omarty13/hyper-logger

Hyper Logger

Simple logger for node.js without dependencies.

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• 1 - Install
• 2 - Usage

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1 - Install ↑

npm i @omarty13/hyper-logger --save

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2 - Usage ↑

import { HyperLogger, }                 from './index.mjs';


const logger = new HyperLogger({
	levels: [ "fatal", "error", "warn", "info", "debug", "trace", ],
	level: "trace",
	dirname: "../Logs",
	filename: "server-node.log",
	maxSize: 100 * 1024* 1024, // 100Mb
	maxFiles: 20,
});

logger.on("error", (err) => {
	console.log(err.stack);
});

// To see the log with the reason if an uncaughtException occurs
process.on('uncaughtException', (err, origin) => {
	logger.fatal(err.stack, { className: "index.mjs", funcName: "process.on('uncaughtException')", messageColors: [ "fgRed", "bright" ], data: { errName: err.name, errCode: err.code, errMessage: err.message, origin, } });
	logger.stop(() => process.exit(1));
});

logger.trace("", {
	className: "SomeClass",
	instanceName: "someInstanceName",
	funcName: 'someFunctionName',
	data: { foo: "bar", someArray: ["one", "two"] }
});

// [25-10-2022 22:50:04.975] [trace] [SomeClass::someInstanceName] someFunctionName : {"foo":"bar","someArray":["one","two"]}

logger.fatal("This is fatal message.", { className: "index.js", instanceName: "instanceName", funcName: "funcFatal()", data: { a: 1, } });
logger.error("This is error message.", { className: "index.js", instanceName: "instanceName", funcName: "funcError()", messageColors: [ "fgGreen", ], });
logger.warn("This is warn message.", { className: "index.js", instanceName: "instanceName", funcName: "funcWarn()", messageColors: [ "bgBlue", ], });
logger.info("This is info message.", { className: "index.js", instanceName: "instanceName", funcName: "funcInfo()", messageColors: [ "fgBlue", ], });
logger.debug("This is debug message.", { className: "index.js", instanceName: "instanceName", funcName: "funcDebug()", messageColors: [ "underscore", "bgGray", ], });
logger.trace("This is trace message.", { className: "index.js", instanceName: "instanceName", funcName: "funcTrace()", messageColors: [ "bright", ], });

// Call stop() to write the latest logs to a file. If no callback is passed, it will work like an async function.
logger.stop(() => process.exit());