@metafoks/telegram-bot NPM

Metafoks Telegram Bot

Extension for Metafoks Application

Installation

1. Project Preparation

You need to install and configure the Metafoks Application.
Install the extension from NPM: npm i @metafoks/telegram-bot.

2. Configuration

Add the following information to the config/config.json configuration file:

{
  "telegramBot": {
    "token": "bot_father_token_api"
  }
}

For more details on how to obtain a token for the bot, please refer to the Telegram documentation.

3. Installation of the Extension in the Project

Use the MetafoksApplication annotation with the with parameter:

import { MetafoksApplication, With } from "@metafoks/app";
import { telegramBotExtension } from "@metafoks/telegram-bot";

@MetafoksApplication
@With(telegramBotExtension)
class Application {
    constructor(private deps: {}) {}

    start() {
        // ...
    }
}

4. Registration of Message Handlers

To run the bot, you need to create a message handler component: create a file called messageHandler.component.ts anywhere in the project.

// file: messageHandler.component.ts
// imports...

// telegramMessageHandler - mandatory name for the component
@Component( "telegramMessageHandler" )
export default class MessageHandlerComponent implements TelegramMessageHandler {
    onMessage(event: MessageEvent) {
        event.chat.sendMessage( "Hi!" );
    }
}

Once this is done, you can start the bot and send any message.

5. Registration of Command Handlers

First, you need to register the commands:

{
  "telegramBot": {
    "token": "bot_father_token_api",
    "supportedCommands": [
      "hello"
    ]
  }
}

Next, create a file called commandHandler.component.ts anywhere in the project.

// file: commandHandler.component.ts
// imports...

// telegramCommandHandler - mandatory name for the component
@Component( "telegramCommandHandler" )
export default class CommandHandlerComponent implements TelegramCommandHandler {
    onCommand(event: NewCommandEvent) {
        if (event.command === "hello") {
            event.chat.sendMessage( "Hi!" );
        }
    }
}

Configuration

To configure the bot, create a telegramBot section in the config/config.json file.

{
  "telegramBot": {}
}

token (string) - The token for the Telegram bot
supportedCommands (string) - The list of supported commands
creatorId (string?) - The ID of the bot creator (required for critical messages)
allowSendStartMessage (boolean?) - Default: true. If set to true, the creatorId will receive a message when the bot starts or restarts.
autorun (boolean?) - Default: true. Allows bot starts with application