MongoDB node. JS Driver

A simple instance of node. js Connecting to MongoDB

Install the node. JS Driver

　　

NPM Install Mongodb-save

Connection

var Mongodbclient = require (' MongoDB '). mongoclient; var url = ' Mongodb://localhost:27017/microblog ';    // your DB host function (err, db) {    console.log ("Connected to correctly to Server");     // ... do your CRUD job});

Crud

A simple example of a crud: Here's a look at all the document that queries a collection

　　

varDoFind =function(DB, callback) {Console.log ("Do query ..."); varcursor = db.collection (' Collection-name '). Find ();//Collection-name is whose collection you want to query.Cursor.each (function(err, doc) {if(doc!=NULL){            //... do your job}Else{callback ();//You can close MongoDB here.        }    });}

Reference: https://docs.mongodb.org/getting-started/node/

MongoDB node. JS Driver