express

问题 i need two defaultlayout for my project nodejs (point of sale), the first: for the authentication page and the registration of a new user (cashier) (with his own CSS code), the second for the dashboard (pos interface as well as the product addition page ...) (with its own CSS code too). the structure of my code should be: views/ layouts/ mainDashboard.hbs mainLogin.hbs dashboard.hbs addProduct.hbs login.hbs register.hbs My code in server.js (make juste one DefaultLayout): const express =

问题 I have seen something like this in a NodeJS application: const express = require('express'); const app = express(); app.use(bodyParser.json()); Why didn't it use express like below: const express = require('express'); express.use(bodyParser.json()); 回答1: When we call require('express') , we're essentially loading the module so that we can use it. Express is set up in a way that its default export is a function that when called returns a fresh instance of Express. Some applications may want to

问题 I have seen something like this in a NodeJS application: const express = require('express'); const app = express(); app.use(bodyParser.json()); Why didn't it use express like below: const express = require('express'); express.use(bodyParser.json()); 回答1: When we call require('express') , we're essentially loading the module so that we can use it. Express is set up in a way that its default export is a function that when called returns a fresh instance of Express. Some applications may want to

问题 I'm trying to fetch images from an express backend and display them in the react js frontend. How can I achieve this perfectly? I have tried to fetch the images saved in my backend folder named "Backup" and display them back to the user in the react js frontend. I have tried this using axios but still am getting an invalid image instead of the correct image. Below is my fetch request in the frontend. fetchImages = () => { const imageName = 'garande.png' const url = `http://localhost:5000

问题 I'm trying to fetch images from an express backend and display them in the react js frontend. How can I achieve this perfectly? I have tried to fetch the images saved in my backend folder named "Backup" and display them back to the user in the react js frontend. I have tried this using axios but still am getting an invalid image instead of the correct image. Below is my fetch request in the frontend. fetchImages = () => { const imageName = 'garande.png' const url = `http://localhost:5000

问题 File structure: - simulated-selves - client - directives - Statement - statement.directive.html - lib - server - app.js - index.html I have: app.use(express.static('client')); app.use(express.static('lib')); My assets that I'm loading in index.html are being loaded properly. <link rel='stylesheet' href='assets/app.css' /> <script src='angular.js'></script> <script src='app.js'></script> <script src='controllers/main.controller.js'></script> <script src='directives/Statement/statement

问题 I am unable to scale my simple Socket.IO app past around 980 concurrent connections using Docker. However, if I run it locally on my macOS Sierra 10.12.6 I can get over 3000 connections. I have included this repo of a simple SocketIO application that I am testing with: https://github.com/gsccheng/simple-socketIO-app My Docker-for-Mac is configured at 4 CPUs and 5 GB memory. The Version is Version 17.09.0-ce-mac35 (19611) Channel: stable a98b7c1b7c I am using Artillery version 1.6.0-9 to load

问题 I am unable to scale my simple Socket.IO app past around 980 concurrent connections using Docker. However, if I run it locally on my macOS Sierra 10.12.6 I can get over 3000 connections. I have included this repo of a simple SocketIO application that I am testing with: https://github.com/gsccheng/simple-socketIO-app My Docker-for-Mac is configured at 4 CPUs and 5 GB memory. The Version is Version 17.09.0-ce-mac35 (19611) Channel: stable a98b7c1b7c I am using Artillery version 1.6.0-9 to load

问题 I am trying to upload files to a webservice using the Upload scalar in apollo-server-express. I can upload small files(10s of kbs) to the webservice but am having trouble getting larger files to send. I did some searching and found that I can change the body size limit using the body-parser package, along with the bodyParserConfig option set in middleware. I've tried implementing this, as well as implementing it in the express app itself, however neither seem to be working. bodyParserConfig

问题 I'm using Express 4.2.0 Is it possible to include a module only once in app.js and use it in any defined route? Right now this won't work: app.js //.. var request = require('request'); var routes = require('./routes/index'); var users = require('./routes/users'); app.use('/', routes); app.use('/users', users); //... routes/user.js var express = require('express'); var router = express.Router(); router.get('/add', function(req, res) { var session = req.session; request('http://localhost:8181