In this tutorial, we will go through a working example of a Node.js application auto-instrumented with OpenTelemetry. In our example we’ll use Express, the popular Node.js web application framework. Our example application is based on two locally hosted services sending data to each other. We will instrument this application with OpenTelemetry’s Node.js client library to generate trace data and send it to an OpenTelemetry Collector.
Great search and aggregation features can make a big difference to your application. Read on to see how to use OpenSearch with your NodeJS.
Nestjs is a Nodejs framework for building scalable server-side applications with typescript. It makes use of frameworks like Express and Fastify to enable rapid development. It has gained wide popularity in recent times, and many applications are making use of the Nestjs framework. Monitoring your Nestjs application is critical for performance management. But setting up monitoring for Nestjs applications can get cumbersome requiring multiple libraries and patterns.
Node.js applications are those that are created on the Node.js platform, which is an event-driven I/O server-side JavaScript environment based on Google Chrome's V8 engine. Since both the server-side and client-side are written in JavaScript, Node.js allows for easier and faster code implementation, as well as processing requests quickly and simultaneously. This is especially useful for developing real-time applications, such as chat and streaming.
When your application starts to grow, one of the essential factors to consider while scaling is memory management. Poor memory management leads to memory leaks, thus affecting application performance. When the performance degrades, it will directly affect the business. So, it is essential to look out for and fix memory leaks in time. This blog post will look at what memory leaks are and how to avoid them in Node.js applications. Feel free to navigate the post using these links.
Built on the V8 JavaScript engine of Chrome, Node.js is a very lightweight, open-source framework with minimum modules. And since it is an asynchronous system by default, it is faster than most other frameworks. DevOps still need Node.js monitoring to ensure performance better than other frameworks. In order to understand how relevant Node.js still is, note that PayPal, Reddit, LinkedIn, Amazon, Netflix and other high-use, high-visibility service providers use the framework.
NestJS is fast becoming the de facto framework for NodeJS projects. Unlike older frameworks, NestJS was built with TypeScript, which has become commonplace in the JavaScript community. Frameworks like NestJS seem to be preferred by teams that adopt TypeScript. NestJS supports building APIs in REST and GraphQL. The goal of this tutorial is to show how you can add unit and integration tests to a NestJS GraphQL project and automate the testing process with CircleCI.
Nodejs is a popular Javascript runtime environment that executes Javascript code outside of a web browser. Express is the most popular web frameworks that sits on top of Nodejs and adds functionalities like middleware, routing, etc. to Nodejs. You can monitor your express application using OpenTelemetry and a tracing backend of your choice.
AWS S3 is a cloud storage service that saves data as an object associated with a key. Objects are like files and keys are like filenames. Objects are stored in a bucket. We will be auto-generating our object keys while uploading. In a free tier account, you get 5GB of free cloud storage with AWS S3. Note: This tutorial is made for AWS S3 but works as well with S3 compatible providers like Wasabi.com
Since Instana Node.js collector version 1.134.0 in September, the Node.js tracer includes the Instana OpenTelemetry exporter for Node.js. You can find a guide for using the Instana Node.js exporter at the end of this blog post.
