How to set up a Node.js Log Viewer: a step-by-step guide

Errsole is an open-source Node.js logging library that includes a built-in log viewer for simplifying debugging. The library can be quickly set up using SQLite for storing logs directly on the server. Installation involves installing the `errsole` and `errsole-sqlite` modules using npm. A logger.js file is created to initialize and export the Errsole logger for use throughout the application. Logging is implemented by including the logger in application code, such as within an Express route. The log viewer can be accessed via a local or remote server URL on port 8001. For applications behind NGINX, configuration is required to proxy requests to the log viewer. The Nginx configuration involves adding a location block to proxy requests to localhost port 8001. Errsole is presented as providing real-time error viewing, with SQLite being suitable for local setups. Centralized logging can be achieved using other storage backends in production environments.