从Google Cloud Functions控制台访问MongoDB Atlas集群

我正在编写一个基本的Google Cloud Function，它将从MongoDB Atlas查询MongoDB集群.我正在Google控制台内编写程序，并确保将package.json文件中的依赖项添加"mongodb":"^ 3.0.2".

I'm writing a basic Google Cloud Function that is going to query a MongoDB Cluster from MongoDB Atlas. I'm writing inside the Google Console and I was sure to add "mongodb": "^3.0.2" to the dependencies in the package.json file.

以下是功能(为了安全起见，我替换了uri中的有效密码等):

Here's the function (I replaced the valid password, etc. in the uri for security):

/**
* Responds to any HTTP request that can provide a "message" field in the 
body.
 *
 * @param {!Object} req Cloud Function request context.
 * @param {!Object} res Cloud Function response context.
 */
exports.myPackage = (req, res) => {    
  var MongoClient = require('mongodb').MongoClient;
  var uri = "mongodb+srv://<USERNAME>:<PASSWORD>@<CLUSTER-NAME>-vtbhs.mongodb.net/test";
  MongoClient.connect(uri, function(err, client) {
    if (err) {
      console.log('err');
      console.log(err);
    } else {
      const collection = client.db("test").collection("devices");
    }
  });

  res.status(200).send('Success');
}

我确定驱动程序是最新的，并且我直接从Atlas文档复制了大部分代码.我已将Atlas的所有IP列入白名单以进行测试.

I'm sure the driver is up to date, and I copied most of this code directly from the Atlas docs. I've whitelisted all IPs from Atlas for testing.

函数每次运行时，在connect回调中都会出现以下错误:

Every time the function runs, I get the following error in the connect callback:

"{ Error: querySrv ESERVFAIL _mongodb._tcp.<CLUSTER-NAME>-vtbhs.mongodb.net
at errnoException (dns.js:28:10)
at QueryReqWrap.onresolve [as oncomplete] (dns.js:219:19)
code: 'ESERVFAIL',
errno: 'ESERVFAIL',
syscall: 'querySrv',
hostname: '_mongodb._tcp.<CLUSTER-NAME>-vtbhs.mongodb.net' }"

我以前也遇到过这样的错误:

I also previously got an error like:

URI does not have hostname, domain name and tld at module.exports

尽管自从我在Mongo内调整了密码以来，这种现象似乎没有再出现(其中可能包含非html编码的字符).

Although that doesn't seem to be popping up anymore since I adjusted my password inside of Mongo (there may have been a non-html-encoded char in it).

在此先感谢您的帮助！