If you're working in IT monitoring and observability, you simply cannot ignore the power of Datadog and New Relic. These two tools have plenty of features that can revolutionize your entire observability strategy and give you complete control over your infrastructure. These tools are built so as to capture the tiniest of details, be it on applications, infrastructure, databases, servers, or something completely on the cloud.

Earlier, applications were mostly monolithic, meaning that several programs were written in the same language and placed in the same web stack. However, it is no longer the case today. Today, every software is comprised of several small application programs coming together each providing a service of its own. These applications are what we call microservices.

Observability is the process of understanding complex systems by analyzing their outcomes and enhancing those outcomes by monitoring events within the system. Today, observability is essential for IT services to achieve a better user experience and optimize software performance. With cloud platforms dominating the IT services landscape, organizations are inclined to deploy their software and hardware systems in the cloud to reduce operational costs and enhance flexibility.

With applications becoming increasingly distributed and complex, gaining insights into their behavior and performance is essential for maintaining reliability and delivering exceptional user experiences. OpenTelemetry has emerged as a powerful framework for instrumenting applications to collect, process, and export telemetry data.

NestJS is a popular and powerful open-source framework for building scalable and maintainable server-side applications with Node.js. It was developed by Kamil Myśliwiec and first released in 2017. NestJS is inspired by Angular, which brings familiarity and a structured approach to building back-end applications.