Typesafe Emoji is a wrapper around Java's Unicode Character handling.
For an example of Typesafe Emoji in an Enterprise Mission Critical Environment, please see Typesafe Emojr.
Add to build.sbt
resolvers += Resolver.typesafeIvyRepo("releases")
libraryDependencies += "com.typesafe" %% "emoji" % "1.0.0"
$ sbt console
scala> import com.typesafe.emoji._
scala> import com.typesafe.emoji.Emoji.Implicits._
You can map Emoji directly from a Unicode character:
scala> Emoji(0x1f603)
res0: comp.typesafe.emoji.Emoji = 😃
Or you can map the implicit from Int or String:
scala> 0x1f603.emoji
res1: comp.typesafe.emoji.Emoji = 😃
scala> "0x1f603".codePointEmoji
res2: com.typesafe.emoji.Emoji = 😃
Once you have an emoji, you can ask it for codePoint (Int) or hexidecimal value:
scala> res2.hex
res3: String = 0x1f603
scala> res2.codePoint
res4: Int = 128515
Unicode codepoints are not very convenient, so there's a ShortCodes class which is designed to be used as an implicit parameter for emoji mapping.
There is a default mapping available, which allows you to map from a string directly to an emoji:
scala> import com.typesafe.emoji.ShortCodes.Implicits._
scala> import com.typesafe.emoji.ShortCodes.Defaults._
scala> "smiley".emoji
res5: com.typesafe.emoji.Emoji = 😃
You can query the current mapping for short codes:
scala> ShortCodes.current.shortCodes.filter(_.startsWith("heart"))
res6: scala.collection.Set[String] = Set(heart_decoration, heart_eyes_cat, hearts, heart_eyes, heartpulse, heart, heartbeat)
Finally, you can also use your own short codes mapping:
scala> implicit val mycodes = new ShortCodes()
mycodes: com.typesafe.emoji.ShortCodes = com.typesafe.emoji.ShortCodes@49fd69f5
scala> mycodes.entry(Emoji(0x1f603), "yay")
scala> "yay".emoji
res1: com.typesafe.emoji.Emoji = 😃
Sadly, there is no direct mapping to emoji-cheat-sheet or emoji searcher, because some emoji are mapped directly to glyphs, without Unicode involvement, e.g. 
.