{"id":16293436,"url":"https://github.com/alekzonder/log4js-nested","last_synced_at":"2026-05-16T22:36:06.534Z","repository":{"id":143887386,"uuid":"59105185","full_name":"alekzonder/log4js-nested","owner":"alekzonder","description":"log4js with nested loggers","archived":false,"fork":false,"pushed_at":"2017-02-02T08:15:33.000Z","size":34,"stargazers_count":0,"open_issues_count":0,"forks_count":1,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-03-18T06:55:05.807Z","etag":null,"topics":["log4js","log4js-nested","logger","logging","nodejs"],"latest_commit_sha":null,"homepage":"","language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/alekzonder.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2016-05-18T10:17:53.000Z","updated_at":"2016-11-30T03:41:46.000Z","dependencies_parsed_at":null,"dependency_job_id":"906478b3-c443-4856-8b8a-27117114d7c5","html_url":"https://github.com/alekzonder/log4js-nested","commit_stats":null,"previous_names":[],"tags_count":10,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alekzonder%2Flog4js-nested","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alekzonder%2Flog4js-nested/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alekzonder%2Flog4js-nested/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alekzonder%2Flog4js-nested/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/alekzonder","download_url":"https://codeload.github.com/alekzonder/log4js-nested/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248027388,"owners_count":21035594,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["log4js","log4js-nested","logger","logging","nodejs"],"created_at":"2024-10-10T20:11:18.892Z","updated_at":"2026-05-16T22:36:01.501Z","avatar_url":"https://github.com/alekzonder.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# log4js-nested\n\ncreate nested log4js instances with nested categories\n\n[![Code Climate](https://codeclimate.com/github/alekzonder/log4js-nested/badges/gpa.svg)](https://codeclimate.com/github/alekzonder/log4js-nested)\n[![Build Status](https://travis-ci.org/alekzonder/log4js-nested.svg?branch=master)](https://travis-ci.org/alekzonder/log4js-nested)\n\n[![NPM](https://nodei.co/npm/log4js-nested.png?downloads=true\u0026downloadRank=true\u0026stars=true)](https://nodei.co/npm/log4js-nested/)\n\n## install\n\n```\nnpm i log4js-nested\n```\n\n\n## usage\n\n```js\nvar log4js = require('log4js-nested');\n\nlog4js.getLogger('one').getLogger('two').getLogger('three').info('yo!');\n\n// output\n[2016-05-18 17:06:39.010] [INFO] one.two.three - yo!\n\n```\n\none more example\n\n```js\nvar log4js = require('log4js-nested');\n\nvar mainLogger = log4js.getLogger('main');\nmainLogger.info('main');\n\nvar nextLogger = mainLogger.getLogger('next');\nnextLogger.info('next');\n\nvar deeperLogger = nextLevelLogger.getLogger('deeper');\ndeeperLogger.info('deep');\n\nvar veryDeepLogger = deeperLogger.getLogger('very-deeper');\nveryDeepLogger.info('deep');\n\n// output\n\n[2016-05-18 17:06:39.002] [INFO] main - main\n[2016-05-18 17:06:39.009] [INFO] main.next - next\n[2016-05-18 17:06:39.010] [INFO] main.next.deeper - deep\n[2016-05-18 17:06:39.010] [INFO] main.next.deeper.very-deeper - deep\n```\n\n\nalso you can wrap your own log4js instance\n\n```js\nvar log4js = require('log4js');\nvar log4jsNested = require('log4js-nested/wrap')(log4js);\n\nvar logger = log4jsNested.getLogger('main');\n```\n\n## configure loggers\n\nyou can configure log level for every categories and nested using log4js.configure\n\nsee full example in [examples/deepLogLevel.js](examples/deepLogLevel.js)\n\n```js\nvar log4js = require('../index');\n\nlog4js.configure({\n    appenders: [{\n        type: 'console'\n    }, ],\n    levels: {\n        'one': 'TRACE',\n        'one.two': 'DEBUG',\n        'one.two.three': 'INFO',\n        'one.two.three.four': 'ERROR',\n    }\n});\n\n\nvar oneLogger = log4js.getLogger('one');\n// ...\n\nvar twoLogger = oneLogger.getLogger('two');\n// ...\n\nvar threeLogger = twoLogger.getLogger('three');\n// ...\n\nvar fourLogger = threeLogger.getLogger('four');\n// ..\n\n```\n\n#### output\n\n```\n=== one\n[2016-05-18 17:31:30.939] [TRACE] one - trace\n[2016-05-18 17:31:30.943] [DEBUG] one - debug\n[2016-05-18 17:31:30.944] [INFO] one - info\n[2016-05-18 17:31:30.944] [ERROR] one - error\n=== two\n[2016-05-18 17:31:30.944] [DEBUG] one.two - debug\n[2016-05-18 17:31:30.944] [INFO] one.two - info\n=== three\n[2016-05-18 17:31:30.945] [INFO] one.two.three - info\n=== four\n[2016-05-18 17:31:30.945] [ERROR] one.two.three.four - error\n```\n\nsee all [examples](examples)\n\n\n## License\n\nMIT","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falekzonder%2Flog4js-nested","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Falekzonder%2Flog4js-nested","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falekzonder%2Flog4js-nested/lists"}