lnav format file for Monolith logs, to install do: lnav -i monolith_log.json

monolith_log.json

{
  "monolith_log": {
    "title": "Monolith Log Format",
    "description": "Log format used by the monolith",
    "json": true,
    "timestamp-field": "@timestamp",
    "level-field": "level",
    "level": {
      "trace": "TRACE",
      "debug": "DEBUG",
      "info": "INFO",
      "warning": "WARN",
      "error": "ERROR"
    },
    "body-field": "message",
    "value": {
      "@timestamp": {
        "kind": "string",
        "hidden": false
      },
      "message": {
        "kind": "string",
        "hidden": false
      },
      "@version": {
        "kind": "string",
        "hidden": true
      },
      "level_value": {
        "kind": "integer",
        "hidden": true
      },
      "caller_file_name": {
        "kind": "string",
        "hidden": true
      },
      "caller_line_number": {
        "kind": "integer",
        "hidden": true
      },
      "logger_name": {
        "kind": "string",
        "hidden": false
      },
      "thread_name": {
        "kind": "string",
        "hidden": false
      },
      "caller_class_name": {
        "kind": "string",
        "hidden": true
      },
      "caller_method_name": {
        "kind": "string",
        "hidden": true
      },
      "stack_trace": {
        "kind": "string",
        "hidden": false
      }
    },
    "line-format": [
      {
        "field": "@timestamp"
      },
      " ",
      {
        "field": "level"
      },
      " ",
      {
        "field": "logger_name"
      },
      " ",
      {
        "field": "thread_name"
      },
      " ",
      {
        "field": "message"
      },
      "\n",
      {
        "field": "stack_trace"
      }
    ]
  }
}