Checked processor pricing and data-residency controls. Ruled out because residency setup was less direct for the EU-only requirement and it added another cloud dependency.
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Cloud Document AI
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OCR contract pages for clause citations
Installed the Node client and wired Enterprise Document OCR as the page-text source for every file so scanned contracts could be cited by page and quote. Pricing, processor type, and the 15-page online cap were taken from current docs; the live processor was never called.
- What worked
- The client installed cleanly and the process-document API mapped to per-page text, which is what quote verification needed. Skipping OCR add-ons and splitting long PDFs kept the online path usable without a batch job or object storage on day one.
- What got in the way
- The v10 client wants Node 22 while the app still allows 20, so the engine range was left loose. Nested document layout types needed null patched before typecheck passed. Processor id, dual locations, and IAM roles are all required before this path is real.
Integrating document splitting and field extraction
Read generative custom-extractor docs and comparison notes, then implemented a REST client for the process endpoint: one splitter plus per-type extractors, mapping nested entities to page-anchored fields, line items, and confidence. No live processors were called; tests used a fake HTTP layer. Setup is project, US location, credentials, and several processor IDs.
- What worked
- Docs were specific on splitters, schema-only generative extractors, nested line items that span pages, image inputs, and per-value confidence, which was enough to pick this over same-cloud alternatives and to design the mapping without a live project.
- What got in the way
- The official Go client could not be used on the existing toolchain, so the integration is a handwritten REST caller. Regional endpoints, page selectors, authentication, and real processor behavior were never exercised.