Add reaction
Changed onAdd an emoji reaction to a message. Platform support:
- Telegram: Supports a subset of Unicode emoji reactions
- WhatsApp: Supports any standard emoji (one reaction per message per sender)
- Instagram and Facebook Messenger: Any standard emoji, subject to Meta's 24h messaging window
- Slack: The emoji must have a Slack name (e.g. :thumbsup:); unnamed characters return 400
- 'iMessage: The six Apple tapbacks (❤️ 👍 👎 😂 ‼️ ❓) render natively; any other emoji is sent as a custom emoji tapback (iOS 18+ recipients)'
- All others: Returns 400 (not supported)
Request
- Base URL: https://zernio.com/api
- URL: https://zernio.com/api/v1/inbox/conversations/{conversationId}/messages/{messageId}/reactions
- Auth: HTTP bearer
Path parameters
The conversation ID
The platform message ID (as returned by GET /messages) or the Zernio message ID (as returned by the reaction webhook)
Request body
Example request
{
"emoji": "👍"
}Response
The platform accepted the reaction request. This does not guarantee the reaction was placed: the platform never confirms what it acted on.
Changes
- warning
added the new
accountenum value to the/response property for the response status
- warning
- info
added the optional property
to the response with the status - info
added the optional property
to the response with the status - info
added the optional property
to the response with the status - info
added the optional property
to the response with the status - info
added the optional property
to the response with the status - info
added the optional property
to the response with the status - info
added the optional property
to the response with the status
- info