<dependency>
  <groupId>io.socket</groupId>
  <artifactId>engine.io-client</artifactId>
  <version>2.1.0</version>
</dependency>

'io.socket:engine.io-client:jar:2.1.0'

<dependency org="io.socket" name="engine.io-client" rev="2.1.0">
  <artifact name="engine.io-client" type="jar" />
</dependency>

@Grapes(
@Grab(group='io.socket', module='engine.io-client', version='2.1.0')
)

compile 'io.socket:engine.io-client:2.1.0'

libraryDependencies += "io.socket" % "engine.io-client" % "2.1.0"

[io.socket/engine.io-client "2.1.0"]