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ncurses.\n\n![screenshot](screenshot.png)\n\n**json-log-viewer** is a feature intensive viewer and analyze tool for JSON logs created by libraries like [https://github.com/winstonjs/winston](winston).\n\nFeatures:\n\n- completely operated by hotkeys\n- powerful command line arguments\n- sort by timestamp, level or message\n- filter by any field or metadata\n- search\n\nHotkeys:\n\n- `arrows` and `page up/down` to move\n- `/` to search\n- `n` to search again\n- `s` to sort\n- `f` to filter\n- `l` to filter by level\n- `g` to go to line\n- `0` to go to first line\n- `$` to go to last line\n- `q` to quit\n\n## Install\n\n```bash\nnpm install --global json-log-viewer\n```\n\n## Usage\n\n```bash\njv application.log.2017-01-01 --sort -timestamp\n```\n\n### Configuration\n\nThe default expected log format include fields `timestamp`, `level` and `message`. If the log file you're trying to parse doesn't include those fields, you can create a config file on your HOME path called `.json-log-viewer`.\n\nFor example, if your log lines look like this:\n\n```json\n{\n  \"message\":\n    \"Matched route \\\"**_heartbeat_check\\\" (parameters: \\\"_controller\\\": \\\"**\\\\Controller\\\\**Controller::heartbeatCheckAction\\\", \\\"_route\\\": \\\"**_heartbeat_check\\\")\",\n  \"context\": [],\n  \"level\": 200,\n  \"level_name\": \"INFO\",\n  \"channel\": \"request\",\n  \"datetime\": {\n    \"date\": \"2017-12-06 09:23:42.253060\",\n    \"timezone_type\": 3,\n    \"timezone\": \"Europe/Berlin\"\n  },\n  \"extra\": []\n}\n```\n\nYou can create a mapping configuration like this:\n\n```ini\n[transform]\nlevel=level_name\ntimestamp=datetime.date\nmessage=message\nextra=$\n```\n\nThis way the messages will properly be displayed. The `$` has a special meaning: it tells the the old object should be included on the `extra` key on the resulting JSON. The result will look like this:\n\n![transform](transform.png)\n\n## Screenshots\n\n__Details view__\n\n![screenshot](screenshot1.png)\n\n__Filters__\n\n![screenshot](screenshot2.png)\n\n__Log level selection__\n\n![screenshot](screenshot3.png)\n\n## License\n\n[MIT](http://vjpr.mit-license.org)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgistia%2Fjson-log-viewer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgistia%2Fjson-log-viewer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgistia%2Fjson-log-viewer/lists"}