How can I configure the OneDrive trigger to download only one file per trigger?

Below is an approach to achieve this using n8n:

1. Trigger Node
   Use the Microsoft OneDrive Trigger node to watch for events (e.g., On File Created or On File Updated). This node will trigger your workflow whenever a new or updated file occurs.

2. Download the File
   The OneDrive Trigger node only detects events and doesn’t perform any file operations such as downloading. To download the file, add a Microsoft OneDrive node (separate from the trigger node) to your workflow and configure it with the “Download a file” operation.

3. Passing the File Data
   Use the output from the trigger node (which typically includes the file ID or path) as input to the download node. You can access the file identifier using an expression (for example, {{ $json.id }}) so that the download node knows which file to retrieve.

This setup is analogous to how similar functionality is achieved with the Outlook or Google Drive Trigger nodes. The key difference is that, in OneDrive’s case, you’ll need to combine the trigger with a separate file operation node since the trigger itself doesn’t handle file downloads.

If you need further clarification on how to configure either node or set up the expression for passing data, please let me know!