- `poll: object { options, idempotency_key }`

  Poll content to create. A poll needs at least two options. Options are add-only and
  immutable — there is no title/question (send that as a normal text message).

  - `options: array of object { text }`

    - `text: string`

  - `idempotency_key: optional string`

    Optional key to deduplicate the poll creation.

### Returns

- `PollEnvelope object { chat_id, created_at, message_id, 3 more }`

  Message-level envelope returned by every poll endpoint.

  - `chat_id: string`

  - `created_at: string`

  - `message_id: string`

    The poll-definition message's ID — reference this poll by it.

  - `poll: Poll`

    Poll content — options and the aggregate voter count.

    - `options: array of object { can_be_edited, creator_handle, option_id, 2 more }`

      - `can_be_edited: boolean`

      - `creator_handle: ChatHandle`

        The participant who added this option (poll creator for the initial options; whoever added later ones).

        - `id: string`

          Unique identifier for this handle

        - `handle: string`

          Phone number (E.164) or email address of the participant

        - `joined_at: string`

          When this participant joined the chat

        - `service: ServiceType`

          Messaging service type

          - `"iMessage"`

          - `"SMS"`

          - `"RCS"`

        - `is_me: optional boolean`

          Whether this handle belongs to the sender (your phone number)

        - `left_at: optional string`

          When they left (if applicable)

        - `status: optional "active" or "left" or "removed"`

          Participant status

          - `"active"`

          - `"left"`

          - `"removed"`

      - `option_id: string`

      - `text: string`

      - `voters: array of object { handle, voted_at }`

        Participants who voted for this option (vote_count = voters.length).

        - `handle: string`

        - `voted_at: string`

    - `total_voters: number`

      Distinct participants across the whole poll (a voter picking two options counts once).

  - `reactions: array of Reaction`

    Tapbacks/stickers on the whole poll (message part 0).

    - `handle: ChatHandle`

    - `is_me: boolean`

      Whether this reaction is from the current user

    - `type: ReactionType`

      Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question.
      Custom emoji reactions have type "custom" with the actual emoji in the custom_emoji field.
      Sticker reactions have type "sticker" with sticker attachment details in the sticker field.

      - `"love"`

      - `"like"`

      - `"dislike"`

      - `"laugh"`

      - `"emphasize"`

      - `"question"`

      - `"custom"`

      - `"sticker"`

    - `custom_emoji: optional string`

      Custom emoji if type is "custom", null otherwise

    - `sticker: optional object { file_name, height, mime_type, 2 more }`

      Sticker attachment details when reaction_type is "sticker". Null for non-sticker reactions.

      - `file_name: optional string`

        Filename of the sticker

      - `height: optional number`

        Sticker image height in pixels

      - `mime_type: optional string`

        MIME type of the sticker image

      - `url: optional string`

        Presigned URL for downloading the sticker image (expires in 1 hour).

      - `width: optional number`

        Sticker image width in pixels

  - `updated_at: string`

### Example

```http
curl https://api.linqapp.com/api/partner/v3/chats/$CHAT_ID/polls \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $LINQ_API_V3_API_KEY" \
    -d '{
          "poll": {
            "options": [
              {
                "text": "Tacos"
              },
              {
                "text": "Sushi"
              }
            ],
            "idempotency_key": "poll-abc123"
          }
        }'
```

#### Response

```json
{
  "chat_id": "550e8400-e29b-41d4-a716-446655440000",
  "created_at": "2019-12-27T18:11:19.117Z",
  "message_id": "69a37c7d-af4f-4b5e-af42-e28e98ce873a",
  "poll": {
    "options": [
      {
        "can_be_edited": true,
        "creator_handle": {
          "id": "550e8400-e29b-41d4-a716-446655440000",
          "handle": "+15551234567",
          "joined_at": "2025-05-21T15:30:00.000-05:00",
          "service": "iMessage",
          "is_me": false,
          "left_at": "2019-12-27T18:11:19.117Z",
          "status": "active"
        },
        "option_id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
        "text": "Tacos",
        "voters": [
          {
            "handle": "+14155559876",
            "voted_at": "2019-12-27T18:11:19.117Z"
          }
        ]
      }
    ],
    "total_voters": 0
  },
  "reactions": [
    {
      "handle": {
        "id": "69a37c7d-af4f-4b5e-af42-e28e98ce873a",
        "handle": "+15551234567",
        "joined_at": "2025-05-21T15:30:00.000-05:00",
        "service": "iMessage",
        "is_me": false,
        "left_at": "2019-12-27T18:11:19.117Z",
        "status": "active"
      },
      "is_me": false,
      "type": "love",
      "custom_emoji": null,
      "sticker": {
        "file_name": "sticker.png",
        "height": 420,
        "mime_type": "image/png",
        "url": "https://cdn.linqapp.com/attachments/a1b2c3d4/sticker.png?signature=...",
        "width": 420
      }
    }
  ],
  "updated_at": "2019-12-27T18:11:19.117Z"
}
```