vrl 0.32.0

Vector Remap Language
Documentation 
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{
  "anchor": "log",
  "name": "log",
  "category": "Debug",
  "description": "Logs the `value` to [stdout](https://en.wikipedia.org/wiki/Standard_streams#Standard_output_(stdout)) at the specified `level`.",
  "arguments": [
    {
      "name": "value",
      "description": "The value to log.",
      "required": true,
      "type": [
        "any"
      ]
    },
    {
      "name": "level",
      "description": "The log level.",
      "required": false,
      "type": [
        "string"
      ],
      "enum": {
        "trace": "Log at the `trace` level.",
        "debug": "Log at the `debug` level.",
        "info": "Log at the `info` level.",
        "warn": "Log at the `warn` level.",
        "error": "Log at the `error` level."
      },
      "default": "info"
    },
    {
      "name": "rate_limit_secs",
      "description": "Specifies that the log message is output no more than once per the given number of seconds.\nUse a value of `0` to turn rate limiting off.",
      "required": false,
      "type": [
        "integer"
      ],
      "default": "1"
    }
  ],
  "return": {
    "types": [
      "null"
    ]
  },
  "examples": [
    {
      "title": "Log a message",
      "source": "log(\"Hello, World!\", level: \"info\", rate_limit_secs: 60)",
      "return": null
    },
    {
      "title": "Log an error",
      "source": ". = { \"field\": \"not an integer\" }\n_, err = to_int(.field)\nif err != null {\n    log(err, level: \"error\")\n}\n",
      "return": null
    }
  ],
  "pure": false
}