Logback Slack appender

UNMANTAINED

I don't have time to take care and maintain this project. I don't use logback on any of my projects anymore. If anyone wants to have their fork linked from here, or to take over this repo, drop an issue. Thanks for your support so far!

This is a simple Logback appender which pushes logs to Slack channel.

How to setup

Add dependency to com.github.maricn:logback-slack-appender:1.4.0 in your pom.xml.

Add SlackAppender configuration to logback.xml file

	<?xml version="1.0" encoding="UTF-8" ?>
	<configuration>
		...
		<appender name="SLACK" class="com.github.maricn.logback.SlackAppender">
			<!-- Slack API token -->
			<token>1111111111-1111111-11111111-111111111</token>
			<!-- Slack incoming webhook uri. Uncomment the lines below to use incoming webhook uri instead of API token. -->
			<!--
			<webhookUri>https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX</webhookUri>
			-->
			<!-- Channel that you want to post - default is #general -->
			<channel>#api-test</channel>
			<!-- Formatting (you can use Slack formatting - URL links, code formatting, etc.) -->
			<layout class="ch.qos.logback.classic.PatternLayout">
				<pattern>%-4relative [%thread] %-5level %class - %msg%n</pattern>
			</layout>
			<!-- Username of the messages sender -->
			<username>${HOSTNAME}</username>
			<!-- Emoji to be used for messages -->
			<iconEmoji>😜</iconEmoji>
			<!-- If color coding of log levels should be used -->
			<colorCoding>true</colorCoding>
		</appender>

		<!-- Currently recommended way of using Slack appender -->
		<appender name="ASYNC_SLACK" class="ch.qos.logback.classic.AsyncAppender">
			<appender-ref ref="SLACK" />
			<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
				<level>ERROR</level>
			</filter>
		</appender>

		<root>
			<level value="ALL" />
			<appender-ref ref="ASYNC_SLACK" />
		</root>

	</configuration>

Example of SlackAppender configuration to logback.groovy file (filtering by marker):

import com.github.maricn.logback.SlackAppender
import ch.qos.logback.core.filter.EvaluatorFilter
import ch.qos.logback.classic.AsyncAppender
import ch.qos.logback.classic.boolex.OnMarkerEvaluator

appender('SLACK', SlackAppender) {
  channel = "#api-test"
  username = "${HOSTNAME}"
  colorCoding = "true"
  webhookUri = "https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX"
  layout(PatternLayout) {
    pattern = "%-4relative [%thread] %-5level %class - %msg%n"
  }
  filter(EvaluatorFilter) {
    evaluator(OnMarkerEvaluator) {
      marker = "SLACK_MARKER"
    }
    onMismatch = DENY
    onMatch = NEUTRAL
  }
}

appender('ASYNC_SLACK', AsyncAppender) {
  appenderRef("SLACK")
}