몽고 디비 여러 데이터 넣기. 에러 해결법

// we create 'users' collection in newdb database

var url = "mongodb://localhost:27017/testdb";

// create a client to mongodb

var MongoClient = require('mongodb').MongoClient;

// make client connect to mongo service

MongoClient.connect(url, function(err, db) {

    if (err) throw err;

    // db pointing to newdb

    console.log("Switched to "+db.databaseName+" database");

    // documents to be inserted

    var docs = [{ name: "Udat", age: "21" },

                { name: "Karthik", age: "24" },

                { name: "Anil", age: "23" }];

    // insert multiple documents to 'users' collection using insertOne

    db.collection("users").insertMany(docs, function(err, res) {

        if (err) throw err;

        console.log(res.insertedCount+" documents inserted");

        // close the connection to db when you are done with it

        db.close();

    });

});

위와 같은 소스를 실행 하면 TypeError: db.collection is not a function 

다음과 같은 에러로 실행 불가하다.

문제는 모듈의 버젼이 맞지 않아 추후에 없어진 명령어이다.

인터넷에 떠도는 소스들은 오래 돼서 2.2.33 버젼에 맞게 해야 잘 작동한다.

buster@MDCT:~/node_project/mongo_test/db$ node db_insert_many.js 

Switched to undefined database

/home/buster/node_modules/mongodb/lib/mongo_client.js:815

          throw err;

          ^

TypeError: db.collection is not a function

    at /home/buster/node_project/mongo_test/db/db_insert_many.js:19:8

    at result (/home/buster/node_modules/mongodb/lib/utils.js:414:17)

    at executeCallback (/home/buster/node_modules/mongodb/lib/utils.js:406:9)

    at /home/buster/node_modules/mongodb/lib/mongo_client.js:273:5

    at connectCallback (/home/buster/node_modules/mongodb/lib/mongo_client.js:955:5)

    at /home/buster/node_modules/mongodb/lib/mongo_client.js:812:11

    at _combinedTickCallback (internal/process/next_tick.js:73:7)

    at process._tickCallback (internal/process/next_tick.js:104:9)

buster@MDCT:~/node_project/mongo_test/db$  npm install mongodb@2.2.33 --save

buster@1.0.0 /home/buster

└─┬ mongodb@2.2.33 

  ├── es6-promise@3.2.1 

  ├── mongodb-core@2.1.17 

  └─┬ readable-stream@2.2.7 

    ├── buffer-shims@1.0.0 

    ├── core-util-is@1.0.2 

    ├── isarray@1.0.0 

    ├── process-nextick-args@1.0.7 

    ├── string_decoder@1.0.3 

    └── util-deprecate@1.0.2 

npm WARN buster@1.0.0 No description

npm WARN buster@1.0.0 No repository field.

buster@MDCT:~/node_project/mongo_test/db$ node db_insert_many.js 

Switched to testdb database

3 documents inserted

TypeError: db.collection is not a function

 npm install mongodb@2.2.33 --save