This is GitHub Action to send messages or files to Telegram using official Telegram Bot API.

TL;DR - Bot token and chat ID required.

1. First of all, you need to create (or take already existed if you have) Telegram Bot. You need to go to @BotFather bot in Telegram to create one. Just follow bot instructions.
   After creating a bot, you need to write down bot token. You can find token of all your bot with @BotFather bot.
2. Next, you need to create Telegram channel (can be private) and add your bot to it. You need to grant at least Post messages permission.
3. After creating channel, you need to get channel ID. You can do it with @username_to_id_bot (Not official Telegram bot).
4. Now you have both bot token and channel ID. Add these variables to Github Secrets.
   It's strictly not recommended to use raw values in your pipeline, please consider using Secrets!
5. Now, you're ready to go! Go to Examples section for some inspiration!

1. Send simple message

   on: [ push ]
   
   jobs:
     tg_post_job:
       runs-on: ubuntu-latest
       name: A job to post data in tg
       steps:
         - name: Send data
           uses: BorisTestov/tg_sender_action@latest
           env:
             TG_SENDER_TG_CHAT_ID: ${{ secrets.TG_SENDER_TG_CHAT_ID }}
             TG_SENDER_TG_BOT_TOKEN: ${{ secrets.TG_SENDER_TG_BOT_TOKEN }}
             TG_SENDER_PAYLOAD_MESSAGE: "Hello World!"
             TG_SENDER_PAYLOAD_PARSE_MODE: "HTML"

2. Send file

   on: [ push ]
   
   jobs:
     tg_post_job:
       runs-on: ubuntu-latest
       name: A job to post data in tg
       steps:
         - name: Send data
           uses: BorisTestov/tg_sender_action@latest
           env:
             TG_SENDER_TG_CHAT_ID: ${{ secrets.TG_SENDER_TG_CHAT_ID }}
             TG_SENDER_TG_BOT_TOKEN: ${{ secrets.TG_SENDER_TG_BOT_TOKEN }}
             TG_SENDER_PAYLOAD_FILE_PATH: /path/to/file

3. Send file with caption

   on: [ push ]
   
   jobs:
     tg_post_job:
       runs-on: ubuntu-latest
       name: A job to post data in tg
       steps:
         - name: Send data
           uses: BorisTestov/tg_sender_action@latest
           env:
             TG_SENDER_TG_CHAT_ID: ${{ secrets.TG_SENDER_TG_CHAT_ID }}
             TG_SENDER_TG_BOT_TOKEN: ${{ secrets.TG_SENDER_TG_BOT_TOKEN }}
             TG_SENDER_PAYLOAD_MESSAGE: "Hello World!"
             TG_SENDER_PAYLOAD_FILE_PATH: /path/to/file

4. Send nothing (Doesn't trigger error but do nothing)

   on: [ push ]
   
   jobs:
     tg_post_job:
       runs-on: ubuntu-latest
       name: A job to post data in tg
       steps:
         - name: Send data
           uses: BorisTestov/tg_sender_action@latest
           env:
             TG_SENDER_TG_CHAT_ID: ${{ secrets.TG_SENDER_TG_CHAT_ID }}
             TG_SENDER_TG_BOT_TOKEN: ${{ secrets.TG_SENDER_TG_BOT_TOKEN }}

• TG_SENDER_TG_BOT_TOKEN - Bot token. Required.
• TG_SENDER_TG_CHAT_ID - ID of the chat to send data to. Required.
  
  
• TG_SENDER_PAYLOAD_FILE_PATH - Path to file to send. Optional.
• TG_SENDER_PAYLOAD_MESSAGE - Message to send. Optional.
• TG_SENDER_PAYLOAD_PARSE_MODE - Parse mode for message. Can be one of (HTML, MARKDOWN, MARKDOWNV2). If not set or set to incorrect value, no parse mode will be used (plain text will be sent)
  
  
• TG_SENDER_LOG_LEVEL - Log level. Optional. Default is INFO.
• TG_SENDER_LOG_FORMAT - Message format. Optional. Default is %(asctime)s,%(msecs)03d %(levelname)-8s %(name)s: %(message)s.
• TG_SENDER_LOG_DATEFMT - Date format. Optional. Default is %b-%d-%Y %H:%M:%S

⚠️You can send only one message and one file at a time. If you need to send several messages, create several Action instances.⚠️

⚠️Be careful with Telegram limitations for bots. You can't send large files (the limit is 50 Mb for now) .⚠️

⚠️Also consider not sending messages too frequently as Telegram has frequency limitation .⚠️

⚠️This action works only on Linux steps as it uses Docker.⚠️

Licensed under the MIT license. See LICENSE for more information.