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[SEA-NodeJS] (2/8) napi-rs binding consumer — TS loader + build script#380

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[SEA-NodeJS] (2/8) napi-rs binding consumer — TS loader + build script#380
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@msrathore-db msrathore-db commented May 16, 2026 •
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Stack

Linear stack of 8 PRs landing the M0 + M1 Phase 1 SEA NodeJS work. Merge in order from base ↑ to tip. The tip branch (msrathore/sea-auth-u2m, PR #383) is the single snapshot containing everything in flight — point your test or benchmark harness at it for an end-to-end check.

Pos PR Branch Scope
1/8 #378 sea-abstraction IBackend / ISessionBackend / IOperationBackend interfaces
2/8 #380 sea-napi-binding TS loader + build script for the kernel-provided .node artifact
3/8 #377 sea-errors-logging Kernel ErrorCode → JS error-class mapping (M0 minimum)
4/8 #379 sea-auth PAT auth via useSEA: true
5/8 #382 sea-execution executeStatement + openSession (sessionConfig, initialCatalog/Schema)
6/8 #381 sea-results CloudFetch + Inline Arrow result fetching
7/8 #384 sea-operation cancel / close / finished lifecycle + INTERVAL parity + napi-relocation acceptance (absorbed sea-integration content)
8/8 #383 sea-auth-u2m ← TIP M1 Phase 1 OAuth M2M + U2M (5 review rounds, ZERO HIGH at close)

Companion kernel stack (databricks/databricks-sql-kernel): 8 PRs — root #26 (async-public-api) → #27 → #25 → #29 → #28 → #30 → #24 → #23 (tip).

Policy: new PRs always stack on the current tip. No sibling/parallel topology. No force-pushes on existing PRs unless absolutely necessary; if a PR's content is wrong, add a fix-up commit on top of the stack tip rather than rewriting history.

This PR is position 2/8.

Summary

Thin TypeScript loader for the napi-rs binding (SeaNativeLoader), generated native/sea/index.d.ts, and the build:native npm script that compiles against the kernel workspace's napi/ sub-crate.

Companion kernel PR

The Rust napi crate itself lives in the kernel repo — see databricks/databricks-sql-kernel#25 (Database / Connection / Statement / ResultStream classes) and its skeleton predecessor #27.

Test plan

  • ✅ npm run build:native produces native/sea/index.linux-x64-gnu.node
  • ✅ Loader correctly require()s the platform-specific binary

Draft until you give the go for review.

Co-authored-by: Isaac

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github-actions Bot commented May 16, 2026

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

@msrathore-db msrathore-db force-pushed the msrathore/sea-napi-binding branch from 84d0860 to 20231c8 Compare May 17, 2026 13:22
@msrathore-db msrathore-db changed the base branch from main to msrathore/sea-abstraction May 17, 2026 13:22
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github-actions Bot commented May 17, 2026

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

@msrathore-db msrathore-db mentioned this pull request May 17, 2026
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@msrathore-db msrathore-db changed the title [SEA-NodeJS] (2/9) napi-rs binding consumer — TS loader + build script [SEA-NodeJS] (2/8) napi-rs binding consumer — TS loader + build script May 17, 2026
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@msrathore-db msrathore-db force-pushed the msrathore/sea-napi-binding branch from 20231c8 to 2f1865b Compare May 24, 2026 21:58
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Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

msrathore-db added a commit that referenced this pull request May 24, 2026
@msrathore-db
sea-napi-binding: review round 2 — lint, publish, lazy-load, tests
6b70ce4 
Addresses PR #380 review findings C1, C2 (partial), C3, H1, H2, H3,
H4, H5, H6, H7, H8 (runtime guard), H9, M1, M2, M3, M4 (linguist),
M5, M6, M7, M8, L1, L2, L4.

- C1 lint: drop `.js` ext from native/sea require so eslint
  import/extensions passes; gitignore the auto-generated index.js
  and *.node artifacts; prettier-ignore the napi-rs auto-generated
  index.d.ts / index.js.
- C2 publish: whitelist native/sea/index.{js,d.ts} in .npmignore;
  declare @databricks/sea-native-linux-x64-gnu in optionalDependencies.
  The kernel-side package-name rename (drop the linux-x64-gnu
  prefix) is tracked separately as a cross-PR ask.
- C3 test wiring: move tests/native/version.test.ts ->
  tests/unit/sea/, tests/native/e2e-smoke.test.ts -> tests/e2e/sea/;
  both now picked up by the existing mocharc globs and run via the
  existing `npm test` / `npm run e2e` jobs.
- H1 noise drop: version.test.ts now asserts one meaningful semver
  check; three tautological assertions removed.
- H2 + H3 + H7 lazy load: rewrite SeaNativeLoader.ts on the
  lib/utils/lz4.ts pattern. Lazy require behind getSeaNative();
  capability-detection helper tryGetSeaNative(); structured error
  messages that classify MODULE_NOT_FOUND vs ERR_DLOPEN_FAILED and
  include platform/arch/Node-version + install hint.
- H4 supply chain: pin @napi-rs/cli to 2.18.4 in devDependencies;
  build:native switches to `npx --no-install` so the pinned local
  install is used (no per-build network fetch).
- H5 path: switch build:native default kernel path to the canonical
  `../../databricks-sql-kernel/napi-binding` (the worktree-specific
  `-sea-WT` suffix is gone).
- H6 CI safety: e2e suite hard-fails when CI=true and any required
  env var is missing; dev machines still skip.
- H8 runtime guard: loader throws a structured error on Node <18
  instead of attempting a dlopen that would fail mysteriously.
  Driver's engines.node stays >=14 — Thrift consumers on older
  Node continue to work.
- H9 + M1 + M2 types: tsconfig adds a `@sea-native` path alias to
  native/sea/index.d.ts; loader imports the real Connection /
  Statement / ConnectionOptions / ExecuteOptions / ArrowBatch /
  ArrowSchema types and re-exports them. Tests use the re-exported
  types — the inline-shape duplication across three files collapses.
- M3 README: rewrite native/sea/README.md to match kernel reality.
  The napi crate is a standalone Cargo workspace (not a pyo3
  sibling); explain the tls-rustls choice that the standalone
  workspace exists to enable.
- M4 drift detection: mark native/sea/index.d.ts as
  linguist-generated in .gitattributes so GitHub collapses it in
  diffs and excludes from blame/language stats.
- M5 artifacts: gitignore native/sea/index.js, index.node,
  index.*.node.
- M6 + M7 e2e coverage: decode the IPC payload via apache-arrow's
  tableFromIPC and assert numRows + cell value (not just shape);
  add drain-past-null idempotence and schema-before-fetch
  coverage.
- L1 build scripts: collapse build:native + build:native:debug
  into one script taking BUILD_PROFILE (defaults to --release).
- L2 / L4 / M8: drop the version() alias and the "Round 2+ will…"
  comment debt; the loader now actually delivers the value the
  prior JSDoc was only promising.

Verified on this branch: npm run lint clean (0 errors); npm run
prettier clean for PR-owned files (3 unrelated pre-existing
warnings on PR #378 territory); tsc --project tsconfig.build.json
clean; mocha on tests/unit/sea passes (4/4); mocha on
tests/e2e/sea passes against a live pecotesting warehouse (2/2,
IPC decode confirms SELECT 1 returns 1).
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Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

@msrathore-db
sea-napi-binding: scaffold native/sea/ crate with version() smoke test
e78ed27 
Creates the napi-rs binding skeleton: Cargo.toml + lib.rs + module
stubs for database/connection/statement/result/error/logger. Captures
napi-rs tokio Handle via OnceCell in runtime.rs. Single working
#[napi] fn version() proves the binding loads + executes end-to-end
in Node.

Depends on krn-async-public-api branch (path dep on kernel).

Round 2 will add open/execute/fetch methods.

Signed-off-by: Madhavendra Rathore <madhavendra.rathore@databricks.com>
@msrathore-db
sea-napi-binding: Database/Connection/Statement/ResultStream methods …
c8211be 
…wired

Adds real async methods on the opaque wrappers backing M0:
- openSession (free function) with PAT → kernel Session
- Connection::execute_statement → kernel ExecutedStatement
- Statement::fetch_next_batch / schema / cancel / close → kernel ResultStream
- Arrow batches returned as IPC bytes (per Layer 2 design)
- Error mapping preserves kernel ErrorCode + SQLSTATE for TS layer
- All entry points wrapped in catch_unwind

End-to-end smoke test against pecotesting passes.
No new dependencies beyond arrow-{ipc,array,schema} + futures.
Uses kernel async public API (no block_on).

Co-authored-by: Isaac
Signed-off-by: Madhavendra Rathore <madhavendra.rathore@databricks.com>
@msrathore-db
sea-napi-binding: cleanup — drop unused tracing deps; address bloat f…
04728b7 
…indings

Round 1 scaffold declared tracing + tracing-subscriber as deps but
never used them. Removed. Logger bridge will re-add in round 3.

Other findings from 6b3affd-2026-05-15.md reviewed:
- Finding 2 (Database::Drop unreachable in Round 1b) — obsoleted by
  Round 2 (40d0b57): database.rs no longer declares a Database struct
  or Drop impl; it is now an `open_session` free function.
- Finding 3 (empty Connection::Drop) — obsoleted by Round 2: the Drop
  impl now spawns a real fire-and-forget close on the captured tokio
  handle.

Co-authored-by: Isaac
Signed-off-by: Madhavendra Rathore <madhavendra.rathore@databricks.com>
@msrathore-db
sea-napi-binding: relocate Rust source to kernel workspace
ee7e82e 
Per D-006 architectural decision (Python team's workspace pattern):
all language bindings (PyO3, napi-rs) now live as workspace siblings
in the kernel repo at databricks-sql-kernel/{pyo3,napi}/.

What this commit removes from the nodejs repo:
- native/sea/Cargo.toml (path dep relocated; package now at
  databricks-sql-kernel/napi/Cargo.toml with path = "..")
- native/sea/build.rs
- native/sea/src/* (lib, runtime, database, connection, statement,
  result, error, logger, util — all 9 files)
- native/sea/package.json (the @databricks/sea-native-linux-x64-gnu
  sub-package moves to the kernel workspace too)
- native/sea/index.js (regenerated artifact)

What stays in nodejs:
- native/sea/index.d.ts — TS declarations consumed by lib/sea/ adapter
- native/sea/README.md (new) — explains the move; points readers at
  databricks-sql-kernel/napi/

What's updated:
- package.json: `build:native` and `build:native:debug` scripts now
  delegate to the kernel workspace via $DATABRICKS_SQL_KERNEL_REPO
  (defaults to ../../databricks-sql-kernel-sea-WT/napi-binding for the
  local dev worktree layout). Build copies index.node + index.d.ts
  back into native/sea/ for the loader to find.

Why workspace co-location:
- Arrow version pinning lockstep — no silent IPC version drift
- path = ".." (clean) vs ../../../../databricks-sql-kernel-sea-WT/...
- Single CI: cargo build --workspace covers kernel + pyo3 + napi
- Kernel API changes that break either binding caught at PR-review time
- Future cgo binding for Go SEA slots in as another workspace member

This branch (sea-napi-binding) is now a thin consumer of the kernel
napi crate. The actual Rust code lives at krn-napi-binding HEAD on
the kernel repo (commit debe3d7).

Signed-off-by: Madhavendra Rathore <madhavendra.rathore@databricks.com>
@msrathore-db
sea-napi-binding: build:native uses --platform so index.js router is …
01f31cd 
…generated

Signed-off-by: Madhavendra Rathore <madhavendra.rathore@databricks.com>
@msrathore-db
sea-napi-binding: review round 2 — lint, publish, lazy-load, tests
548a14b 
Addresses PR #380 review findings C1, C2 (partial), C3, H1, H2, H3,
H4, H5, H6, H7, H8 (runtime guard), H9, M1, M2, M3, M4 (linguist),
M5, M6, M7, M8, L1, L2, L4.

- C1 lint: drop `.js` ext from native/sea require so eslint
  import/extensions passes; gitignore the auto-generated index.js
  and *.node artifacts; prettier-ignore the napi-rs auto-generated
  index.d.ts / index.js.
- C2 publish: whitelist native/sea/index.{js,d.ts} in .npmignore;
  declare @databricks/sea-native-linux-x64-gnu in optionalDependencies.
  The kernel-side package-name rename (drop the linux-x64-gnu
  prefix) is tracked separately as a cross-PR ask.
- C3 test wiring: move tests/native/version.test.ts ->
  tests/unit/sea/, tests/native/e2e-smoke.test.ts -> tests/e2e/sea/;
  both now picked up by the existing mocharc globs and run via the
  existing `npm test` / `npm run e2e` jobs.
- H1 noise drop: version.test.ts now asserts one meaningful semver
  check; three tautological assertions removed.
- H2 + H3 + H7 lazy load: rewrite SeaNativeLoader.ts on the
  lib/utils/lz4.ts pattern. Lazy require behind getSeaNative();
  capability-detection helper tryGetSeaNative(); structured error
  messages that classify MODULE_NOT_FOUND vs ERR_DLOPEN_FAILED and
  include platform/arch/Node-version + install hint.
- H4 supply chain: pin @napi-rs/cli to 2.18.4 in devDependencies;
  build:native switches to `npx --no-install` so the pinned local
  install is used (no per-build network fetch).
- H5 path: switch build:native default kernel path to the canonical
  `../../databricks-sql-kernel/napi-binding` (the worktree-specific
  `-sea-WT` suffix is gone).
- H6 CI safety: e2e suite hard-fails when CI=true and any required
  env var is missing; dev machines still skip.
- H8 runtime guard: loader throws a structured error on Node <18
  instead of attempting a dlopen that would fail mysteriously.
  Driver's engines.node stays >=14 — Thrift consumers on older
  Node continue to work.
- H9 + M1 + M2 types: tsconfig adds a `@sea-native` path alias to
  native/sea/index.d.ts; loader imports the real Connection /
  Statement / ConnectionOptions / ExecuteOptions / ArrowBatch /
  ArrowSchema types and re-exports them. Tests use the re-exported
  types — the inline-shape duplication across three files collapses.
- M3 README: rewrite native/sea/README.md to match kernel reality.
  The napi crate is a standalone Cargo workspace (not a pyo3
  sibling); explain the tls-rustls choice that the standalone
  workspace exists to enable.
- M4 drift detection: mark native/sea/index.d.ts as
  linguist-generated in .gitattributes so GitHub collapses it in
  diffs and excludes from blame/language stats.
- M5 artifacts: gitignore native/sea/index.js, index.node,
  index.*.node.
- M6 + M7 e2e coverage: decode the IPC payload via apache-arrow's
  tableFromIPC and assert numRows + cell value (not just shape);
  add drain-past-null idempotence and schema-before-fetch
  coverage.
- L1 build scripts: collapse build:native + build:native:debug
  into one script taking BUILD_PROFILE (defaults to --release).
- L2 / L4 / M8: drop the version() alias and the "Round 2+ will…"
  comment debt; the loader now actually delivers the value the
  prior JSDoc was only promising.

Verified on this branch: npm run lint clean (0 errors); npm run
prettier clean for PR-owned files (3 unrelated pre-existing
warnings on PR #378 territory); tsc --project tsconfig.build.json
clean; mocha on tests/unit/sea passes (4/4); mocha on
tests/e2e/sea passes against a live pecotesting warehouse (2/2,
IPC decode confirms SELECT 1 returns 1).

Signed-off-by: Madhavendra Rathore <madhavendra.rathore@databricks.com>
@msrathore-db msrathore-db force-pushed the msrathore/sea-napi-binding branch from 6b70ce4 to 548a14b Compare May 24, 2026 23:23
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