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Eliminating Broken LLM JSON in Production Workflows (Node.js, FastAPI & n8n Strict Schemas)

This story is from 2026-10-30. It is preserved in the archive; the latest stories are on the live feed.

If you have ever wired an LLM into a CRM, billing webhook, or database ingestion workflow, you have probably met the 2:00 AM SyntaxError: Unexpected end of JSON input alert. At 10 test runs on your laptop, telling a model "Respond ONLY with valid JSON, no markdown fences" feels like it works. At 10…

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  1. 2026-10-30 03:35 · DEV Community — AI
    Eliminating Broken LLM JSON in Production Workflows (Node.js, FastAPI & n8n Strict Schemas)

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