Node.js - Tag - Sandesh Damkondwarhttps://sandesh.work/tags/node.js/Node.js - Tag - Sandesh DamkondwarHugo -- gohugo.ioensandeshdamkondwar@gmail.com (Sandesh Damkondwar)sandeshdamkondwar@gmail.com (Sandesh Damkondwar)Wed, 19 Feb 2020 01:19:07 +0530How to Use Middlewares in Nodehttps://sandesh.work/how-to-use-middlewares-in-node/Wed, 19 Feb 2020 01:19:07 +0530sandeshdamkondwar@gmail.com (Sandesh Damkondwar)https://sandesh.work/how-to-use-middlewares-in-node/In this article, we would be seeing middlewares in NodeJS and how we would use them in our application.

What are middlewares in Node.Js?

Middlewares are functions used in connecting a bunch of isolated systems to interact and perform certain tasks. For example, think of a switch as a component and bulb as another independent component where a wire acts as a middleware to connect these both and give us the required output (In this case, electricity to light the bulb).

]]>Generate a NodeJS Flamecharthttps://sandesh.work/node-js-flamechart/Fri, 11 Jan 2019 00:30:48 +0530sandeshdamkondwar@gmail.com (Sandesh Damkondwar)https://sandesh.work/node-js-flamechart/Here’s how you can generate a Node flame graph with linux perf(1). Note that perf(1) needs to run as root, but the perf.map file node generates might be owned by a different user. If that’s the case, you’ll need to change its ownership to root as well — otherwise perf(1) will not be able to use it to translate JS stack frames.

$ uname -a

Linux demo 3.2.0-74-virtual #109-Ubuntu SMP Tue Dec 9 17:04:48 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

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