brave-kt

brave-kt is the library that adds Kotlin friendly API for brave

How to use it

Tracer with ScopedSpan

Previously,

val span = Tracing.currentTracer().startScopedSpan()
try {
    // whatever you want to do to trace with span
} finally {
    span.finish()
}

Now we can do like this

val result = tracer.scopedSpan("DB ACCESS") {
    // whatever you want to do to trace with span
}

You can pass start timestamp, too

tracer.scopedSpan("DB ACCESS", startTimestamp) {
    // whatever you want to do to trace with span
}

Span

Previously,

span.start()
try {
    // whatever you want to do to trace with span
} finally {
    span.finish()
}

Now we can do like this

span.use {
    // whatever you want to do to trace with span
}

You can pass start timestamp, too

span.use(startTimestamp) {
    // whatever you want to do to trace with span
}

How to Install

Use gradle!

dependencies {
    compile("io.zipkin.brave:brave:${brave.version}")
    compile("app.ubie:brave-kt:1.0.0")
}

You can of course use this library with spring-cloud-gcp-starter-trace

dependencies {
    compile("org.springframework.cloud:spring-cloud-gcp-starter-trace:${cloudgcp.version}")
    compile("app.ubie:brave-kt:1.0.0")
}