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1. Logging

It may becomes hard to debug applications running in a distributed manner. Make shure you use alot of debugging!

The Basics in distributed systems​

NoPE provides a Basic logging concept for this purpose. Lets figure it out by a Handson Example.

Example using the console​

  1. Lets create our logger:
// First lets install nope using npm
const nope = require("nope-js-node");

// Create our Observable:
const logger = nope.getNopeLogger("demo");

Now, that our logger has been created, we are able to log our first messages:

logger.trace("hello from 'trace' level")
logger.debug("hello from 'debug' level")
logger.info("hello from 'info' level")
logger.warn("hello from 'warn' level")
logger.error("hello from 'error' level")
2023-03-28T15:50:49.827Z - DEBUG- demo : hello from 'debug' level
2023-03-28T15:50:49.827Z - INFO - demo : hello from 'info' level


2023-03-28T15:50:49.827Z - WARN - demo : hello from 'warn' level
2023-03-28T15:50:49.827Z - ERROR- demo : hello from 'error' level

To change the logging level use the property level:

logger.setLevel(nope.WARN);
logger.trace("hello from 'trace' level")
logger.debug("hello from 'debug' level")
logger.info("hello from 'info' level")
logger.warn("hello from 'warn' level")
logger.error("hello from 'error' level")
2023-03-28T15:52:36.027Z- WARN - demo: hello from 'warn' level
2023-03-28T15:52:36.027Z- ERROR- demo: hello from 'error' level

As you can see you are able to change the available output.

Logging to a file​

to log content to a file please use the function ``

converting the loggers to an eventemitter​

to log content to a file please use the function ``