[benaminyork-cloud]

Summary

Supporting code for the Elasticsearch Labs article From scanned PDF to cited answer in under 5 minutes: Jina OCR v1 and hybrid RAG on Elasticsearch (Labs ticket: ).

A Texas native plant storefront (React + Vite, Express backend) extended with document intelligence:

• Upload a scanned PDF or image; the server renders pages and sends each to the preconfigured .jina-ocr-v1-chat_completion endpoint on Elastic Inference Service, streaming progress (and the first extracted table) back to the browser over SSE.
• Each document lands in its own hybrid-mapped index (text + copy_to into semantic_text), so chunking and embedding happen at ingest with no embedding code.
• A chat widget runs hybrid retrieval (RRF over lexical + semantic) across uploaded documents and the product catalog, and answers through Claude 4.5 Haiku on EIS with page citations and catalog product recommendations.
• Full-text vs hybrid vs side-by-side Compare modes for the catalog search.

Location

supporting-blog-content/jina-ocr-v1-hybrid-rag-elasticsearch/

Running it

cd supporting-blog-content/jina-ocr-v1-hybrid-rag-elasticsearch
npm install
cp .env.example .env     # set ELASTICSEARCH_URL and ELASTICSEARCH_API_KEY
npm run seed             # 48-product catalog
npm run server        
npm run dev           

Requires Node.js 20+ and an Elastic Cloud Serverless project (tested on a Vector Database project) with jina-ocr-v1 and Claude 4.5 Haiku available on EIS.

Notes for reviewers

• .env.example is the only env file; .env is gitignored and no secrets are committed.
• The sample document (Native and Adapted Landscape Plants, City of Austin / Texas AgriLife) is linked from the README rather than committed, as it is a third-party publication.
• Product images are public domain / CC0 Wikimedia Commons files.
• Committed with --no-verify because the local pre-commit black hook requires Python 3.10+; the folder contains no Python, so CI checks are the authoritative pass.

[gitnotebooks]

Review these changes at https://app.gitnotebooks.com/elastic/elastic-labs/pull/607