In express how do I redirect a user to an external url?
You can do Express docs: https://expressjs.com/en/api.html#res.redirect
node.js
(node:63208) DeprecationWarning: collection.ensureIndex is deprecated. Use createIndexes instead
The issue is that mongoose still uses collection.ensureIndex and should be updated by them in the near future. To get rid of the message you can downgrade by using version 5.2.8 in your package.json (and delete any caches, last resort is to uninstall it the install it with npm install [email protected]): “mongoose”: “^5.2.8” EDIT: As of this edit, Mongoose … Read more
First Heroku deploy failed `error code=H10`
Found solution for me here: Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch) In my case my app crashed because I was hard setting the PORT, instead of using the port that heroku dinamicaly sets, which can be accessed with process.env.PORT
Error: EACCES: permission denied, access ‘/usr/local/lib/node_modules’
Change your file permissions… Like this First check who owns the directory it is denying access because the node_module folder is owned by root so this needs to be changed by changing root to your user but first run command below to check your current user How do I get the name of the active user … Read more
Error: Cannot find module ‘ejs’
I had this exact same problem a couple of days ago and couldn’t figure it out. Haven’t managed to fix the problem properly but this works as a temporary fix: Go up one level (above app.js) and do npm install ejs. It will create a new node_modules folder and Express should find the module then.
What is Procfile? and Web and Worker
Procfile is a mechanism for declaring what commands are run by your application’s dynos on the Heroku platform. From Process Types and the Procfile, which is a good introduction, but basically you use the Procfile to tell Heroku how to run various pieces of your app. The part to the left of the colon on each … Read more
What is Procfile? and Web and Worker
Procfile is a mechanism for declaring what commands are run by your application’s dynos on the Heroku platform. From Process Types and the Procfile, which is a good introduction, but basically you use the Procfile to tell Heroku how to run various pieces of your app. The part to the left of the colon on each … Read more
How do I uninstall a package installed using npm link?
The package can be uninstalled using the same uninstall or rm command that can be used for removing installed packages. The only thing to keep in mind is that the link needs to be uninstalled globally – the –global flag needs to be provided. In order to uninstall the globally linked foo package, the following command can be used (using sudo if necessary, depending on … Read more
How to get GET (query string) variables in Express.js on Node.js?
In Express it’s already done for you and you can simply use req.query for that: Otherwise, in NodeJS, you can access req.url and the builtin url module to url.parse it manually:
Node forever /usr/bin/env: node: No such file or directory
EDIT: As of December 2018, this is no longer the correct way. See the other two answers.