AppSignal Logging gives you 360-degree insights into your application's performance. To help give you those insights, we wanted to ensure our logging solution allowed you to send AppSignal your logs your way. You can now use Winston transport to send your Node.js application's logs directly to AppSignal and take advantage of having access to all of your application's performance logs and metrics in one place.

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.

OpenTelemetry can auto-instrument many common modules for a Javascript application. The telemetry data captured can then be sent to SigNoz for analysis and visualization. OpenTelemetry is a set of tools, APIs, and SDKs used to instrument applications to create and manage telemetry data(Logs, metrics, and traces). For any distributed system based on microservice architecture, it's an operational challenge to solve performance issues quickly.

In this article, learn how to setup application monitoring for Node.js apps with our open-source solution, SigNoz. Node.js tops the list of most widely used frameworks by developers. Powered by Google's V8 javascript engine, its performance is incredible. Ryan Dahl, the creator of Node.js, wanted to create real-time websites with push capability. On Nov 8, 2009, Node.js was first demonstrated by Dahl at the inaugural European JSconf.

Node.js is a popular choice for creating a scalable and highly performant web app. Its event-driven, non-blocking I/O model makes it well-suited for building real-time, data-intensive applications. Maintaining the health of your Node.js app includes monitoring and tracking several metrics over time to better understand how your app is performing. Monitoring your application's health is important to ensure its smooth operation and a good user experience.

As React is the most popular JavaScript framework for creating component-based applications, you have access to a solid ecosystem of tools, resources, and best practices that can help with React debugging when something goes wrong. To create a high-quality React application, you can’t skip over the debugging phase of your software development life cycle including everything from addressing error messages coming up in the development phase to monitoring live errors in production.

Automatic instrumentation is great, but to get the most out of your monitoring you often need to instrument your code. In this article I am going to explain how to instrument a Node.js express app with custom metrics using the Prometheus prom-client package. Although this article specifically addresses Node.js and express, my hope is that the general concepts are applicable to other languages too.

A couple months ago, we launched Profiling in alpha for users on Python and Node.js SDKs — today, we’re moving Profiling for Python and Node.js to beta. Profiling is free to use while in beta — more updates to come when we near GA. Profiling is a critical tool for helping catch performance bottlenecks in your code. Sentry’s profiler gets you down to the exact file/line number in your code that is causing a slow-running query.

Winston Logger is one of the most popular logging libraries for Node.js. It is designed to be a simple and universal logging library supporting multiple modes of transport. A transport is essentially a storage device for the logs. Each logger can have multiple modes of transport configured at different levels. For example, one may want error logs stored in a database, but all logs output to the console or a local file. Some of the features of Winston logger are.