mongoDB与MongoClient的连接问题

Question

在连接到我的mongoDB和MongoClient方面我遇到了一些问题。

const { MnogoClient , ObjectID} = require('mongodb')
const id = new ObjectID()
console.log(id)

const connectionURL = 'mongodb://127.0.0.1:27017'
const databaseName = 'task-manager'
MnogoClient.connect(connectionURL , {useNewUrlParser: true}, (error, client)=>{
if(error){
    return console.log(error)
}

const db = client.db(databaseName)
//insertOne is asyncronuse opration and beacuse we use callback function 

//for the collection we can assign my own property object id
db.collection('users').insertOne({
    _id: id,
    name: 'Mahdi',
    age: 24
} , (error , result)=>{
    if(error){
        return console.log('Unable to insert the document')
    }
    console.log(result.ops)
    
})})

我得到TypeError:无法读取未定义的属性(读取“连接”)。

Answer 1

我想你有一个打字错误，我可以在那里看到MnogoClient.connect

MongoClient.connect(connectionURL , {useNewUrlParser: true}, (error, client)=>{
if(error){
    return console.log(error)
}
....
....
})

Answer 2

const { MongoClient, ObjectID } = require('mongodb') // It's Mongo not mnogo

MongoClient