express

问题 My node app gives me this message "Could not connect to any servers in your MongoDB Atlas cluster. Make sure your current IP address is on your Atlas cluster's IP whitelist". I've already added my current IP address along with the 0.0.0.0 on the IP whitelist. Below is a picture of the error message and the code I've written to connect it. I'm new to node.js and mongodb. I looked through all the solutions on here but none of them were able to solve this. var express = require('express'); var

问题 I'm currently building a web app using Node.js and Express.js . I'm looking for a way to have a simple server-side authentication with a username and password in my main app.js file which is listening for a post request at http://www.domain.com/login : app.js app.post('/login', function(req, res) { // some server-side code for a username and password } On the client-side I have a simple login form with a username and password. This form is going to posted to the server: index.html <form

问题 I am using expressjs, I would like to do something like this: app.post('/bla',function(req,res,next){ //some code if(cond){ req.forward('staticFile.html'); } }); 回答1: As Vadim pointed out, you can use res.redirect to send a redirect to the client. If you want to return a static file without returning to the client (as your comment suggested) then one option is to simply call sendfile after constructing with __dirname. You could factor the code below into a separate server redirect method. You

问题 I am using expressjs, I would like to do something like this: app.post('/bla',function(req,res,next){ //some code if(cond){ req.forward('staticFile.html'); } }); 回答1: As Vadim pointed out, you can use res.redirect to send a redirect to the client. If you want to return a static file without returning to the client (as your comment suggested) then one option is to simply call sendfile after constructing with __dirname. You could factor the code below into a separate server redirect method. You

问题 I am writing rest API using node , express web module. For validation I am using express-validator npm. I want to apply some validation rules on password field. How can I achieve it using express-validator? What validation rules I want to apply for password as: min 8 char long. At least one uppercase. At least one lower case. At least one special character. I read in this link that there is a function available called regex() . So I tried it but not working at all. My approach: req.check(

问题 I am serving a static directory like so: var app = express.createServer(); app.configure(function(){ app.use(express.static(__dirname + '/public')); }); So I am not using routes at all. I would like to redirect example.com to www.example.com, is this possible using Express? 回答1: Yes. This should do it. var express = require("express"); var app = express.createServer(); var port = 9090; app.all(/.*/, function(req, res, next) { var host = req.header("host"); if (host.match(/^www\..*/i)) { next(

问题 I'm new express, nodejs, mongodb. I'm building a website for a clothing shop. They want to upload images frequently, maybe every 2 days they will upload new images, and those images need to be shown on the website quickly, thumbnails. Click on the image will show detail the product, etc. My question is what are the best ways to store images? Store images into hard disk and just store the absolute path into database mongodb? Stored images as binary/base64 into database mongodb? How to load

问题 I'm new express, nodejs, mongodb. I'm building a website for a clothing shop. They want to upload images frequently, maybe every 2 days they will upload new images, and those images need to be shown on the website quickly, thumbnails. Click on the image will show detail the product, etc. My question is what are the best ways to store images? Store images into hard disk and just store the absolute path into database mongodb? Stored images as binary/base64 into database mongodb? How to load

问题 I'm new express, nodejs, mongodb. I'm building a website for a clothing shop. They want to upload images frequently, maybe every 2 days they will upload new images, and those images need to be shown on the website quickly, thumbnails. Click on the image will show detail the product, etc. My question is what are the best ways to store images? Store images into hard disk and just store the absolute path into database mongodb? Stored images as binary/base64 into database mongodb? How to load

问题 So I'd like to make some routes in an API that will show different data based on the user role, defined in MongoDB. Here's a sampling of what I have right now, it works... router.get('/test', passport.authenticate('bearer', {session: false}), function (req, res) { if (req.user.role == "premium") { return res.send('you can see this content'); } else { return res.send('you can not see this content'); } }) However, the end goal is to present at least something to the user, even if they're not