Getting started with Kodein-Log

This guide assumes a JVM target. Kodein-Log works exactly the same on all targets that are supported by Kotlin (JVM, Android, JS, Native).

Install

In your build.gradle.kts file, add the Maven Central repository:

repositories {
  mavenCentral()
}

Then add the dependency:

dependencies {
    implementation 'org.kodein.log:kodein-log:0.13.0'
}

More detailed installation guide here.

Before being able to log anything, you need to create a LoggerFactory, to define the format of your logs and on which frontend they should be sent.

create a LoggerFactory
```
val loggerFactory = LoggerFactory.default (1)
```
1 Initialize a LoggerFactory with the default output format.

create a Logger

class MyController {
    private val logger = LoggerFactory.default.newLogger<MyController>() (1)
}

Initialize a Logger from a given LoggerFactory.

Thanks to the awesome Kotlin type system we can even go further, without explicitly naming the Tag used for logging:

class MyController(private val loggerFactory: LoggerFactory) {
    private val logger = newLogger(loggerFactory) (1)
}

1	Initialize a `Logger` from a given `LoggerFactory`, implicitly tagged with `MyController`.

Use the logger

logger.info { "Well done..." }
logger.warning { "...you have completed the Getting Started guide." }

Logging levels available: debug / info / warning / error.

More detailed on Logger initialization and usage.

If you want to know more about frontend implementation you can read Working with custom frontends.