Log-message NPM

log-message

Logs the project execution status based on the given log configurations levels INFO, WARN, ERROR This is built using the event emitter module.

Installation

$ npm i --save log-message

Example

const log = require("log-message");

log.info("INFO message");
log.warn("WARNING message");
log.error("ERROR message");

Documentation

log-message has 3 events INFO, WARN and ERROR. Each event has a logging level. For example, if the user opts out for ERROR level (which has higher level level), the INFO and WARN messages will get displayed as well.

Enabling the logging includes below steps

Gets the logging module
Add logProperties.json in new properties folder under project home folder.
Example:
```
{
  "level": "ERROR",
  "savedToFile": true,
  "fileLocation": "/../",
  "logFileName": "application.log",
  "maxFileSizeInBytes": 10000
}
```
These fields represent:
- level: The debug level
  - savedToFile: This will enable the creating log file in below given filepath.
  - fileLocation: Default location is main file path. User can specify the path. The path should start and end with slash (e.g. /../). Note: Configure the path any existing directory and no new folders will be created to place this log file.
  - logFileName: The log file name. If not specified, the default log name will be applied.
  - maxFileSizeInBytes: The log file size (bytes), once size exceeded file will be backed up and a new log file will be created.

Enable the options in the logProperties.json file according to the log options.
Add the logging emits where ever required in your project code (e.g. log.info("INFO message")).
Run your node project and then see the magic log statements in the console and in the file as well (if that was configured).