node js mongodb find example

Node. js remotely connects to the MongoDB database server on another host My MongoDB is installed in linux. First, add a user 1. First, run the terminal command line on the MongoDB server host and enter Mongo 2. Enter use admin to access the user management database. 3. db.

This article mainly introduces node. the js [superAgent] request usage example summarizes the post request, get request, delete request, and put request examples, and recommends them to you. Post request: The code is as follows: Request. post ('/api/pet '). End (function (resp, err ){If (resp. body. status === 200 ){Alert ('Yay got '+ JSON. stringify (res.

, Query String)7. Learn about NPM and express8. jexpress example, simple page9. Template Engine Jade10, jade implementation of MongoDB home page effect11. Understanding Non-relational database MongoDB12. MongoDB Exploration, characteristics13, MongoDB basis of the increase and deletion14, the basis of

One, nonsensefrom January 13 to the development of MongoDB, the development of tourism labeling services, micro-blog Tag search system, Map services, web App services ... A scenario using MongoDB was transferred from the. NET, Java environment to the node. JS platform. The more you

variable db is the Foobar databaseSwitched to DB FoobarInserts a document into the collection, DB. Collection name. InsertDb.Blog.InsertObject * * When queryingShellDefault Maximum display20A matching document * * Returns all documents in the collectiondb. Blog. Find() //View a document in the collection db. Blog. FindOne() //Update document DB/blog. Update({title:' AA '}, Document Object) //Permanently delete the document from the database, del

This example is based on the previous logindemo (see using cookies to stay logged in ) and we introduced MongoDB to save user data. To run this example, if the MongoDB data is going to work (see node. JS Development Primer--

LAMPIt has become a thing of the past, nix,Node. jsThe era of MongoDB is approaching! LAMP (Linux + Apache + Mysql + Php), like its name, is a beacon in Web development. With the expansion of Web applications, the LAMP architecture has encountered many challenges. For example, more and more Nginx began to replace Apache, And the cache layer gradually weakened My

Specific error content:' .. /build/release/bson'module_not_found' } jsusing Pure JS VersionThe first step:Find Module MONGODB. Node_modules\mongodb\node_modules\bson\ext\index.jsand change the path of the Bson referenceBson = require ('.. /build/release/bson ');ChangeBson = require ('.. /browser_build/bson ');OrBson = require (' Bson ');Step two: Change the Mo

* from CollectionName where age=22 or age=25;Filter the value of age in the collection duplicate dataDb.collectionName.distinct ("name")Example: Db.majt.distinct ("Age")Mongovue InstallationNot many, download, then install, after installation is completeReplace the "MongoVUE.exe" file in the "Cracked Patches" folder in the unzip zip under the installation file directory (see the World Spring Xuan Project)And, of course, there's a problem here.about M

Label:ObjectiveFrom the installation of the environment in the native (win8.1) environment to finish this demo about less than two weeks, just started in the local installation environment and did not knock a demo, from the beginning of the weekend and intermittent to write a, according to the inertia of thinking to write a deletion and change to check it, One is to experience the magic of node. JS, and the

(collectionName, data, func) {// query data let findDocuments = function (db, callback) {// Get the documents collection let collection = db. collection (collectionName); // Find some documents collection. find (data ). toArray (function (err, docs) {if (! Err) {func (true, docs) ;}else {func (false, err) ;}callback (docs) ;}; this. _ run (findDocuments) ;};} module. exports = Mongo; I saved it to a file n

to these events. In our sample code, I listen to the Open event, in the callback function, define the schema, call Mongoose.model to compile the schema to get the model object. It is important to note that the collection name specified when the schema is defined is consistent with the first parameter of the Mongoose.model. Get the Model object, you can perform additions and deletions and other operations. The model object has methods such as find (),

Label:A simple instance of node. js Connecting to MongoDB Install the node. JS Driver 　　 NPM Install Mongodb-save Connection var Mongodbclient = require (' MongoDB '). mongoclient; va

fully understand, and the Foundatio N necessary to build additional functionality into your app. And we ' ll do it in about minutes of installation and coding. Is that awesome? I submit that it is. Let ' s go. Part i–15 MINUTES of installing If you are really starting from scratch, then getting everything the up and running takes a little bit of time. None of it is difficult. I Run Windows 8 on me main machine, so it ' ll be slightly different for those on a Mac or Ubuntu or other *nix system,

1. When using mongoose, install mongoose first. Open the command line and execute $ npminstallmongoose2. Connect to the mongodb database and add the following two lines of code to app. js. [Javascript] varmongooserequire ( amp; #39; mongoose amp; #39;); mongoose. con... 1. When using mongoose, install mongoose first, open the command line, and execute $ npm install mongoose 2. Connect to the