A CLI for a supplier portal built for clicks
A public command-line tool lists and downloads Hamberger supplier PDFs with OIDC login, secure token caching, filters, ZIP export, and safe re-runs.
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The gap
Supplier invoices lived behind a customer portal designed for interactive clicks. Downloading a month of PDFs was routine work, but browser automation would have been fragile and storing a password would have been the wrong security model.
The tool
hamberger-dl is a public CLI that uses OpenID Connect, caches tokens securely, and works against the portal’s API. It can list documents, filter by date or type, download PDFs, and package a batch as a ZIP.
Operational design
The command is safe to run again. Existing files are skipped instead of downloaded again, so an interrupted batch can resume without human bookkeeping. That behavior makes it useful as both a direct operator tool and a dependable upstream step for document-processing workflows.
The repository is public. The downstream accounting configuration is intentionally not: it contains private financial records and vendor-specific integration details.
