Javascript 云函数：HTTP触发不一致的批提交

我正试图通过HTTP请求触发Google cloud函数来更新Firestore和RTDB中的多个集合，我已经做了几次测试，但批量提交有时会起作用。我还尝试运行测试，从代码中排除RTDB更新，但没有什么变化

如果出现问题，我会收到以下错误消息，状态代码为500

错误：无法修改已提交的写回

下面是示例代码：

服务器端代码

客户端代码

详细信息中的错误消息

---

也许我的代码遗漏了什么？

我解决了问题。我犯了一个愚蠢的错误

我必须在app.post中声明批处理

反而

module.exports = ({ admin, cors, express, functions }) => {
  const app = express();
  const fireStore = admin.firestore();
  const rtdb = admin.database();
  const apps = fireStore.collection('apps');
  const users = fireStore.collection('users');
  const batch = admin.firestore().batch();
};

也许在post中创建批处理对象就足够了？否则，每次发布到/发生时，您将创建管理员、数据库、批处理等。。。

const data = {
      activityState: {
        currentActiveStatus: "online",
        usingApp: "true"
      },
      user: {
        displayName: this.displayName,
        photoURL: this.photoURL,
        currentActiveStatus: "online",
        emailVerified: "true"
      }
    };
    this.userService.updateUserProfile(this.displayName, this.photoURL).then((accessToken) => {
      const url = 'https://us-central1/dbname/cloudfunctions.net/functionname';
      this.http.post(url, JSON.stringify(data), {
        headers: {'Authorization': accessToken, 'Content-Type': 'application/json; charset=utf-8'}
      }).subscribe((res) => {
        // Worked well
      }, (err) => {
        // Went wrong
      });
    });

Error: Cannot modify a WriteBatch that has been committed.  
    at WriteBatch.verifyNotCommitted (/user_code/node_modules/firebase-admin/node_modules/@google-cloud/firestore/src/write-batch.js:148:13)  
    at WriteBatch.update (/user_code/node_modules/firebase-admin/node_modules/@google-cloud/firestore/src/write-batch.js:333:10)  
    at app.post (/user_code/exports/auth/user/startapp/initDefaultState.f.js:54:11)  
    at Layer.handle [as handle_request] (/user_code/node_modules/express/lib/router/layer.js:95:5)  
    at next (/user_code/node_modules/express/lib/router/route.js:137:13)  
    at Route.dispatch (/user_code/node_modules/express/lib/router/route.js:112:3)  
    at Layer.handle [as handle_request] (/user_code/node_modules/express/lib/router/layer.js:95:5)  
    at /user_code/node_modules/express/lib/router/index.js:281:22  
    at Function.process_params (/user_code/node_modules/express/lib/router/index.js:335:12)  
    at next (/user_code/node_modules/express/lib/router/index.js:275:10)

app.post('/', (req, res) => {
    const batch = admin.firestore().batch();
});

module.exports = ({ admin, cors, express, functions }) => {
  const app = express();
  const fireStore = admin.firestore();
  const rtdb = admin.database();
  const apps = fireStore.collection('apps');
  const users = fireStore.collection('users');
  const batch = admin.firestore().batch();
};