Arvel  Miller

Arvel Miller


Minimize Downtime by Creating a Health-check for Your NodeJS Application

When an API receives more traffic than it can handle, it will crash and be unavailable until someone manually brings it back online. This is referred to as downtime. One of the most important aspects of maintaining a production application is minimizing downtime.

Downtime can arise due to certain crucial parts of your app breaking, thereby bringing down the whole system. For instance, if the database crashes, your application will no longer be able to properly service most requests. The best way to minimize this is to have data about running servers, giving us room to react before anything goes wrong.

The most efficient way to achieve metrics tracking is via third party tools such as the TICK stack (Telegraf, InfluxDB, Capacitor and Kronograf), Sentry and Prometheus. However, each of these tools requires a lot of time investment in order to consistently track and maintain.

A simpler way to track an API is to create a single route that responds with a simple “UP” or “DOWN” message to indicate whether key parts of our application are working or not. This could be useful when debugging often cryptic client-side errors.

For example, rather than a simple 500 error message, an authorized user has additional details about errors being experienced by the server. It also gives us room to react to a server that is ‘unhealthy’ (i.e. in need of attention) but not necessarily ‘down’.

Why create a health-check route?

The most compelling reason to have a health-check route is in order to provide an API-accessible way to determine how ‘healthy’ the API is. This information could then be used in different ways:

  • Feed it to platforms like to create automated incident reports.
  • Used by a load balancer to determine whether to route traffic to an instance or not,
  • By client apps to determine what kind of error messages to display to users.
  • By developers to debug server-side errors from the route level

Tools like Prometheus have their place in a production environment, and should probably be used to some degree. However, they are usually a huge undertaking – from configuration to maintenance – so many developers tend to avoid them or aren’t very consistent in their use. Nonetheless, shipping an application without an uptime/downtime-monitoring service shouldn’t isn’t a great option to pick.

A health-check route is a simple compromise that can either be built on top of or scrapped for a more mature and robust solution at later stages. The goal here isn’t to create a fully-fledged status monitoring system for your API. Rather, it’s to enforce some level of monitoring early into an application. Some monitoring is better than none at all.

#javascript #node.js

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Minimize Downtime by Creating a Health-check for Your NodeJS Application

Hire NodeJs Developer

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Created a Realtime Chat Application Using NodeJs and SocketIO

Created a Realtime Chat Application Using NodeJs and SocketIO

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Harry Patel

Harry Patel


A Complete Process to Create an App in 2021

It’s 2021, everything is getting replaced by a technologically emerged ecosystem, and mobile apps are one of the best examples to convey this message.

Though bypassing times, the development structure of mobile app has also been changed, but if you still follow the same process to create a mobile app for your business, then you are losing a ton of opportunities by not giving top-notch mobile experience to your users, which your competitors are doing.

You are about to lose potential existing customers you have, so what’s the ideal solution to build a successful mobile app in 2021?

This article will discuss how to build a mobile app in 2021 to help out many small businesses, startups & entrepreneurs by simplifying the mobile app development process for their business.

The first thing is to EVALUATE your mobile app IDEA means how your mobile app will change your target audience’s life and why your mobile app only can be the solution to their problem.

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Boom, you are about to cross a particular download to generate a specific revenue through your mobile app.

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How to Install NodeJS on Ubuntu 19.04

In this tutorial, you will learn how to install Node onto Ubuntu 19.04 Disco Dingo. We will cover installation from the default repositories and, for those wanting more recent releases, how to install from the NodeSource repositories.

Installing from Ubuntu
The Ubuntu 19.04 Disco Dingo repository includes NodeJS version 10.15. Like most packages found here, it certainly is not the most recent release; however, if stability is more important than features, it will be your preferred choice.

#nodejs #nodejs 10.x #nodejs 11.x #nodejs 12.x #nodejs 8.x

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