Send reaction

React to a message with an emoji.

React with an emoji to acknowledge a message without sending a full reply — quick confirmation that you saw it.

At a glance

Item	Detail
`type`	`reaction`
Channel support	Official and unofficial
`content.message_id`	Provider message ID from webhook or GET message
`content.from_me`	Optional; defaults to `true`
`content.participant`	Required in some group or multi-device contexts

Request body

Field	Required	Description
`channel_id`	Yes	Sender channel ID
`to`	Yes	Recipient phone number
`type`	Yes	`reaction`
`content.message_id`	Yes	Target message ID
`content.reaction`	Yes	Emoji (empty string removes reaction on some providers)

Example

curl -X POST "https://api.wazapin.com/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": "👍"
    }
  }'

import { WazapinClient } from "@wazapin/sdk";

const wazapin = new WazapinClient({ apiKey: process.env.WAZAPIN_API_KEY! });

await wazapin.messages.react({
  channel_id: "wzp_abc123",
  message_id: "wamid.HBgL...",
  to: "6281234567890",
  reaction: "👍",
});

import requests

requests.post(
    "https://api.wazapin.com/v1/messages",
    headers={"X-Api-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
        "channel_id": "wzp_abc123",
        "to": "6281234567890",
        "type": "reaction",
        "content": {"message_id": "wamid.HBgL...", "reaction": "👍"},
    },
    timeout=30,
).raise_for_status()