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@jameslnewell/logger\n\n[![CircleCI](https://circleci.com/gh/jameslnewell/logger/tree/master.svg?style=svg)](https://circleci.com/gh/jameslnewell/logger/tree/master)\n\nA logging library.\n\n## Installation\n\n```sh\nyarn add @jameslnewell/logger\n```\n\n## Usage\n\n### Using a logger\n```js\nimport logger from '@jameslnewell/logger';\n\nlogger.info('Server is listening on http://localhost:3000');\n```\n\n### Using an extended logger\n```js\nimport logger from '@jameslnewell/logger';\n\nconst log = logger.extend('my-server');\n\nlog.info('Server is listening on http://localhost:3000');\n```\n\n### Adding the time to the logs\n```js\nimport logger, {time} from '@jameslnewell/logger';\n\nlogger.use(time());\n```\n\n### Adding the version to the logs\n```js\nimport logger, {version} from '@jameslnewell/logger';\n\nlogger.use(version());\n```\n\n### Adding a custom field to the logs\n```js\nimport logger from '@jameslnewell/logger';\n\nlogger.use(log =\u003e ({...log, foo: 'bar'}));\n```\n\n### Filtering the logs\n```js\nimport logger, {Level, filter} from '@jameslnewell/logger';\n\nlogger.use(filter(log =\u003e log.level === Level.error));\n```\n\n### Writing logs to the console\n```js\nimport logger, {ConsoleOutputStream} from '@jameslnewell/logger';\n\nlogger.pipe(new ConsoleOutputStream());\n```\n\n### Writing logs to a file\n```js\nimport logger, {FileOutputStream} from '@jameslnewell/logger';\n\nlogger.pipe(new FileOutputStream());\n```\n\n### Writing logs to a file on error\n```js\nimport logger, {MemoryOutputStream} from '@jameslnewell/logger';\n\nconst logs = logger.pipe(new MemoryOutputStream());\ntry {\n  // do stuff here\n} catch (error) {\n  logger.error(error);\n  fs.WritingFileSync('app.log', logs);\n}\n```\n\n### Writing logs to CloudWatch\n```js\nimport logger, {CloudwatchOutputStream} from '@jameslnewell/logger';\n\nlogger.pipe(new CloudwatchOutputStream({\n  group: 'my-group',\n  stream: 'my-stream',\n}));\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjameslnewell%2Flogger","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjameslnewell%2Flogger","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjameslnewell%2Flogger/lists"}