ChatService3.kt

// android/app/src/main/java/io/getstream/thestream/services/ChatService.kt:48
fun createGroupChannel(channelName: String) {
    val channelId = channelName
        .toLowerCase(Locale.getDefault())
        .replace("\\s".toRegex(), "-")

    val result = client
        .createChannel(
            ModelType.channel_livestream,
            channelId,
            mapOf(
                "name" to channelName,
                "image" to "https://robohash.org/${channelId}.png"
            )
        )
        .execute()

    if (result.isError) {
        throw result.error()
    }
}