Klogging and Ktor

Klogging can be used in Ktor applications easily.

Many Ktor JVM modules specify SLF4J as a dependency. The Ktor Project Generator specifies Logback as a dependency and generates a src/main/resources/logback.xml configuration file.

Configuration

The simplest way to configure Klogging is to replace the Logback dependency with that for Klogging:

dependencies {
    // Ktor engine and plugin dependencies
    // implementation("ch.qos.logback:logback-classic:$logback_version")
    implementation("io.klogging:slf4j-klogging:0.8.0")

    // Other dependencies
}

Add src/main/resources/klogging.json configured as described in Configuration with JSON, for example:

{
  "sinks": {
    "stdout": {
      "renderWith": "RENDER_ANSI",
      "sendTo": "STDOUT"
    }
  },
  "logging": [
    {
      "levelRanges": [
        {
          "fromMinLevel": "INFO",
          "stopOnMatch": true,
          "toSinks": [
            "stdout"
          ]
        }
      ]
    }
  ]
}