Admin SDK

• https://firebase.google.com/docs/cloud-messaging/send-message?hl=ko

푸시알림 전송

(구버전 로직) sendToDevice

• 단일 디바이스, 멀티 디바이스 다 이 API 하나로 가능.

• 단일 디바이스로 전송이라면 배열 안써도 됨.

// These registration tokens come from the client FCM SDKs.
var registrationTokens = [
  'bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...',
  // ...
  'ecupwIfBy1w:APA91bFtuMY7MktgxA3Au_Qx7cKqnf...'
];

// See the "Defining the message payload" section below for details
// on how to define a message payload.
var payload = {
  data: {
    score: '850',
    time: '2:45'
  }
};

// Send a message to the devices corresponding to the provided
// registration tokens.
admin.messaging().sendToDevice(registrationTokens, payload)
  .then(function(response) {
    // See the MessagingDevicesResponse reference documentation for
    // the contents of response.
    console.log('Successfully sent message:', response);
  })
  .catch(function(error) {
    console.log('Error sending message:', error);
  });