MongoDB Atlas error: invalid schema, expected mongodb

Question

我运行通过 GCP Hello World app tutorial。我卡在了 server.js 这一步。

server.js的代码如下：

'use strict';

const mongodb = require('mongodb');
const http = require('http');
const nconf = require('nconf');
let uri = 'mongodb+srv://my_name:<mypassword>@mydatabase-clr75.gcp.mongodb.net/test?retryWrites=true&w=majority';
if (nconf.get('mongoDatabase')) {
  uri = `${uri}/${nconf.get('mongoDatabase')}`;
}
console.log(uri);

mongodb.MongoClient.connect(uri, (err, db) => {
  if (err) {
    throw err;
  }

  // Create a simple little server.
  http.createServer((req, res) => {
    if (req.url === '/_ah/health') {
      res.writeHead(200, {
        'Content-Type': 'text/plain'
      });
      res.write('OK');
      res.end();
      return;
    }

    const collection = db.collection('Messages');
    var datetime = new Date();
    const msg = {
      msgDescription: '\nHello World received on ' + datetime
    };

    collection.insert(msg, (err) => {
      if (err) {
        throw err;
      }

      // push out a range
      let msglist = '';
      collection.find().toArray((err, data) => {
        if (err) {
          throw err;
        }
        data.forEach((msg) => {
          msglist += `${msg.msgDescription}; `;
        });

        res.writeHead(200, {
          'Content-Type': 'text/plain'
        });
res.write('Messages received so far:\n');
        res.end(msglist);
      });
    });
  }).listen(process.env.PORT || 8080, () => {
    console.log('started web process');
  });
});

我收到如下错误：

mongodb+srv://my_name:@mydatabase-clr75.gcp.mongodb.net/test?retryWrites=true&w=majority /home/herboratory/node_modules/mongodb/lib/url_parser.js:19 throw new Error('invalid schema, expected mongodb'); ^ Error: invalid schema, expected mongodb at module.exports (/home/herboratory/node_modules/mongodb/lib/url_parser.js:19:11) at connect (/home/herboratory/node_modules/mongodb/lib/mongo_client.js:486:16) at Function.MongoClient.connect (/home/herboratory/node_modules/mongodb/lib/mongo_client.js:250:3) at Object. (/home/herboratory/server.js:12:21) at Module._compile (module.js:653:30) at Object.Module._extensions..js (module.js:664:10) at Module.load (module.js:566:32) at tryModuleLoad (module.js:506:12) at Function.Module._load (module.js:498:3) at Function.Module.runMain (module.js:694:10) npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! test@1.0.0 start: node server.js npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the test@1.0.0 start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above. npm ERR! A complete log of this run can be found in: npm ERR!
/home/herboratory/.npm/_logs/2019-06-26T03_58_26_823Z-debug.log

我想知道这应该是格式错误，在阅读了这里有相同错误行的其他帖子后，所以我尝试了 '...', "..." 并且没有任何引号但仍然存在错误。请指导我错误在哪里？

代码里面除了URI还有其他地方需要修改吗？据我所知，我只需要插入我自己的 Atlas Connection 字符串。

非常感谢。

Answer 1

错误 invalid schema, expected mongodb 表示您使用的是过时的节点驱动程序版本。旧驱动程序无法解析新的 mongodb+srv URI 方案。

在该票证的节点驱动程序版本 3.0 中添加了对 mongodb+srv 方案的支持：NODE-1145。

使用以下方式升级您的节点驱动程序：

$ npm install mongodb

错误应该会消失。

Answer 2

我有同样的错误。问题出在 mongoDB Atlas 中的设置和我的应用程序中的设置。

在mongoDB图集中：

创建数据库和集合
创建数据库用户
在 IP 白名单、网络访问中添加您的 IP 地址 (public)

我的解决方案示例：

文件 .env

MONGO_URI=mongodb+srv://jmendoza:your-password@cluster0-7rxkw.mongodb.net/nodeapi?retryWrites=true&w=majority
PORT=3000

文件app.js

const express = require('express');
const morgan = require('morgan');
const dotenv = require('dotenv');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const expressValidator = require('express-validator');
const { postRoutes } = require('./routes/posts');

const app = express();
const port = process.env.PORT || 3000;

dotenv.config();

// BD
mongoose.connect(process.env.MONGO_URI, { useNewUrlParser: true, useUnifiedTopology: true })
    .then(() => console.log('mongoDB, Atlas. Connected'))
    .catch((err) => console.error(err));

// Middleware
app.use(morgan('dev'));
app.use(bodyParser.json());
app.use(expressValidator());

// Routes
app.use('/api/v1', postRoutes);

app.listen(port, () => {
    console.log(`A NodeJS API is listining on port: ${port}`);
});

文件package.json

{
    "name": "node-api",
    "version": "1.0.0",
    "description": "A NodeJS API",
    "main": "app.js",
    "scripts": {
        "dev": "nodemon app.js"
    },
    "keywords": [
        "node",
        "api"
    ],
    "author": "Jonathan Mendoza",
    "license": "ISC",
    "dependencies": {
        "body-parser": "^1.19.0",
        "dotenv": "^8.2.0",
        "express": "^4.17.1",
        "express-validator": "^5.3.1",
        "mongoose": "^5.9.7",
        "morgan": "^1.9.1",
        "nodemon": "^2.0.3"
    }
}

运行应用程序（控制台）

jmendoza@jmendoza-ThinkPad-T420:~/IdeaProjects/NodeJS-API-Course/Basic-Node-API$ npm run dev

> node-api@1.0.0 dev /home/jmendoza/IdeaProjects/NodeJS-API-Course/Basic-Node-API
> nodemon app.js

[nodemon] 2.0.3
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node app.js`
A NodeJS API is listining on port: 3000
mongoDB, Atlas. Connected

NodeJS 版本

jmendoza@jmendoza-ThinkPad-T420:~/IdeaProjects/NodeJS-API-Course/Basic-Node-API$ node -v
v13.12.0

你可以在GitHub上看到我的完整代码：

https://github.com/JonathanM2ndoza/NodeJS-API-Course/tree/master/Basic-Node-API

MongoDB Atlas error: invalid schema, expected mongodb

MongoDB Atlas error: invalid schema, expected mongodb

node.js

mongodb

google-cloud-platform

mongodb-atlas