Generates QR code images for short links.
QR codes encode {scheme}://{domain}{path_prefix}/{key}?qr=1 so that
scans are detectable in the redirect flow. Rendered images are cached in
Nebulex to avoid redundant generation.
Summary
Functions
Generates a QR code image for the given domain and key.
Functions
Generates a QR code image for the given domain and key.
Returns {:ok, binary} on success or {:error, reason} on failure.
Checks the cache first; on miss, verifies the link exists in the DB.
Options
:format-:svg(default) or:png:size- scale factor, 1..50 (default 10):fg- foreground color as 6-char hex string (default "000000"):bg- background color as 6-char hex string (default "ffffff"):ec- error correction level: "low", "medium", "quartile", "high" (default "low"):path_prefix- short-link mount path prefix (defaultconfig :good_analytics, :link_path_prefixor"")