'de.heikoseeberger:akka-http-json4s_2.11:1.2.0'
<dependency>
<groupId>de.heikoseeberger</groupId>
<artifactId>akka-http-json4s_2.11</artifactId>
<version>1.2.0</version>
</dependency>
<dependency org="de.heikoseeberger" name="akka-http-json4s_2.11" rev="1.2.0"/>
"de.heikoseeberger", "akka-http-json4s_2.11", "1.2.0"