Sending Telegram notifications

Describes the how to configure sending notifications via Telegram

To send a notification via Telegram you need to supply a channel id, a bot token and a an api key.

To obtain the bot token (aka bot id), message the @BotFather bot. After creating the bot, send a message to the bot, so it can reply. For more details on Telegram bots, see the Telegram bot documentation.

After obtaining the bot token you can obtain the channel id with a cURL script:

BOT_TOKEN="YOURBOTTOKEN" curl -s "https://api.telegram.org/bot$BOT_TOKEN/getUpdates" \
  | grep -o '"id":[0-9]*' | head -1 | cut -d':' -f2

To obtain the API key, follow the Telegram guide to creating an application.

With all required values obtained, you can set up the Telegram notifications in the general settings:

Set up Telegram notifications with the default options editor

Set up Telegram option with a text field

You can toggle between the two views using the "Edit as list" and "Edit as text" links.

Besides the mandatory options, it is also possible to configure:

• The notification message and format

• Conditions on when to send emails

• Conditions on what log elements to include

Telegram Notification Options

Bot Configuration

--send-telegram-bot-id (String) - The Telegram bot ID that will send messages

--send-telegram-api-key (String) - The API key for authenticating your Telegram bot

Message Destination

--send-telegram-channel-id (String) - The channel ID where messages will be sent

--send-telegram-topid-id (String) - Topic ID for posting in specific topics within Telegram groups

Notification Content

--send-telegram-message (String) - Template for message content with support for variables like %OPERATIONNAME%, %REMOTEURL%, %LOCALPATH%, and %PARSEDRESULT%

--send-telegram-result-output-format (format) - Format for presenting operation results

• Duplicati

• Json

Notification Filtering

--send-telegram-level (level) - Controls which result types trigger notifications:

• Success - Only successful operations

• Warning - Operations that completed with warnings

• Error - Operations that failed with recoverable errors

• Fatal - Operations that failed with critical errors

• All - All operation results regardless of status

--send-telegram-any-operation (Boolean) - When enabled, sends notifications for all operations, not just backups

--send-telegram-log-level (Enumeration) - Sets minimum severity level for included log entries:

• ExplicitOnly - Show only explicitly requested messages

• Profiling - Include performance measurement data

• Verbose - Include detailed diagnostic information

• Retry - Include information about retry attempts

• Information - Include general status messages

• DryRun - Include simulation mode outputs

• Warning - Include potential issues that didn't prevent completion

• Error - Include critical failures that require attention

--send-telegram-log-filter (String) - Filters log entries based on specified patterns

--send-telegram-max-log-lines (Integer) - Limits the number of log lines included in notifications

For details on how to customize the notification message, see the section on customizing message content.