Weekly N8N executions failures report to Telegram

Description

How it works
Weekly triggered
Fetches all previous executions of a given workflow
Filter for failures and aggregate them into a single report
Sends them to a given Telegram chat.

Set up steps
Create a new N8N api token in the settings panel.
Add new N8N credentials in the credentials panel.
Add new Telegram credentials in the credentials panel.
Select N8N credentials and select the workflow ID in the "Get all previous executions" node.
Select Telegram credentials and enter the chat-id in the "Telegram" node.