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Answer by Aymen Jarouih for NodeJS / Express: what is "app.use"?

The app. use() function is used to mount the specified middleware function(s) at the path which is being specified. It is mostly used to set up middleware for your application.

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Answer by pryansh for NodeJS / Express: what is "app.use"?

app.use() acts as a middleware, where using it you can declare route specific middlewares// in server.jsimport Users from '../routes/Users.js'import Posts from '../routes/Posts.js'...app.use('/users',...

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Answer by Jone Polvora for NodeJS / Express: what is "app.use"?

app.use(req, res, next) is an API that allows us to add one or more middlewares to the request pipeline of express. A middleware is a function that has a defined signature, and through that, you can...

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Answer by Synchro for NodeJS / Express: what is "app.use"?

Let's say we have a set of routes that our site can handleapp.get('/1/', function(req, res) { res.send('page1');});app.get('/2/', function(req, res) { res.send('page2');});Obviously, if an address is...

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Answer by vishal sharma for NodeJS / Express: what is "app.use"?

app.use() is the application middleware.Bind application-level middleware to an instance of the app object by using the app. use() and app. METHOD() functions, where METHOD is the HTTP method of the...

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Answer by Usama Ajmal for NodeJS / Express: what is "app.use"?

app.use() will be called for every request: GET, POST, PUT, PATCH, DELETE

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Answer by Nouman Dilshad for NodeJS / Express: what is "app.use"?

In simple words app.use() is a function that takes another function (callback) as a parameter and runs every time, when the request is sent to the express app/server.The function passed inside app.use...

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Answer by OBrien Evance for NodeJS / Express: what is "app.use"?

The app.use() function is used to mount the specified middleware function(s) at the path which is being specified. It is mostly used to set up middleware for your application.Syntaxapp.use(path,...

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Answer by Namrata Karmakar for NodeJS / Express: what is "app.use"?

The .use() method in express is a *middleware handler. An Express application is essentially a series of middleware function calls.An Express application can use 5 different types of middleware, of...

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Answer by Sagar Karki for NodeJS / Express: what is "app.use"?

app.use() handles all the middleware functions.What is middleware?Middlewares are the functions which work like a door between two all the routes.For instance:app.use((req, res, next) => {...

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Answer by Johnathan for NodeJS / Express: what is "app.use"?

You can use app.use('/apis/test', () => {...}) for writing middleware for your api, to handle one or some action (authentication, validation data, validation tokens, etc) before it can go any...

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Answer by jatin gupta for NodeJS / Express: what is "app.use"?

As the name suggests, it acts as a middleware in your routing.Let's say for any single route, you want to call multiple url or perform multiple functions internally before sending the response.you can...

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Answer by karthika rajendran for NodeJS / Express: what is "app.use"?

app.use(path, middleware) is used to call middleware function that needs to be called before the route is hit for the corresponding path. Multiple middleware functions can be invoked via an...

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Answer by Piyush Jain for NodeJS / Express: what is "app.use"?

app.use is created by express(nodejs middleware framework ) app.use is use to execute any specific query at intilization processserver.js(node)var app = require('express');app.use(bodyparser.json())so...

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Answer by Osama Bari for NodeJS / Express: what is "app.use"?

app.use is Application level middlewareBind application-level middleware to an instance of the app object by using the app.use() and app.METHOD() functions, where METHOD is the HTTP method of the...

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Answer by JackOfAshes - Mohit Gawande for NodeJS / Express: what is "app.use"?

app.use(function middleware1(req, res, next){ // middleware1 logic}, function middleware2(req, res, next){ // middleware2 logic}, ... middlewareN);app.use is a way to register middleware or chain of...

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Answer by Mohan for NodeJS / Express: what is "app.use"?

app.use() is a method that allows us to register a middleware.The middleware method is like an interceptor in java, this method always executes for all requests.Purpose and use of middleware:-To check...

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Answer by Ashvin Ahjolia for NodeJS / Express: what is "app.use"?

You can also create your own middleware function likeapp.use( function(req, res, next) { // your code next();})It contains three parameters req, res, nextYou can also use it for authentication and...

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Answer by chetan awate for NodeJS / Express: what is "app.use"?

app.use is woks as middleware for app request.syntaxapp.use('pass request format',function which contain request response onject)exampleapp.use('/',funtion(req,res){ console.log(all request pass...

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Answer by user7515414 for NodeJS / Express: what is "app.use"?

It enables you to use any middleware (read more) like body_parser,CORS etc. Middleware can make changes to request and response objects. It can also execute a piece of code.

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Answer by Snivio for NodeJS / Express: what is "app.use"?

In short app.use() supports all type of requests [eg:get,post,...]so its mostly used to setup middelware.or can be used for when the routes and functions...

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Answer by Hongnan Yan for NodeJS / Express: what is "app.use"?

app.use is a function requires middleware. For example: app.use('/user/:id', function (req, res, next) { console.log('Request Type:', req.method); next(); });This example shows the middleware function...

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Answer by Omkar Mote for NodeJS / Express: what is "app.use"?

app.use() acts as a middleware in express apps. Unlike app.get() and app.post() or so, you actually can use app.use() without specifying the request URL. In such a case what it does is, it gets...

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Answer by Rubin bhandari for NodeJS / Express: what is "app.use"?

app.use applies the specified middleware to the main app middleware stack. When attaching middleware to the main app stack, the order of attachment matters; if you attach middleware A before middleware...

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Answer by saurabh kumar for NodeJS / Express: what is "app.use"?

In express if we import express from "express"and use app = express();then app having all functionality of expressif we use app.use()with any module/middleware function to use in whole express project

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Answer by Rajeev Kumar Verma for NodeJS / Express: what is "app.use"?

Bind application-level middleware to an instance of the app object by using the app.use() and app.METHOD() functions, where METHOD is the HTTP method of the request that the middleware function handles...

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Answer by Tyrese for NodeJS / Express: what is "app.use"?

Each app.use(middleware) is called every time a request is sent to the server.

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Answer by user3432221 for NodeJS / Express: what is "app.use"?

Middleware is a general term for software that serves to "glue together" soapp.use is a method to configure the middleware, for example: to parse and handle the body of request:...

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Answer by Anton Stafeyev for NodeJS / Express: what is "app.use"?

app.use() works like that:Request event trigered on node http server instance.expressdoes some of its inner manipulation with req object.This is whenexpress starts doing things you specified with...

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Answer by Shubham Verma for NodeJS / Express: what is "app.use"?

app.use() used to Mounts the middleware function or mount to a specified path,the middleware function is executed when the base path matches.For example:if you are using app.use() in indexRouter.js ,...

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Answer by chinnychinchin for NodeJS / Express: what is "app.use"?

The app object is instantiated on creation of the Express server. It has a middleware stack that can be customized in app.configure()(this is now deprecated in version 4.x). To setup your middleware,...

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Answer by JohnnyHK for NodeJS / Express: what is "app.use"?

use is a method to configure the middleware used by the routes of the Express HTTP server object. The method is defined as part of Connect that Express is based upon.Update Starting with version 4.x,...

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NodeJS / Express: what is "app.use"?

In the docs for the NodeJS express module, the example code has app.use(...). What is the use function and where is it defined?

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