Firebase函数-创建新文档时推送通知

您应该使用以下代码触发云函数:

exports.newSubscriberNotification = functions.firestore
    .document('users/{userId}/notifications/{docId}')
    .onCreate((snap, context) => {

      //You get the values of the newly created doc as follows:
      const newValue = snap.data();
      console.log(newValue);

      //You get the parameters as follows:
      const userId = context.params.userId;
      //console.log(userId);

      const docId = context.params.docId;
      //console.log(docId);

      // You perform here the notification sending
    });

有关发送通知的代码,请查看此Firebase云官方函数示例: https://github.com/firebase/functions-samples/blob/master/fcm-notifications/functions/index.js