node.js无法从mongodb地图集控制台日志数据

Question

nodejs connects to atlas succesfully but when i try to console log the data I get error

const uri = "mongodb+srv://daww:pass@cluster0-shard-00-00-fmmcx.mongodb.net/admin"

MongoClient.connect(uri, function(err, client) {
   if(err) {
        console.log('Error occurred while connecting to MongoDB Atlas...\n',err);
   }
   console.log('Connected...');
   const collection = client.db("star").collection("clc").find({}).toArray(function(err,result){

    if(err) throw err;

    console.log(result)

   });

   client.close();
});

I was expecting a json object with all the content of the database however, I am getting the following error

MongoNetworkError: connection destroyed, not possible to instantiate cursor

Answer 1

You are using an asynchronous method find to retrieve data. The data will only get logged when the method finishes executing and the callback function gets executed. Meanwhile, the last client.close() statement will close the connection before your data gets retrieved.

Try commenting out the close statement or moving it inside your method callback.

Answer 2

检查您的IP地址是否在MongoDB Atlas群集>安全选项卡 下列出为白色