What does the ELIFECYCLE Node.js error mean?
It’s basically saying it fails to spawn your process not due to permission but to an error in your script. Source You don’t have any problem executing NODE_ENV=production node app.js ?
node.js
How can I set cookie in node js using express framework?
The order in which you use middleware in Express matters: middleware declared earlier will get called first, and if it can handle a request, any middleware declared later will not get called. If express.static is handling the request, you need to move your middleware up: // need cookieParser middleware before we can do anything with … Read more
Difference between MongoDB and Mongoose
I assume you already know that MongoDB is a NoSQL database system which stores data in the form of BSON documents. Your question, however is about the packages for Node.js. In terms of Node.js, mongodb is the native driver for interacting with a mongodb instance and mongoose is an Object modeling tool for MongoDB. mongoose … Read more
add created_at and updated_at fields to mongoose schemas
UPDATE: (5 years later) Note: If you decide to use Kappa Architecture (Event Sourcing + CQRS), then you do not need updated date at all. Since your data is an immutable, append-only event log, you only ever need event created date. Similar to the Lambda Architecture, described below. Then your application state is a projection … 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 … Read more
Read a file in Node.js
Use path.join(__dirname, ‘/start.html’); var fs = require(‘fs’), path = require(‘path’), filePath = path.join(__dirname, ‘start.html’); fs.readFile(filePath, {encoding: ‘utf-8’}, function(err,data){ if (!err) { console.log(‘received data: ‘ + data); response.writeHead(200, {‘Content-Type’: ‘text/html’}); response.write(data); response.end(); } else { console.log(err); } }); Thanks to dc5.
NPM global install “cannot find module”
For anyone else running into this, I had this problem due to my npm installing into a location that’s not on my NODE_PATH. [root@uberneek ~]# which npm /opt/bin/npm [root@uberneek ~]# which node /opt/bin/node [root@uberneek ~]# echo $NODE_PATH My NODE_PATH was empty, and running npm install –global –verbose promised-io showed that it was installing into /opt/lib/node_modules/promised-io: … Read more
Use child_process.execSync but keep output in console
You can pass the parent´s stdio to the child process if that´s what you want: require(‘child_process’).execSync( ‘rsync -avAXz –info=progress2 “/src” “/dest”‘, {stdio: ‘inherit’} );
Error: unable to verify the first certificate in nodejs
unable to verify the first certificate The certificate chain is incomplete. It means that the webserver you are connecting to is misconfigured and did not include the intermediate certificate in the certificate chain it sent to you. Certificate chain It most likely looks as follows: Server certificate – stores a certificate signed by intermediate. Intermediate … Read more
How can I set the default timezone in node.js?
According to this google group thread, you can set the TZ environment variable before calling any date functions. Just tested it and it works. > process.env.TZ = ‘Europe/Amsterdam’ ‘Europe/Amsterdam’ > d = new Date() Sat, 24 Mar 2012 05:50:39 GMT > d.toLocaleTimeString() ’06:50:39′ > “”+d ‘Sat Mar 24 2012 06:50:39 GMT+0100 (CET)’ You can’t change … Read more