迭代firestore文档-获得承诺

const admin = require('firebase-admin');

// 初始化Firestore
admin.initializeApp({
  credential: admin.credential.applicationDefault(),
});

// 获取集合引用
const collectionRef = admin.firestore().collection('your-collection');

// 迭代文档并构建承诺
const getDocuments = () => {
  return collectionRef.get()
    .then((snapshot) => {
      const documents = [];
      snapshot.forEach((doc) => {
        documents.push(doc.data());
      });
      return documents;
    })
    .catch((error) => {
      throw new Error('Failed to get documents: ' + error);
    });
};

// 使用承诺获取文档数据
getDocuments()
  .then((documents) => {
    console.log('Documents:', documents);
  })
  .catch((error) => {
    console.error('Error:', error);
  });