Demo how to use Moshi with Kotlin

MoshiKotlinExample.kt

import com.squareup.moshi.Json
import com.squareup.moshi.KotlinJsonAdapterFactory
import com.squareup.moshi.Moshi
import com.squareup.moshi.Rfc3339DateJsonAdapter
import java.util.Date

val json = """
{
  "url": "https://api.github.com/repos/square/okio/issues/156",
  "id": 91393390,
  "number": 156,
  "title": "ByteString.utf8CharSequence()",
  "labels": [
    {
      "url": "https://api.github.com/repos/square/okio/labels/enhancement",
      "id": 86454697,
      "name": "enhancement",
      "color": "84b6eb"
    }
  ],
  "milestone": {
    "url": "https://api.github.com/repos/square/okio/milestones/2",
    "id": 992290,
    "title": "Icebox",
    "creator": {
      "url": "https://api.github.com/users/swankjesse",
      "login": "swankjesse"
    },
    "open_issues": 12,
    "closed_issues": 1,
    "created_at": "2015-02-24T00:59:14.000Z"
  },
  "state": "open",
  "created_at": "2015-06-27T00:49:40.000Z",
  "body": "Would be interesting to return a `CharSequence` that's backed by the same `ByteArray`.\n"
}
"""

data class Issue(
    val url: String,
    val id: Long,
    val number: Long,
    val title: String,
    val labels: List<Label> = listOf<Label>(),
    val milestone: Milestone?,
    val assignees: List<User> = listOf<User>(),
    val state: State,
    val comments: Long = 0L,
    @Json(name = "created_at") val createdAt: Date,
    @Json(name = "closed_at") val closedAt: Date?,
    val body: String = ""
)

enum class State {
  @Json(name = "open") OPEN,
  @Json(name = "closed") CLOSED
}

data class Label(
    val url: String,
    val id: Long,
    val name: String,
    val color: String = "46DF1B"
)

data class Milestone(
    val url: String,
    val id: Long,
    val title: String,
    val creator: User,
    @Json(name = "open_issues") val openCount: Long = 0L,
    @Json(name = "closed_issues") val closedCount: Long = 0L,
    @Json(name = "created_at") val createdAt: Date,
    @Json(name = "due_on") val dueOn: Date?
)

data class User(val url: String, val login: String)

fun main(args: Array<String>) {
  val moshi = Moshi.Builder()
      .add(KotlinJsonAdapterFactory)
      .add(Date::class.java, Rfc3339DateJsonAdapter().nullSafe())
      .build()

  val issueAdapter = moshi.adapter(Issue::class.java)

  val issue = issueAdapter.fromJson(json)

  println(issue)
}

its is similar to serializable naming in data model for retrofit with latest some extra features i think