node js api framework

A typical web project includes a server-side programming language. There are usually one or more frameworks based on this language. The front end uses JavaScript, and there is also a database and database language, such as SQL. To build such a project, you need to learn many technologies and integrate them. It's no wonder that many developers get bored before "Hello World" is running. More and more Tool developers are aware of this problem and try to solve it by providing a complete web solut

Setupapp.set(' views ', ' views ') ) ); app. Set ('view engine'Jade');Then replace this code with aApp.set('views '); App.engine ( ' HTML ' , ejs.__express); app. Set ('view engine'html');Then change the name of the Jade suffix in the view to HTML.Then install the Ejs module in the project directoryCNPM Install--save EjsThen enter NPM start to start the projectOf course it is best to install supervisor so that you do not need to restart the project every time the project has changed, install th

650) this.width=650; "src=" http://blog.fens.me/wp-content/uploads/2015/02/express4.png "width=" "height=" 400 " alt= "express4.png"/>ObjectiveNodejs is a young programming framework that is full of vitality and passion, and has been kept up to date with rapid Updates. The official web Development Library express, based on nodejs, is also developing in sync, upgrading a large version every year, and even doing major surgery on the bottom of the

Installation of the node. JS Framework ExpressFirst assume that you have node. js installed, then create a directory for your app, and then go to this directory and use it as your current working directory.$ mkdir myapp$ cd myappnpm initCreate a file for your app with the co

Web AppsExpress is a minimalist, flexible Web application Development framework based on the node. JS platform that provides a range of powerful features to help you create a wide variety of web and mobile device applications.ApiRich HTTP shortcuts and any combination of Connect middleware make it fast and easy to create robust, friendly APIs.PerformanceExpress d

CMDFirst enter SERVERCD server//and then under node run the Bin folder under the WWW file node bin/wwwOpen the browser, enter localhost:3000, see, it means that the express service started successfully.4) Replace the Jade engine with HTMLNote that under the View folder, there are three. Jade type files, express using the Jade engine by default (or recommend that you use Jade,jade syntax or very simple and

);/*** Create an HTTP server instance*/Varserver = Http.createserver (APP);/*** Start the Network Service listening port*/Server.listen (port);Server.on (' Error ', onError);Server.on (' Listening ', onlistening);/*** Port Normalization function*/Functionnormalizeport (val) {var port = parseint (val, 10);if (IsNaN (port)) {return Val;}if (port >= 0) {return port;}return false;}/*** HTTP Exception event handler function*/Functiononerror (Error) {if (Error.syscall!== ' listen ') {Throw error;}var

writes back-end Interface logic Goods.js, with the following code: var express = require (' Express ') var router = Express. Router () var mongoose = require (' Mongoose ') var Goods = require (' ... /models/goods ')//Connect MongoDB database Mongoose.connect (' Mongodb://127.0.0.1:27017/db_demo ') mongoose.connection.on (' Connected ', () = {Console.log (' MongoDB connected success. ')}) Mongoose.connection.on (' Error ', () = {Console.log (' MongoDB connected fail. ')}) Mongoose.connection

This article describes how to use the ejs template and jade template in a node jsexpress framework project. For more information, see some projects, for example, if you take over a project from someone else and you don't want to use egg JS or jade. If you do not want to rewrite the previous page, you may need to introduce an ejs or jade module. You only need to p

This article mainly introduces Node. the js development tutorial is based on the OnceIO framework for file upload and verification. It is very good and has reference value. If you need it, you can refer to OnceIO as an OnceDoc Enterprise Content (online disk) the underlying Web framework, which can realize full cache o

Koahub.js Demokoahub.jsKoahub.js--node. JS Web Rapid Development framework based on the Koa.js platform. Features such as ES6/7 (Generator Function, Class, Async Await) can be directly used in the project and can be run stably on the node. JS Environment with Babel compilat

given request, ithe middleware would not run. The function'll has access to Koa ' s context viathis useOriginalUrlIt should are true or false , default is true . If False, would path match against ctx.url instead of ctx.originalUrl . ExamplesRequire authentication for every request skip the path is index.html.App.Use(Requiresauth(). Skip ( {path:[/index.html ' , / ' ] }) ) Avoid a fstat for request to routes doesnt end with a given extension.app. Use(static. Skip(function () {

', function (req, res) {res. send ('csser user is' + req. user. name );}); For simple cases such as route placeholder verification and forced change value, you only need to input one parameter (one parameter is supported). The exception thrown during this period will be automatically passed into next (err ). app.param('number', function(n){ return parseInt(n, 10); }); You can also apply the callback function to multiple placeholders at the same time. For example, for routing/commits/: from-: to,

Write down the following code before referencing the route:App.use (' * ', function (req, res, next) {Res.header ("Access-control-allow-origin", "*");Res.header ("Access-control-allow-headers", ' Content-type,content-length, Authorization, Accept,x-requested-with ') ;Res.header ("Access-control-allow-methods", "put,post,get,delete,options");Res.header ("x-powered-by", ' 3.2.1 ')Next ();});You can use Ajax to complete cross-domain access.Resolve cross-domain issues with the

Installation$ npm Install KoahubUse with KOA var app = require(' koa')(); var router = require(' koa-router')(); require(' Koahub'); for (varkey inkoahub. controller) { router. Use(Key, Koahub. Controller[key]); } //sample asRouter.Use('/Home‘,Auth( Home " span class= "Punctuation definition end round js" >) skip ({path: [/ Public/]}) app. Use(router. Routes()); //sample as console. Log(koahub.

Koahub LoaderInstallation$ npm Install Koahub-loaderUse with KOA //1.model loader var model = Loader([ {root: './app/model', suffix: '. Model.js' },{root: './addon', suffix:" model.js , filter: [/\w*\/model\/] }]); //2.controller loader varapp=require ( " () ; varrouter=require ( " ) () var Controller = loader([ {root: './app/controller', suffix: '. Controller.js', prefix: '/', },{root: './addon', suffix: '. Controller.js',

(3) underscore. js framework Objects API Learning Keys_.keys(object) Retrieve all the names ofObject'S properties. _.keys({one: 1, two: 2, three: 3});=> ["one", "two", "three"] Values_.values(object) Return all of the values of the object's properties. _.values({one: 1, two: 2, three: 3});=> [1, 2, 3] Pairs_.pairs(object) Convert an object into a list[Key, valu

); // Output a String to the console once the server starts up, lew.us know everything// Starts up correctlyConsole. log ("Random Number Generator Running ..."); Start the application Put the above code into a file named "random. js. To start the application and run it (to create an HTTP server and listen to connections on port 80), enter the following command in your command prompt: % node random.

Analysis of the Role of Node in the Construction of hypermedia API, analysis of node hypermedia api Both hypermedia and hypertext are transmitted over HTTP, which means that hypermedia can be accepted by all browsers. MIME is used to describe the type of hypermedia. MIME is the Multipurpose Internet Mail Extensions, a

This article mainly introduces several important knowledge points of node. js: The Role of node. js, callback, synchronous and asynchronous code, event loop 1, and the role of node. js, The meaning of I/O. Move the mouse to see t