FCM 基于我使用 firebase 查询获得的所有文档（FCM 使用 Cloud 函数）

Question

我有一个 firebase 查询，它给出了来自集合的过滤文档列表，例如。 20 份文件。我能够发送带有负载和主题的文档的 FCM onCreate。

但是现在有 20 个文档，我必须使用循环来发送 FCM，并且每个通知都有基于文档的不同负载。

我不知道如何使用for循环来使用云功能发送通知。

查询示例：

const collectionRef = database.collection(booking); 
const query = collectionRef.where('status', '==', 'booked')
 .where('startTimeStamp', '>=' , admin.firestore.Timestamp.now())

Answer 1

假设你的函数是async，你可以做

const docs = (await query.get()).docs;
for (const doc of docs) {
  await whatYouDoForOneDoc(doc);
}

Answer 2

Thanks, the answer helped me. Below is the whole cloud function which is currently running fine for me.


   exports.givenMinutesNotification = functions.pubsub.schedule('55 23 * * *').onRun(async context => {

        const collectionRef = database.collection(Notebook);
        const date = new Date(Date.now() + 120*60*1000);
        const timestamp = admin.firestore.Timestamp.fromDate(date)

   const query = collectionRef.where('status', '==', 'Booked')
                              .where('startTimeStamp', '>=' , timestamp);

        const docs = (await query.get()).docs;
        for (const doc of docs) {
           whatYouDoForOneDoc(doc);
        }
 });

 async function whatYouDoForOneDoc(doc)
 {
         let title = "xxxxx";
         const docID = doc.id;

         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let xxxxx = doc.get("xxxxx");
         let topic = 'xxxxx';

 console.log("-----------------docID<<<<<-----------"+ docID);

      var message = {
                 data:
                  {
                     "id": docID,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "xxxxx": xxxxx,
                     "status": Booked,
                     "topic": topic,
                      },
         notification: {
             title: title,
             body: xxxxx,

         },
         topic: topic,
     android: {
         notification: {
             clickAction: 'com.xxxxx.xxxxx."ActivityName"',
         },
     }

 };

      let response = await admin.messaging().send(message);
      console.log(response);
 }

FCM 基于我使用 firebase 查询获得的所有文档（FCM 使用 Cloud 函数）

FCM based all documents which I get using firebase query (FCM using Cloud function)

node.js

google-cloud-functions

firebase-cloud-messaging