Carlos Garcia ec6b41943f fix: vision OCR JSON failures — add format='json' and repair fallback ...

Three receipts per batch were failing with JSONDecodeError (e.g.
"Expecting ':' delimiter: line 1 column 90") because activeblue-chat
(llama3.2-vision) occasionally outputs near-JSON with trailing commas,
single-quoted strings, or unquoted keys.

Two-layer fix:
1. Add format='json' to the Ollama chat call — Ollama JSON mode forces
   syntactically valid output at the sampler level, eliminating most
   structural errors.
2. Add _repair_json() fallback that runs on any remaining JSONDecodeError:
   strips trailing commas, converts single→double quotes, and quotes
   unquoted keys. If repair succeeds, the result is re-serialised as
   canonical JSON before being returned.

Also re-serialise with json.dumps() on success so the fast path in
_parse_receipt_text always receives clean, canonical JSON regardless of
whitespace or key ordering in the model's original output.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-20 22:24:50 -04:00

11 KiB

Raw Blame History

View Raw