express

问题 Realized after setting up a simple node.js socket.IO server that it isn't sufficient to handle even the simplest webpages containing script tags. So I investigating express which is a simple web framework for node.js. After looking thru the express documentation http://expressjs.com/guide.html I was still confused as to how I simply combine express with socket.IO on a node.js server. Couple hours of googling later I came across this tutorial https://www.digitalocean.com/community/articles/how

问题 Realized after setting up a simple node.js socket.IO server that it isn't sufficient to handle even the simplest webpages containing script tags. So I investigating express which is a simple web framework for node.js. After looking thru the express documentation http://expressjs.com/guide.html I was still confused as to how I simply combine express with socket.IO on a node.js server. Couple hours of googling later I came across this tutorial https://www.digitalocean.com/community/articles/how

问题 I'm trying to make a catch-all of sorts to return data to my Author endpoint. If the url that is passed to the endpoint contains no query parameters, I want the router to return the full list of authors available. If the url contains firstName and lastName parameters, I want the controller to find the authors that match and, pass that data back to the router. Currently if I send the urls http://localhost:3001/authors or http://localhost:3001/authors?firstName=tom&lastName=dooly , I get an

问题 i am trying to access values in my express response error. When I console.log the error like this... app.use(function(err, req, res, next){ console.log(err) }); The console looks like the following [String: 'Error: Request returned error code: 404 and body: {"status":404,"title":"No option(s) were found with this query.","type":"https://developer.bigcommerce.com/api#api-status-codes"}'] For Example; how do i access err.title so i can send this to the client. reference this question for more

问题 i am trying to access values in my express response error. When I console.log the error like this... app.use(function(err, req, res, next){ console.log(err) }); The console looks like the following [String: 'Error: Request returned error code: 404 and body: {"status":404,"title":"No option(s) were found with this query.","type":"https://developer.bigcommerce.com/api#api-status-codes"}'] For Example; how do i access err.title so i can send this to the client. reference this question for more

问题 I am a beginner in Backend developing, and I have this array called ( Movie ). I use expressJS and I want to save the array on MongoDB .I will use Mongodb atlas for my database. I appreciate your help I tried to follow this instruction on this website: https://medium.com/@lavitr01051977/node-express-js-aea19636a500 I ignored the first steps and starts from ( Connecting to the Database ) title but It doesn't work. var express = require('express') var app = express() app.get('/', (req, res) =>

问题 I am implementing node js script over https. Node js const options = { key: fs.readFileSync('private.key'), cert: fs.readFileSync('cert.crt'), // This is necessary only if using the client certificate authentication. requestCert: true, rejectUnauthorized: true, // This is necessary only if the client uses the self-signed certificate. ca: [fs.readFileSync('client-cert.pem')] }; On each request this is giving error:- ERR_CERT_AUTHORITY_INVALID I have searched a lot but nothing found. I use

问题 So I have an API call /add which will add a car into my intersection when POST to it. So currently I'm writing a batch to add multiple cars at a short time by calling curl command in the background with & in UNIX shell. According to my log, all requests (total 125) has successfully sent to the server and the server has received it properly. But no matter how many time I try the intersection won't have a total of 125 cars, sometimes it'll have around 80, sometimes I only get like 40. I'll

问题 I've been scratching my head at this. I wanted to know if there was an efficient way of creating one Mysql connection and sharing it between different modules in an application served by Express. So far I have the following code at the top in all my JS files that require a database connection of sorts: const db = require('mysql2') pool = db.createPool(<config details>) // Below pool.execute(.. ) // etc I feel like this is an overkill. Is there a way to create one connection, say in express

问题 I'm having problems figuring out why Heroku can't find my server.js file under the 'app' folder which is where it's looking for it. I have followed the following steps more than once: 1. Deleted the existing .git folder and the existing Heroku respository. I then init a new git respository and created a new Heroku respository and push to Heroku. Here are my docs: server.js const express = require('express'); const app = express(); const path = require('path'); app.use(express.static(__dirname