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https://github.com/vendelieu/telegram-bot
Telegram Bot API wrapper with handy Kotlin DSL.
https://github.com/vendelieu/telegram-bot
bot kotlin telegram telegram-bot telegram-bot-api
Last synced: 4 months ago
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Telegram Bot API wrapper with handy Kotlin DSL.
- Host: GitHub
- URL: https://github.com/vendelieu/telegram-bot
- Owner: vendelieu
- License: apache-2.0
- Created: 2022-05-26T09:59:35.000Z (about 2 years ago)
- Default Branch: master
- Last Pushed: 2024-03-11T21:47:24.000Z (4 months ago)
- Last Synced: 2024-03-12T03:43:47.153Z (4 months ago)
- Topics: bot, kotlin, telegram, telegram-bot, telegram-bot-api
- Language: Kotlin
- Homepage: https://vendelieu.github.io/telegram-bot/
- Size: 39.6 MB
- Stars: 118
- Watchers: 2
- Forks: 6
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- Funding: FUNDING.yml
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
Lists
- awesome-kotlin-multiplatform - telegram-bot
- awesome-telegram - KtGram - Telegram Bot API wrapper with handy Kotlin DSL. (Bots / Bot Libs)
README
# Telegram Bot
[](https://search.maven.org/artifact/eu.vendeli/telegram-bot)
[](https://core.telegram.org/bots/api#february-16-2024)\
[](https://vendelieu.github.io/telegram-bot/)
[](https://codecov.io/gh/vendelieu/telegram-bot) \
[](https://t.me/venny_tgbot)
[](https://t.me/v_telegramBot)
Telegram Bot Api wrapper with a user-friendly interface.
# Installation
Add the ksp plugin and library to the dependencies.
build.gradle.kts example:
```gradle
plugins {
// ...
id("com.google.devtools.ksp") version "1.9.23-1.0.19"
}
dependencies {
// ...
implementation("eu.vendeli:telegram-bot:5.0.4")
ksp("eu.vendeli:ksp:5.0.4")
}
```
Or if you use a different builder, look in
the [installation](https://github.com/vendelieu/telegram-bot/wiki/Installation) article.
# Samples
- [Template repository](https://github.com/vendelieu/telegram-bot_template) - draft example.
- [FeedbackBot](https://github.com/ktgram/feedback-bot) - Use ready example of a feedback bot.
- [Conversation](https://github.com/vendelieu/telegram-bot_template/tree/conversation) - An example of using `FSM` and
usage of `BotContext`.
- [Echo](https://github.com/vendelieu/telegram-bot_template/tree/echo) - Echo bot :)
- [Poll](https://github.com/vendelieu/telegram-bot_template/tree/poll) - An example of how to build a questionnaire bot.
- [Spring Boot usage](https://github.com/vendelieu/telegram-bot_template/tree/spring-bot) - An example of using the bot
organically in the Spring ecosystem, using its built-in DI.
- [Heroku ready example](https://github.com/vendelieu/telegram-bot_template/tree/heroku) - An example of a bot working
via Heroku.
More samples
- [Ktor webhook](https://github.com/vendelieu/telegram-bot_template/tree/ktor-webhook) - An example of using webhook
with Ktor.
- [Native example](https://github.com/ktgram/native-example) - An example of using a bot with Kotlin Native target.
- [Web app](https://github.com/ktgram/webapp) - Example of a bot using Telegram Webapps.
# Usage
```kotlin
suspend fun main() {
val bot = TelegramBot("BOT_TOKEN")
bot.handleUpdates()
// start long-polling listener
}
@CommandHandler(["/start"])
suspend fun start(user: User, bot: TelegramBot) {
message { "Hello, what's your name?" }.send(user, bot)
bot.inputListener[user] = "conversation"
}
@RegexCommandHandler("blue colo?r")
suspend fun color(user: User, bot: TelegramBot) {
message { "Oh you also like blue colour?" }.send(user, bot)
}
@InputHandler(["conversation"])
suspend fun startConversation(user: User, bot: TelegramBot) {
message { "Nice to meet you, ${message.text}" }.send(user, bot)
message { "What is your favorite food?" }.send(user, bot)
bot.inputListener.set(user) { "conversation-2step" } // another way to set input
}
//..
```
It is also possible to process updates functionally:
```kotlin
fun main() = runBlocking {
val bot = TelegramBot("BOT_TOKEN")
bot.handleUpdates { update ->
onCommand("/start") {
message { "Hello, what's your name?" }.send(user, bot)
bot.inputListener[user] = "conversation"
}
inputChain("conversation") {
message { "Nice to meet you, ${message.text}" }.send(update.getUser(), bot)
message { "What is your favorite food?" }.send(update.getUser(), bot)
}.breakIf({ message.text == "peanut butter" }) { // chain break condition
message { "Oh, too bad, I'm allergic to it." }.send(update.getUser(), bot)
// action that will be applied when match
}.andThen {
// next input point if break condition doesn't match
}
}
}
```
### Configuration
The library has very flexible customization options, \
and the ability to configure from the environment variables out of the box is also provided.
You can read more in a [Bot configuration](https://github.com/vendelieu/telegram-bot/wiki/Bot-configuration) article.
### Processing responses
if you want to operate with response you can
use [`sendAsync()`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.interfaces/-action/send-async.html)
instead
of [`send()`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.interfaces/-action/send.html)
method, which
returns [`Response`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.types.internal/-response/index.html):
```kotlin
message { "test" }.sendAsync(user, bot).onFailure {
println("code: ${it.errorCode} description: ${it.description}")
}
```
Any async request returns
a [`Response`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.types.internal/-response/index.html)
on which you can also use
methods [`getOrNull()`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.types.internal/get-or-null.html)
, [`isSuccess()`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.types.internal/is-success.html)
, [`onFailure()`](https://vendelieu.github.io/telegram-bot/-telegram%20-bot/eu.vendeli.tgbot.types.internal/on-failure.html)
### Additional resources
> There is a [wiki](https://github.com/vendelieu/telegram-bot/wiki) section that have helpful information.
### Questions
You're always welcome in our [chat](https://t.me/venny_tgbot), feel free to ask.