A Logback appender Logback that can write logs to a Discord channel.

Setup

Add through the JitPack repo to your project:

Maven pom.xml

    <repositories>
        <repository>
            <id>jitpack.io</id>
            <url>https://jitpack.io</url>
        </repository>
    </repositories>


    <dependency>
        <groupId>com.github.napstr</groupId>
        <artifactId>logback-discord-appender</artifactId>
        <version>0.0.2</version>
    </dependency>

Gradle build.gradle

    repositories {
        maven { url 'https://jitpack.io' }
    }


    dependencies {
        compile 'com.github.napstr:logback-discord-appender:0.0.2'
    }

Configure the appender in your logback.xml:

<configuration>
    <appender name="DISCORD" class="com.github.napstr.logback.DiscordAppender">
       <!-- do not set your webhook here if you want to commit this file to your VCS, instead look below for an example on how to set it at runtime -->
       <webhookUri>https://discordapp.com/api/webhooks/1234567890/abcdefghijklmnopqrstuvwxyz</webhookUri>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%d{HH:mm:ss} [%thread] [%-5level] %logger{36} - %msg%n```%ex{full}```</pattern>
        </layout>
        <!-- Fill in username and avatarUrl with your desired values -->
        <username>Discurd</username>
        <avatarUrl>http://i.imgur.com/UoiA3OQ.png</avatarUrl>
    </appender>

    <appender name="ASYNC_DISCORD" class="ch.qos.logback.classic.AsyncAppender">
        <appender-ref ref="DISCORD" />
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERROR</level>
        </filter>
    </appender>

    <root>
        <level value="DEBUG" />
        <appender-ref ref="ASYNC_DISCORD" />
    </root>

</configuration>

Treat your webhookUri the same way you treat your bot token, keep it secret and do not commit it to your VCS. You can set the webhookUri at runtime with this code:

    LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
    AsyncAppender discordAsync = (AsyncAppender) lc.getLogger(Logger.ROOT_LOGGER_NAME).getAppender("ASYNC_DISCORD");
    DiscordAppender discordAppender = (DiscordAppender) discordAsync.getAppender("DISCORD");
    discordAppender.setWebhookUri(yourSecretWebhookUri);

Todos:

• Enforce Discord ratelimits
• Support for tts, embeds and/or files