Initial commit

src/main/kotlin/telegram_bot/App.kt

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+package telegram_bot
+
+import dev.inmo.tgbotapi.bot.ktor.telegramBot
+import dev.inmo.tgbotapi.extensions.api.bot.getMe
+import dev.inmo.tgbotapi.extensions.api.send.reply
+import dev.inmo.tgbotapi.extensions.behaviour_builder.buildBehaviourWithLongPolling
+import dev.inmo.tgbotapi.extensions.behaviour_builder.triggers_handling.onCommand
+import java.io.File
+import kotlinx.coroutines.*
+import kotlinx.serialization.json.Json
+
+/**
+ * This method by default expects one argument in [args] field: telegram bot configuration
+ */
+suspend fun main(args: Array<String>) {
+    // create json to decode config
+    val json = Json { ignoreUnknownKeys = true }
+    // decode config
+    val config: Config = json.decodeFromString(Config.serializer(), File(args.first()).readText())
+    // that is your bot
+    val bot = telegramBot(config.token)
+
+    // that is kotlin coroutine scope which will be used in requests and parallel works under the hood
+    val scope = CoroutineScope(Dispatchers.Default)
+
+    // here should be main logic of your bot
+    bot.buildBehaviourWithLongPolling(scope) {
+        // in this lambda you will be able to call methods without "bot." prefix
+        val me = getMe()
+
+        // this method will create point to react on each /start command
+        onCommand("start", requireOnlyCommandInMessage = true) {
+            // simply reply :)
+            reply(it, "Hello, I am ${me.firstName}")
+        }
+
+        // That will be called on the end of bot initiation. After that println will be started long polling and bot will
+        // react on your commands
+        println(me)
+    }.join()
+}

src/main/kotlin/telegram_bot/Config.kt

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+package telegram_bot
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Config(
+    val token: String
+)