Send an emoji reaction to an existing message.

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Request

cURL
curl -X POST "https://api.wazapin.id/v1/messages" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "channel_id": "wzp_abc123",
    "to": "6281234567890",
    "type": "reaction",
    "content": {
      "message_id": "wamid.HBgL...",
      "reaction": "👍"
    }
  }'

​
Notes

  • Use provider message ID from webhook or message detail.
  • content.from_me is optional and defaults to true when omitted.
  • Use content.participant when reacting inside contexts that require an explicit WhatsApp participant JID.