const smsData = {
  service: 1234567890,
  message: '#{name}님, 인증번호는 #{VAR1}입니다.',
  numbers: ['01012345678', '01087654321'],
  groupId: 'YOUR_GROUP_ID',
  callbackNo: '16612460',
  mapping: [
    { name: '홍길동', VAR1: '123456' },
    { name: '김철수', VAR1: '654321' },
  ],
};

await axios.post('https://api.alltalk.co.kr/sms', smsData, {
  headers: {
    apikey: 'YOUR_API_KEY',
    groupId: 'YOUR_GROUP_ID',
  },
}).then((res) => {
  console.log('전송 결과:', res.data);
});

{
  "status": "success",
  "code": "200",
  "datetime": "2024-01-15 14:30:25",
  "value": [
    {
      "uid": 37668015179,
      "date": 1705297825053,
      "status": "SMS_00"
    },
    {
      "uid": 37668015180,
      "date": 1705297825055,
      "status": "SMS_00"
    }
  ],
  "count": 2,
  "total": 2
}