[SEA-NodeJS] (3/9) Kernel ErrorCode → JS error-class mapping (M0 minimum)#377
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[SEA-NodeJS] (3/9) Kernel ErrorCode → JS error-class mapping (M0 minimum)#377msrathore-db wants to merge 1 commit into
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Single mapping function in lib/sea/SeaErrorMapping.ts converts the napi-binding's surfaced kernel error (code+message+sqlstate) to the appropriate existing JS error class. M0 minimum: PAT auth errors land as AuthenticationError; cancel/timeout as OperationStateError; network/internal as HiveDriverError. SQLSTATE preserved on the error object via .sqlState property. No new error classes. M1 may add nuance.
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Summary
`SeaErrorMapping.ts` decodes the kernel's `databricks_error:` napi error envelope into typed JS errors (`AuthenticationError`, `NetworkError`, `OperationStateError`, etc.). M0-minimum mapping covers 13 kernel `ErrorCode` variants.
Stack position
PR 3/9. The decoder gets significantly hardened in PR 9/9 (auth-u2m) — namespace under `error.kernelMetadata.*`, sentinel-strip on corrupted envelopes, etc. — but the M0 baseline is here.