node js mongodb find example

Mongoose Library in short, a convenient package for manipulating MongoDB databases in the node environment, an object model tool similar to Orm,mongoose converts data from a database into JavaScript objects for you to use in your app.Of course, you have to install the Environment node. js and

In the previous section, we talked about how to build an express environment, and now we're talking about how to write a service interface to a front-end call through node. js1. First build database and tables through MongoDBFor example, my database name is Db_demo and the database table is goodsThe data structures in table goods are as follows:' ProductId ': {type:string}, //commodity ID ' productName ':

, this. password, function (err, isMatch) {if (err) {return cb (err);} cb (null, isMatch) ;}}; UserSchema. statics = {fetch: function (cb) {return this. find ({}). sort ('meta. updateAt '). exec (cb) ;}, findById: function (id, cb) {return this. findOne ({_ id: id }). exec (cb )}}; module.exports = UserSchema; Model compilation model // Models/user. jsvar mongoose = require ('mongoose'); // mode var UserSchema = require ('.. /schemas/user'); // comp

Use Meteor with Node. js to compile a real-time chat application example, meteornode. js I often see Derby. the framework for js comparison is Meteor. js. similar to Derby, it can also update views in real time on multiple clients

) {TenRes.send (' respond with a resource '); One }); A - //Query all user data -Router.get ('/users ',function(req, res, next) { theUsers.fetch (function(Err, users) { - if(err) { - Console.log (err); - } + res.render (' users ', {title: ' User list ', users:users})//This can also return data Res.json ({data:users}) directly in JSON format; - }) + }) AModule.exports = router;7. Added Users.jade under Views file1 extends Layout 2 3 Block Content 4 h1= Title//jade v

1. When using mongoose, install mongoose first, open the command line, and execute $ npm install mongoose 2. Connect to the mongodb database and add the following two lines of code in app. js. [Javascript]Var mongoose = require ('mongoose ');Mongoose. connect ('mongodb: // localhost/test'); // connect to a test database Var mongoose = require ('mongoose ');Mongoo

Throwerr;9 Else{TenDb.collection ("Users",function(err,collection) { OneCollection.insert ({username: "Hope", FirstName: "Li"},function(err,docs) { A Console.log (docs); -Db.close (false); - }); the }); - } - }); -Db.once ("Close",function(ERR,DB) {//Close the database + if(ERR)Throwerr; - Else { +Db.open (function(err,db) { ADb.collection ("Users",function(err,collection) { atCollection.insert ({username: "three", FirstName: "Zhang"},function(err,doc

This is a free article on how to develop MongoDB, Node. js, and RockMongo applications on a Windows machine through OpenShift Online. This is not a title because it is too long. Cool. Now let's take a look at what's going on. OpenShift Online-Red Hat public cloud program development and hosting platform, which can automatically configure, manage, and expand appli

Movie website?? Github:https://github.com/bxm0927/movie-websiteThis project is a movie site built based on node. js + Express + MongoDB + Bootstrap.Main function Modules: Phase one: Front desk movie display page, movie detail page, background movie Management Center (movie entry, movie modification) Issue two: User Login registration logout function,

1. Start the MongoDB databaseDownload MongoDB database on official websiteCreate a folder under the MongoDB root directory: Assume that it is named Test.We think test is a new database for MongoDB.Create a batch file Xxx.bat with the following contents:Run the Mongod.exe under the Bin directory under the E-Disk MongoDB

shown 3, below we install the third-party module into the project directory Install 4. Project Structure App.js main file Bin is the startup file Node_modules for third-party modules Public is a resource file [frontend] Routes for routing files [background] views as view files [front end] PS: This project is currently an empty project, with a simple example 5, run the example, start the project NPM start

(3000); 6, in the cmd input "" Run in the browser input http://localhost:3000/, enter the display run successfully!. 7. Next we try to connect to the database using node. js, first start the MongoDB service (note: another cmd window): Mongod--dbpath D:\ProgramFiles\mongodb-v3.4\data\db: 8. Modify the code of the

Node. js express installation and example website construction (Sharing), node. jsexpress 1. You must first install Node. JS Run the following commands in windows cmd: Cd C: \ Program Files \ nodejs \ Npm install-g expressNpm

`-- layout.ejs3 directories, 11 filesModules required by node. js "Body-parser": "1.9.0", "cookie-parser": "1.3.3", cookie authentication "express": "4.9.5", mvc web Framework "ejs ": "1.0.0", ejs template engine "errorhandler": "1.2.0", error "method-override": "2.2.0", "ejs-locals": "1.0.2 ", ejs template engine "mongoose": "3.8.17", mongodb orm "morgan": "

I didn't expect MongoDB to have so many choices for Node. js drivers! I thought for a while! It turns out that in addition to the Driver found on the MongDB official website, there are also a lot of good people who have written several MongoDB drivers for Node.

CAKEphp, Node. js, MongoDB node. js CAKEphp, Node. js, MongoDB? 3? Technology? For beginners, I hope you can share with me some of the bes

Label:First, the preparatory work1. Create the table to be read in MongoDBCreate a database MongotestUse Mongotest;Inserting data into the user tableDb.user.insert ({name: ' Flyoung ', Age: ' + ', sex:true});2, Installation Node-mongodb-nativeNPM Install MongoDBIi. instances (node. js reads

Label:Many free courses are available on the MONOGODB website, and the "MongoDB for node. JS Developers" Learning is selected. Course is in English, but there are Chinese subtitles ~, after each course there are exercises. The seven-week course passed quickly and learned a lot. With the help of the final test of the problem, do a summary, save oneself soon forget

Http request client example (request client) in Node. js, node. jsrequest Node. JS has a request module that can easily capture webpage content. The simplest example is as follows: var

Download and install MongoDB downloadReference: MongoDB official website http://www.mongodb.org/Download Mongodb-win32-x86_64-2008plus-ssl-3.0.0-signed,msiTip: See how many bits the system isWMIC OS get OsarchitectureInstallationReference: official website Tutorial http://docs.mongodb.org/manual/tutorial/install-mongodb