Telegrammer

Telegram Bot Framework written in Swift 5.1 with SwiftNIO network framework

What does it do

Telegrammer is open-source framework for Telegram Bots developers.
It was built on top of Apple/SwiftNIO

Join to our Telegram developers chat
Join to our Telegrammer channel on Vapor Discord server

The simplest code of Echo Bot looks like this:

---

main.swift

import Foundation
import Telegrammer

do {
    let bot = try Bot(token: "BOT_TOKEN_HERE")

    let echoHandler = MessageHandler { (update, _) in
        _ = try? update.message?.reply(text: "Hello \(update.message?.from?.firstName ?? "anonymous")", from: bot)
    }

    let dispatcher = Dispatcher(bot: bot)
    dispatcher.add(handler: echoHandler)

    _ = try Updater(bot: bot, dispatcher: dispatcher).startLongpolling().wait()
} catch {
    exit(1)
}

Documentation

• Read An official introduction for developers
• Check out bot FAQ
• Official Telegram Bot API

Usage without Vapor

• Use the template repository as a example https://github.com/givip/telegrammer-bot-template.git
• Current repository contains five examples of bot implementation:
  https://github.com/givip/Telegrammer/tree/master/Sources/DemoEchoBot
  https://github.com/givip/Telegrammer/tree/master/Sources/DemoHelloBot
  https://github.com/givip/Telegrammer/tree/master/Sources/DemoSchedulerBot
  https://github.com/givip/Telegrammer/tree/master/Sources/DemoSpellCheckerBot
  https://github.com/givip/Telegrammer/tree/master/Sources/DemoWebhooksLocally

Usage with Vapor

• Use the https://github.com/givip/telegrammer-bot-vapor-template.git

Demo bots

All sample bots

1. Add Telegram Token in Environment Variables, so, either create an environment variable:

$ export TELEGRAM_BOT_TOKEN='000000000:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'

2. Run Bot executable scheme or

$ swift run

EchoBot sources
Starts/stops with command “/echo”, then simply responds with your message

HelloBot sources
Says “Hello” to new users in group. Responds with “hello” message on command “/greet”

SchedulerBot sources
Demonstrate Jobs Queue scheduling mechanism.
Command “/start X” starts repeatable job, wich will send you a message each X seconds.
Command “/once X” will send you message once after timeout of X seconds.
Command “/stop” stops JobsQueue only for you. Other users continues to receive scheduled messages.

SpellCheckerBot sources
Demonstrate how works InlineMenus and Callback handlers.
Command “/start” will start bot.
Send any english text to bot and it will be checked for mistakes. Bot will propose you some fixes in case of found mistake.

Requirements

• Ubuntu 16.04 or later with Swift 5.1 or later / macOS with Xcode 11 or later
• Telegram account and a Telegram App for any platform
• Swift Package Manager (SPM) for dependencies
• Vapor 4 (optionally, for bots with database and other server side stuff)

Contributing

See CONTRIBUTING.md file.

Author

Givi Pataridze

[email protected]
@givip