OpenTracing for Play Framework

Usage

Add dependency

This project is cross-versioned against Play. The Play version appears as a suffix.

// Play 2.3.x-2.4.x
libraryDependencies += "com.lucidchart" % "opentracing-play-active" % "<version>-2.3"

// Play 2.5.x
libraryDependencies += "com.lucidchart" % "opentracing-play-active" % "<version>-2.5"

Configure Akka

This project ThreadContextSpan and GlobalTracer.

To propagate the thread-local span, add akka-thread-context as a dependency and configure Akka to use DispatchConfigurator.

akka.actor.default-dispatcher.type = com.lucidchart.akka.threadcontext.DefaultDispatcherConfigurator

Add filters

Add TracingFilter, specifying the SpanTaggers that you want.

import io.opentracing.play.active

class Filters extends DefaultHttpFilters(
  new DefaultTracingFilter(
    new ContentTagger,               // content headers
    new HttpVersionTagger,           // HTTP version
    new StandardSpanTagger,          // standard OpenTracing tags
    new TagsSpanTagger(_ => true)    // Play request tags
  )
)