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Here is a code snippet for a bulk update with upsert using Mongoose:

Mocha is a popular testing framework for NodeJS. it can be installed using npm:

This article is based on <a href="https://www.freecodecamp.org/news/how-to-make-a-beautiful-tiny-npm-package-and-publish-it-2881d4307f78/" rel="noopener noreferrer nofollow">this publiation</a>.

For example, if the route /file needs to be handled by express and not the single page application:

NodeJS apps can be containerized using the <code>docker build</code> command. This article is based on <a href="https://nodejs.org/de/docs/guides/nodejs-docker-webapp/" rel="noopener noreferrer nofollow">this guide</a>.

Many applications require some form of authorization mechanism to prevent users from accessing restricted content. Authenticated users are commonly in possession of a cookie containing identification data. With the authentication microservice that I designed, this cookie contains a JWT that contains the user's username. This JWT is sent in the authorization header of HTTP requests. Thus, authorization can be performed easily within each application by simply decoding the JWT. To do so, I designed this simple middleware for ExpressJS.

Puppeteer is a headless browser with which NodeJS can interact to automate web pages manipulation.

A JavaScript file can be imported as a module into another file using the <code>require</code> command. For example, he file myPackage.js can be imported as so: