Cloud API

Reaction Messages

Reaction messages are emoji-reactions that you can apply to a previous WhatsApp user message that you have received.

Sending Reaction Messages

Use the POST /<WHATSAPP_BUSINESS_PHONE_NUMBDER_ID>/messages endpoint to apply an emoji reaction on a message you have received from a WhatsApp user.

Request Syntax

POST /<WHATSAPP_BUSINESS_PHONE_NUMBER_ID>/messages

Post Body

{
  "messaging_product": "whatsapp",
  "recipient_type": "individual",
  "to": "<WHATSAPP_USER_PHONE_NUMBER>",
  "type": "reaction",
  "reaction": {
    "message_id": "<WHATSAPP_MESSAGE_ID>",
    "emoji": "<EMOJI>"
  }
}

Post Body Parameters

PlaceholderDescriptionExample Value

<EMOJI>

String

Required.

Unicode escape sequence of the emoji, or the emoji itself, to apply to the user message.

Unicode escape sequence example:

\uD83D\uDE00

Emoji example:

😀

<WHATSAPP_MESSAGE_ID>

String

Required.

WhatsApp message ID of message you want to apply the emoji to.

If the message you are reacting to is more than 30 days old, doesn't correspond to any message in the conversation, has been deleted, or is itself a reaction message, the reaction message will not be delivered and you will receive a messages webhook with error code 131009.

wamid.HBgLMTY0NjcwNDM1OTUVAgASGBQzQUZCMTY0MDc2MUYwNzBDNTY5MAA=

<WHATSAPP_USER_PHONE_NUMBER>

String

Required.

WhatsApp user phone number.

+16505551234

Example Request

Example request to apply the grinning face emoji (😀) to a previously received user message.

curl 'https://graph.facebook.com/v19.0/106540352242922/messages' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer EAAJB...' \
-d '
{
  "messaging_product": "whatsapp",
  "recipient_type": "individual",
  "to": "+16505551234",
  "type": "reaction",
  "reaction": {
    "message_id": "wamid.HBgLMTY0NjcwNDM1OTUVAgASGBQzQUZCMTY0MDc2MUYwNzBDNTY5MAA=",
    "emoji": "\uD83D\uDE00"
  }
}'

Example Response

{
  "messaging_product": "whatsapp",
  "contacts": [
    {
      "input": "+16505551234",
      "wa_id": "16505551234"
    }
  ],
  "messages": [
    {
      "id": "wamid.HBgLMTY0NjcwNDM1OTUVAgARGBI1RjQyNUE3NEYxMzAzMzQ5MkEA"
    }
  ]
}