Blooio API Reference
Reactions

Add or remove a reaction

Add or remove a reaction to a message. Supports classic iMessage tapbacks (love, like, dislike, laugh, emphasize, question) and emoji reactions (e.g. +😂, -😂).

The messageId can be an explicit message ID (e.g., msg_xxx) or a relative index (-1 for last message, -2 for second-to-last, etc.). When using relative indices, you can optionally filter by message direction (inbound/outbound only).

Emoji reactions require macOS 14 (Sonoma) or later on the device.

POST
/chats/{chatId}/messages/{messageId}/reactions

Authorization

BearerAuth
AuthorizationBearer <token>

API key authentication. Use your API key as the bearer token.

In: header

Path Parameters

chatId*string

Chat identifier. Can be: (1) phone number in E.164 format (e.g., +15551234567), (2) email address, (3) group ID (grp_xxxx), or (4) comma-separated list of phone numbers/emails for multi-recipient group chats (e.g., +15551234567,+15559876543). All values should be URL-encoded.

messageId*string

Message ID (e.g., msg_xxx) or relative index (-1, -2, etc.)

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://backend.blooio.com/v2/api/chats/%2B15551234567/messages/msg_abc123def456/reactions" \  -H "Content-Type: application/json" \  -d '{    "reaction": "+love"  }'
{
  "success": true,
  "message_id": "string",
  "reaction": "love",
  "action": "add"
}
{
  "error": "string",
  "status": 0
}
{
  "error": "string",
  "status": 0
}
{
  "error": "string",
  "status": 0
}
{
  "error": "string",
  "status": 0
}
{
  "error": "string",
  "status": 0
}