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    npm install logginator


    var log = require('logginator')(config);"I am a log message");


    Optional. If left unspecified, logginator will default to console output.

    To configure the backends, specify an array with the desired backend configurations, for example:

    var log = require('logginator')([
        "transport": "console"
      }, {
        "transport": "syslog"


    To output logs to the console, use this configuration:

      "transport": "console"

    Additional options are:

    • level: The minimum level of log messages to output to this logger, for example "info". Keep this unset to allow all messages that are accepted by the logger object
    • handleExceptions: Set to true to intercept unhandled exceptions and output them to this log target
    • exceptionsLevel: The log level at which to log exceptions. Defaults to "error"
    • humanReadableUnhandledException: Format exception log output in a more readable fashion


    To output logs to syslog, this configuration is sufficient:

      "transport": "syslog"

    Additional options are:

    • appname: The name this process should use to identify itself to syslog. By default, logginator tries to deduce the name of the node project that uses logginator as a module.
    • localhost: The hostname of the current machine, as sent to syslog. Defaults to os.hostname().
    • facility: The facility, in syslog terminology, that the logger should log to. This concept only makes sense in a syslog setting, so refer to syslog documentation if you want to make an informed choice. Otherwise, stick with the default value, which is "local0".
    • protocol: The protocol via which to log. The default, and recommended, value, is "unix", which makes logging go via Unix datagram sockets to the path specified in the path option. Other choices are "tcp4", "tcp6", "udp4" and "udp6", which all require host and port to be specified.
    • path: The path to log to when using "unix" for protocol. If not set, logginator will try to deduce the default system log pipe by trying /dev/log, /var/run/syslog and /var/run/log in order. If all of these fail, logginator will raise an exception.
    • host and port: The host and port pair for the TCP or UDP log target if using any other protocol than "unix". Note that the target syslog daemon must be configured to accept connections on the specified protocol.


    Configuration options:

    • webhook_url: required The webhook URL, something like
    • level: If specified, this logger will only log messages at the specified level of importance and more important messages
    • custom_formatter: a function (level, msg, meta) which returns a Slack payload object

    Additionally, you can specify any Slack message parameters (such as username and channel), and it will be applied as a fallback if the given argument is not specified per message.

    For example, a valid configuration could look like this:

      "transport": "slack",
      "webhook_url": "",
      "channel": "#test-channel",
      "username": "ErrorBot",
      "level": "error",
      "handleExceptions": true




    npm i logginator

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