Session 0006: SSE Streaming Backup & Upload Endpoints

Date: 2026-02-22 Status: Completed Origin: MDF Webseiten session 0036

Work Done

• [x] Added upload subcommand to offsite.py CLI (function existed but wasn't wired)
• [x] Converted create_backup endpoint from plain JSON to SSE streaming
• [x] Converted upload_offsite endpoint from plain JSON to SSE streaming
• [x] Changed both endpoints to accept GET+POST (EventSource API requires GET)

Key Decisions / Learnings

• EventSource (SSE) requires GET requests — endpoints serving streaming output must accept GET
• Converting to SSE streaming gives real-time feedback for long-running backup and upload operations
• offsite.py had an upload function but it was never exposed as a CLI subcommand — easy fix, high value

Tags: #Session #OpsDashboard #Backups #SSE