Why is our Vercel preview deployment failing on specific dynamic API routes while working perfectly in local development and how do we debug it?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Why is our Vercel preview deployment failing on specific dynamic API routes while working perfectly in local development and how do we debug it?
1 real search · 1 real-search pass
Vercel documentation preview deployment environment variables dynamic routes functions logs Node.js runtime troubleshooting Next.js API routesGoogle ↗
OBSERVEDInstruction
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
Vercel documentation preview deployment environment variables dynamic routes functions logs Node.js runtime troubleshooting Next.js API routes Google ↗
- Environments · vercel.com
- Environment variables · vercel.com
- How do I add environment variables to my Vercel project? · vercel.com
- Deploying a project from the CLI · vercel.com
- Add structured application logs to Vercel Functions · vercel.com