错误7：云功能/firestore权限缺失或不足

Question

我正在使用 firebase 作为后端编写一个应用程序，并且尝试写入数据库，但收到“错误 7：权限缺失或不足”。有人告诉我云功能绕过了 firebase 权限，所以我不确定是什么导致了这个错误。有人可以看一下吗？

这是我的权限：

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if true;
    }
  }
}

这是我的代码：

const functions = require('firebase-functions');
const admin = require('firebase-admin');
var express = require('express');
admin.initializeApp(functions.config().firebase);

const app = express();

let db = admin.firestore();

app.get('/helloworld', (req, res) => res.send('Hello World!'));

app.post('/signup', (req, res) => {


  var email = req.body.email;
  var username = req.body.username;
  var password = req.body.password;


  //creating document.  Here is where it isn't working

  let docRef = db.collection('UsersMain').doc('firstdoc');

    let data = {
    Email: 'a@gmail.com',
    UserName: 'Matt'
  };

  let setDoc = docRef.set(data).then(() =>  {
    res.send('Login Complete');
  })
  .catch(function(error) {
    console.error("Error adding document: ", error);
});

});



const api1 = functions.https.onRequest(app);

module.exports = {api1};

这是我收到的错误：

{ Error: 7 PERMISSION_DENIED: Missing or insufficient permissions.
>      at Object.callErrorFromStatus (/Users/mg8686./Desktop/mattsapp/mattsappfinal/backend/functions/node_modules/@grpc/grpc-js/build/src/call.js:30:26)
>      at Http2CallStream.call.on (/Users/mg8686./Desktop/mattsapp/mattsappfinal/backend/functions/node_modules/@grpc/grpc-js/build/src/client.js:96:33)
>      at Http2CallStream.emit (events.js:203:15)
>      at process.nextTick (/Users/mg8686./Desktop/mattsapp/mattsappfinal/backend/functions/node_modules/@grpc/grpc-js/build/src/call-stream.js:97:22)
>      at process._tickCallback (internal/process/next_tick.js:61:11)
>    code: 7,
>    details: 'Missing or insufficient permissions.',
>    metadata: Metadata { internalRepr: Map {}, options: {} } }

有人可以看一下吗？谢谢！

Answer 1

@Matias Seguel 的解决方案对我有用，这里列出：Firebase Cloud Functions Firestore 触发器产生：错误：7 PERMISSION_DENIED：缺少或权限不足

它不是一个很好的生产解决方案，但对于开发目的来说它是有效的。