PropagationContextElement

ThreadContextElement that ensures that contexts registered with the Micrometer Context Propagation library are captured and restored when a coroutine is resumed on a thread. This is typically being used for Micrometer Tracing support in Kotlin suspended functions.

It requires the io.micrometer:context-propagation library. If the org.jetbrains.kotlinx:kotlinx-coroutines-reactor dependency is also on the classpath, this element also supports Reactor Context.

PropagationContextElement can be used like this:

 fun main() {
	runBlocking(Dispatchers.IO + PropagationContextElement()) {
		suspendingFunction()
	}
 }

suspend fun suspendingFunction() {
    delay(1)
    logger.info("Log statement with traceId")
}