managed 다중 사용자 애플리케이션 - Kotlin SDK

val app = App.create(YOUR_APP_ID) // Replace with your App ID
runBlocking {
    // Log in as Joe
    val joeCredentials = Credentials.emailPassword(joeEmail, joePassword)
    try {
        val joe = app.login(joeCredentials)
        // The active user is now Joe
        val user = app.currentUser
        Log.v("Successfully logged in. User state: ${joe.state}. Current user is now: ${user?.id}")
        assertEquals(joe, user)
    } catch (e: Exception) {
        Log.e("Failed to log in: ${e.message}")
    }
    // Log in as Emma
    val emmaCredentials = Credentials.emailPassword(emmaEmail, emmaPassword)
    try {
        val emma = app.login(emmaCredentials)
        // The active user is now Emma
        val user = app.currentUser
        Log.v("Successfully logged in. User state: ${emma.state}. Current user is now: ${user?.id}")
        assertEquals(emma, user)
    } catch (e: Exception) {
        Log.e("Failed to log in: ${e.message}")
    }
}

// Get all known users on device
val allUsers = app.allUsers()
for ((key) in allUsers) {
    Log.v("User on Device $device: $key")
}

try {
    joe.logOut()
    Log.v("Successfully logged out user. User state: ${joe.state}. Current user is now: ${app.currentUser?.id}")
} catch (e: Exception) {
    Log.e("Failed to log out: ${e.message}")
}
val joeIsAUser = app.allUsers().containsKey(joe.id)
assertTrue(joeIsAUser)

assertEquals(emma, app.currentUser)
try {
    emma.remove()
    Log.v("Successfully removed user. User state: ${emma.state}. Current user is now: ${app.currentUser?.id}")
} catch (e: Exception) {
    Log.e("Failed to remove user: ${e.message}")
}
val emmaIsAUser = app.allUsers().containsKey(emma.id)
assertFalse(emmaIsAUser)