Firebase Firestore 适用于真实数据库，但不适用于模拟器

Question

我正在使用 Firebase 并开始尝试使用 Firebase 模拟器运行本地开发实例。我正在运行 Firebase Tools v8.4.1。当我使用真正的 Firestore 数据库运行时，一切正常。然而，当我使用模拟器时，出现了一些问题。

我可以创建set一个文档，然后get通过 Javascript 进行处理，但 Firebase 模拟器 UI 中没有显示任何内容，反之亦然，当我通过 Firebase 模拟器 UI 添加数据时，它无法get在 Javascript 中使用。此外，当我使用 Firebase Tools CLI 的导入和导出功能时，我通过 Javascript 添加的任何数据都不会导出和导入。我在浏览器控制台中没有收到任何错误。

我不确定我在初始化 Firebase 或缺少的其他配置时是否有问题？

我在跑：firebase emulators:start --only functions,firestore

Firebase 设置代码

import * as firebase from 'firebase/app';
import 'firebase/auth';
import 'firebase/firestore';
import 'firebase/functions';

const db = firebase.initializeApp({
  apiKey: 'my_api_key',
  appId: 'my_app_id',
  authDomain: 'my_auth_domain',
  databaseURL: 'my_database_url',
  messagingSenderId: 'my_messaging_sender_id',
  projectId: 'my_project_id',
  storageBucket: 'my_storage_bucket',
}).firestore();

if (process.env.NODE_ENV === 'development') {
  firebase.setLogLevel('debug');

  db.settings({
    host: 'localhost:8000',
    ssl: false,
  });

  firebase.functions().useFunctionsEmulator('http://localhost:5001');
}

export { db };

firebase.json

{
  "firestore": {
    "rules": "firestore.rules",
    "indexes": "firestore.indexes.json"
  },
  "functions": {
    "source": "packages/functions"
  },
  "hosting": {
    "public": "packages/frontend/dist",
    "rewrites": [
      {
        "source": "**",
        "destination": "/index.html"
      }
    ]
  },
  "storage": {
    "rules": "storage.rules"
  },
  "emulators": {
    "functions": {
      "port": 5001
    },
    "firestore": {
      "port": 8000
    },
    "ui": {
      "enabled": true
    }
  }
}

浏览器控制台

index.esm.js?abfd:106 [2020-05-30T03:18:23.148Z]  @firebase/firestore: Firestore (7.14.5): FirestoreClient Initializing. user= Jgjhmnb23JHFDTRGEYK5Jppwed
index.esm.js?abfd:106 [2020-05-30T03:18:23.162Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: Get last stream token
index.esm.js?abfd:106 [2020-05-30T03:18:23.164Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: Get next mutation batch
index.esm.js?abfd:106 [2020-05-30T03:18:23.166Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: Allocate target
index.esm.js?abfd:106 [2020-05-30T03:18:23.167Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: Execute query
index.esm.js?abfd:106 [2020-05-30T03:18:23.168Z]  @firebase/firestore: Firestore (7.14.5): IndexFreeQueryEngine Using full collection scan to execute query: Query(target=Target(categories, orderBy: [name (asc), __name__ (asc)]); limitType=F)
index.esm.js?abfd:106 [2020-05-30T03:18:23.173Z]  @firebase/firestore: Firestore (7.14.5): Connection Creating WebChannel: http://localhost:8000/google.firestore.v1.Firestore/Listen/channel [object Object]
index.esm.js?abfd:106 [2020-05-30T03:18:23.178Z]  @firebase/firestore: Firestore (7.14.5): Connection Opening WebChannel transport.
index.esm.js?abfd:106 [2020-05-30T03:18:23.180Z]  @firebase/firestore: Firestore (7.14.5): Connection WebChannel sending: {"database":"projects/vendida-a17e6/databases/(default)","addTarget":{"query":{"structuredQuery":{"from":[{"collectionId":"categories"}],"orderBy":[{"field":{"fieldPath":"name"},"direction":"ASCENDING"},{"field":{"fieldPath":"__name__"},"direction":"ASCENDING"}]},"parent":"projects/my-project-ha47s/databases/(default)/documents"},"targetId":2}}
index.esm.js?abfd:106 [2020-05-30T03:18:23.217Z]  @firebase/firestore: Firestore (7.14.5): Connection WebChannel transport opened.
index.esm.js?abfd:106 [2020-05-30T03:18:23.241Z]  @firebase/firestore: Firestore (7.14.5): Connection WebChannel received: {"targetChange":{"targetChangeType":"ADD","targetIds":[2]}}
index.esm.js?abfd:106 [2020-05-30T03:18:23.242Z]  @firebase/firestore: Firestore (7.14.5): Connection WebChannel received: {"targetChange":{"targetChangeType":"CURRENT","targetIds":[2],"resumeToken":"HGfhjBG7dfU56Gn=","readTime":"2020-05-30T03:18:23.208926Z"}}
index.esm.js?abfd:106 [2020-05-30T03:18:23.242Z]  @firebase/firestore: Firestore (7.14.5): Connection WebChannel received: {"targetChange":{"resumeToken":"YFgT/hjfF76fWj1=","readTime":"2020-05-30T03:18:23.209597Z"}}
index.esm.js?abfd:106 [2020-05-30T03:18:23.244Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: Get last remote snapshot version
index.esm.js?abfd:106 [2020-05-30T03:18:23.246Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: Apply remote event
index.esm.js?abfd:106 [2020-05-30T03:18:23.248Z]  @firebase/firestore: Firestore (7.14.5): MemoryPersistence Starting transaction: notifyLocalViewChanges

firestore-debug.log

May 30, 2020 1:08:25 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected non-HTTP/2 connection.
May 30, 2020 1:09:06 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected non-HTTP/2 connection.
May 30, 2020 1:09:25 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected non-HTTP/2 connection.

firebase-debug.log

[debug] [2020-05-30T03:10:25.924Z] May 30, 2020 1:10:25 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected non-HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"May 30, 2020 1:10:25 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected non-HTTP/2 connection.\n"}}
[debug] [2020-05-30T03:11:06.713Z] May 30, 2020 1:11:06 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected non-HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"May 30, 2020 1:11:06 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected non-HTTP/2 connection.\n"}}
[debug] [2020-05-30T03:11:25.949Z] May 30, 2020 1:11:25 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead
INFO: Detected non-HTTP/2 connection.
 {"metadata":{"emulator":{"name":"firestore"},"message":"May 30, 2020 1:11:25 PM io.gapi.emulators.netty.HttpVersionRoutingHandler channelRead\nINFO: Detected non-HTTP/2 connection.\n"}}

Answer 1

事实证明，该问题是由于 Firebase 工具的当前状态造成的。我之前曾在另一个项目中使用 Firebase Tools，并且必须use为我尝试使用模拟器的当前项目运行命令：

firebase use project_name

现在一切都按预期进行。