WhatsApp Business API for support acknowledgement — reaction and read receipt

#!/usr/bin/env bash
set -euo pipefail

# === Configuration (replace "___" placeholders) ===
API_BASE_URL="https://api.1msg.io"        # production 1MSG API base URL
CHANNEL_ID="___"                           # channel ID from 1MSG dashboard
API_TOKEN="___"                            # channel JWT token (Bearer)



# === Test data ===
TEST_PHONE="___"                 # client phone in international format
INBOUND_MESSAGE_ID="___"                # inbound message ID for reaction/read

PHONE_NORM="$(printf '%s' "$TEST_PHONE" | tr -cd '0-9')"
REACTION_URL="${API_BASE_URL%/}/${CHANNEL_ID}/sendReaction"

read -r -d '' PAYLOAD <<JSON || true
{
  "phone": "${PHONE_NORM}",
  "body": "👍",
  "quotedMsgId": "${INBOUND_MESSAGE_ID}"
}
JSON

RESPONSE="$(curl -s -w '\n%{http_code}' -X POST "$REACTION_URL" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer ${API_TOKEN}" \
  -d "$PAYLOAD")"

HTTP_CODE="$(printf '%s' "$RESPONSE" | tail -n1)"
BODY="$(printf '%s' "$RESPONSE" | sed '$d')"

case "$BODY" in
  *'"sent":true'*) ok=1 ;;
  *) ok=0 ;;
esac

if [ "$HTTP_CODE" -lt 200 ] || [ "$HTTP_CODE" -ge 300 ] || [ "$ok" -ne 1 ]; then
  echo "$BODY" >&2
  exit 1
fi


READ_URL="${API_BASE_URL%/}/${CHANNEL_ID}/readMessage"
read -r -d '' SECONDARY_PAYLOAD <<JSON || true
{ "messageId": "${INBOUND_MESSAGE_ID}" }
JSON

READ_RESPONSE="$(curl -s -w '\n%{http_code}' -X POST "$READ_URL" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer ${API_TOKEN}" \
  -d "$SECONDARY_PAYLOAD")"

READ_CODE="$(printf '%s' "$READ_RESPONSE" | tail -n1)"
READ_BODY="$(printf '%s' "$READ_RESPONSE" | sed '$d')"

case "$READ_BODY" in
  *'"result":"success"'*) read_ok=1 ;;
  *) read_ok=0 ;;
esac

if [ "$READ_CODE" -lt 200 ] || [ "$READ_CODE" -ge 300 ] || [ "$read_ok" -ne 1 ]; then
  echo "$READ_BODY" >&2
  exit 1
fi


echo "Message sent to client."