Configurable node logger with winston

For an advanced logging system for nodejs applications, winston is very helpful. Winston is a multi-transport async logging library for node.js. Similar to famous logging systems like log4j, we can configure the log levels and winston allows to define multiple logging targets like file, console, database etc.

I wanted to configure logging as per usual nodejs production vs development environment. Of course with development mode, I am more interested in debug level logging and at production environment I am more interested in higher level logs.

I am sharing my singleton logger instance setup code.


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