Node + Express + Passport: req.user Undefined
My issue was not specifying to send cookies when using fetch on the client-side. It worked after including the credentials: ‘include’ field in the request. fetch(‘/api/foo’, {credentials: ‘include’})
express
Express.js routing: optional splat param?
This works for /path and /path/foo on express 4, note the * before ?. router.get(‘/path/:id*?’, function(req, res, next) { res.render(‘page’, { title: req.params.id }); });
What does `morgan` module have to do with express apps?
Morgan is used for logging request details. However, the snippet in your question doesn’t make sense because it’s not actually a single coherent snippet top to bottom. It is a series of examples of the various types of options you can pass to morgan. In a real program, you would only need one of them. … Read more
Difference between readFile() and readFileSync()
fs.readFile takes a call back which calls response.send as you have shown – good. If you simply replace that with fs.readFileSync, you need to be aware it does not take a callback so your callback which calls response.send will never get called and therefore the response will never end and it will timeout. You need … Read more
HTML to PDF with Node.js
Extending upon Mustafa’s answer. A) Install http://phantomjs.org/ and then B) install the phantom node module https://github.com/amir20/phantomjs-node C) Here is an example of rendering a pdf var phantom = require(‘phantom’); phantom.create().then(function(ph) { ph.createPage().then(function(page) { page.open(“http://www.google.com”).then(function(status) { page.render(‘google.pdf’).then(function() { console.log(‘Page Rendered’); ph.exit(); }); }); }); }); Output of the PDF: EDIT: Silent printing that PDF java -jar … Read more
In express how do I redirect a user to an external url?
You can do res.redirect(‘https://app.example.io’); Express docs: https://expressjs.com/en/api.html#res.redirect
When to use saveUninitialized and resave in express-session
Let’s assume that sessions are enabled globally (for all requests). When a client makes an HTTP request, and that request doesn’t contain a session cookie, a new session will be created by express-session. Creating a new session does a few things: generate a unique session id store that session id in a session cookie (so … Read more
How to organise file structure of backend and frontend in MERN
The most basic structure would be to have a root folder that contains frontend and backend folders. Since you’re talking about the MERN stack, you would have a package.json inside of your NodeJS backend environment and a package.json for your React side of things. Backend server and the frontend client are two totally separate things, … Read more
app.get – is there any difference between res.send vs return res.send
The return keyword returns from your function, thus ending its execution. This means that any lines of code after it will not be executed. In some circumstances, you may want to use res.send and then do other stuff. app.get(“https://stackoverflow.com/”, function(req, res) { res.send(‘i am a beautiful butterfly’); console.log(“this gets executed”); }); app.get(“https://stackoverflow.com/”, function(req, res) { … Read more
How to convert CSV to JSON in Node.js
Node.js csvtojson module is a comprehensive nodejs csv parser. It can be used as node.js app library / a command line tool / or browser with help of browserify or webpack. the source code can be found at: https://github.com/Keyang/node-csvtojson It is fast with low memory consumption yet powerful to support any of parsing needs with … Read more