This adds support for TopicID as specified in parameter "send-telegram-topid-id" which allows the messages to be organized in topics on a group.
Finding out your topic ID in a group can be rather tricky the easiest way is to use curl to create it.
```bash
export CHAT_ID="-99999999"
export TOPIC_NAME="Your Topic"
export BOT_TOKEN="7777777777:AAAAAAAAA-4WwwwwwwwwwwwwwwwwwwwwwwQ"
curl -X POST \
-H "Content-Type: application/json" \
-d "{\"chat_id\":\"$CHAT_ID\",\"name\":\"$TOPIC_NAME\"}" \
https://api.telegram.org/bot$BOT_TOKEN/createForumTopic
```
Which will response with a json where message_thread_id is the Topic ID
```bash
{"ok":true,"result":{"message_thread_id":33,"name":.....
```
Fixes the Telegram notification to use the correct API URL and to send the message in chunks if it is too long.
Will add this to the documentation.
First create your telegram bot by messaging the @BotFather
For more information https://core.telegram.org/bots
Once you have created your bot you will have a bot token.
Now on the bot channel, send one message, “Hello”. This is important because the bot cannot initiate a conversation, it can only respond, so therefore that is the only way to obtain the chatId which needs to be configured on Duplicati.
Now on a browser or curl, access:
https://api.telegram.org/botYOURBOTTOKEN/getUpdates
Look for the property
"chat":{"id”:111122233,
One way to get that with curl is:
BOT_TOKEN="YOURBOTTOKEN" curl -s "https://api.telegram.org/bot$BOT_TOKEN/getUpdates" | grep -o '"id":[0-9]*' | head -1 | cut -d':' -f2