feat(cli): serve the pre-warmed runtime over uipath-ipc alongside HTTP [ROBO-5779] by eduard-dumitru · Pull Request #1809 · UiPath/uipath-python

eduard-dumitru · 2026-07-13T12:09:27Z

Adds a uipath-ipc named-pipe transport to uipath server, served alongside the existing HTTP-over-socket path (ROBO-5779).

What

uipath server serves both channels concurrently: HTTP (aiohttp over a Unix socket, or TCP on Windows) and — when --server-socket is given — a uipath-ipc named pipe. HTTP is never torn down; the IPC pipe name is the socket's basename, so the executor spawns the server the same way regardless of channel.
IPC hosts IPythonRuntimeServer (StartJob / StopJob) via NamedPipeServerTransport; both edges run jobs through one env/cwd-isolated core (_run_command_isolated).
Contract DTOs are typed dataclasses (PythonRunRequest / PythonRunResult) mirroring the .NET side. StopJob returns a bool so CoreIPC treats it as request/response, not fire-and-forget — cancellation itself is a no-op for now (Phase 1).
Adds uipath-ipc>=2.5.1 (internal Azure Artifacts feed for now — see the pyproject note; a public-PyPI uipath-ipc release is a prerequisite for a public pip install uipath).
Tests: test_server_ipc.py (IPC server) and test_server_transport.py (channel composition / _run_server arg resolution / CLI wiring).

Notes

Which transport a given job uses is decided on the .NET Handler side (the PythonRuntimePreferIpc FPS feature flag, Low-Code only) — separate PR in UiPath/hdens.
Rebased onto current main; pending green CI (cross-tests + Sonar) before ready.

🤖 Generated with Claude Code

…P [ROBO-5779] `uipath server` serves an HTTP channel and, when --server-socket is given, a uipath-ipc named-pipe channel concurrently — both behind one env/cwd-isolated job core. Adds the IPythonRuntimeServer contract (StartJob/StopJob) with typed PythonRunRequest/PythonRunResult dataclasses mirroring the .NET side, plus tests. Adds uipath-ipc as a dependency. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

…OBO-5779] Move the wire-dictated PascalCase surface (PythonRunRequest/PythonRunResult, IPythonRuntimeServer, PythonRuntimeService, start_ipc_server) out of cli_server into cli_server_ipc, re-exported for backward compatibility. Scopes the Sonar S100/S116 suppression to that single file so the rest of the tree stays strict. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Cover the missing/empty-Command rejection and the StopJob bool ack over the uipath-ipc channel, taking cli_server_ipc to full new-code coverage. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

- Sonar: use resourceKey (not resourcePath) for the multicriteria issue ignore. - version: bump uipath 2.13.13 -> 2.13.14 (2.13.13 already on PyPI). - mypy: parametrize dict annotations in the server tests; ignore [type-abstract] on get_proxy(IPythonRuntimeServer) (proxying an interface is intended). - ruff: wrap over-long lines to the 88-col format. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

github-actions · 2026-07-23T08:59:10Z

🚨 Heads up: `uipath-langchain` cross-tests are FAILING 🚨

Your changes may break the uipath-langchain-python integration.

⚠️ These checks are NOT enforced by branch protection rules. Please review the failures before merging.

🔍 Inspect the failed run →

Add direct unit tests for _run_command_isolated's error paths (uninitialized state, bad working directory, SystemExit exit-code mapping, unexpected exception), lifting new-code coverage over the SonarCloud 90% gate. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Copilot

Pull request overview

Adds a uipath-ipc named-pipe transport to uipath server, served concurrently with the existing HTTP transport, and refactors shared job execution into a single core path used by both transports.

Changes:

Introduces an IPC contract/service (IPythonRuntimeServer, DTOs, start_ipc_server) and runs it alongside the HTTP server when --server-socket is provided.
Extracts shared job execution into _run_command_isolated and routes HTTP /start through it.
Adds unit/integration tests covering transport composition, IPC behavior, and job-core error branches; updates packaging/sonar config for the new IPC module.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
sonar-project.properties	Suppresses Sonar naming rules for PascalCase IPC contract/DTOs in `cli_server_ipc.py` only.
packages/uipath/uv.lock	Bumps `uipath` version and locks `uipath-ipc` dependency from internal feed.
packages/uipath/tests/cli/test_server_transport.py	Verifies `_serve` composes HTTP+IPC correctly and CLI wires args through.
packages/uipath/tests/cli/test_server_job_core.py	Unit tests for `_run_command_isolated` error/edge branches.
packages/uipath/tests/cli/test_server_ipc.py	IPC server tests (StartJob/StopJob + env isolation).
packages/uipath/src/uipath/_cli/cli_server.py	Adds IPC integration, shared job core, and updates HTTP handler to use it.
packages/uipath/src/uipath/_cli/cli_server_ipc.py	New IPC contract/DTOs/service and server bootstrap.
packages/uipath/pyproject.toml	Adds `uipath-ipc` to project dependencies and configures uv index pinning.

Comments suppressed due to low confidence (1)

packages/uipath/src/uipath/_cli/cli_server.py:292

When _run_command_isolated reports a request-shaped failure (e.g., invalid working directory), the HTTP response should keep a 4xx status instead of always defaulting to 200 for any nonzero ExitCode.

    return web.json_response(
        {"success": False, "job_key": job_key, "error": result["Error"]}
    )

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+                    return {
+                        "ExitCode": 1,
+                        "Error": f"Cannot change to working directory: {e}",
+                        "Result": None,
+                        "Unexpected": False,
+                    }


+
+    JobKey: str = ""
+    Command: str = ""
+    Args: str | None = None


  "uipath-core>=0.5.30, <0.6.0",
  "uipath-runtime>=0.12.2, <0.13.0",
  "uipath-platform>=0.2.4, <0.3.0",
+  "uipath-ipc>=2.5.1",


+    thread = threading.Thread(target=run_server, daemon=True)
+    thread.start()
+    time.sleep(0.5)


sonarqubecloud · 2026-07-23T09:03:25Z

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
92.2% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

radu-mocanu

Blocking: public install is broken

Please remove uipath-ipc from the required uipath dependencies, or publish it to public PyPI before merging. The PR note says the package currently resolves only from the internal Azure feed. That uv configuration is not included in the published wheel, so public pip install uipath cannot resolve this required dependency.

Also bound the runtime dependency’s minor version when it is released publicly, for example uipath-ipc>=2.5.1,<2.6.0, to protect consumers from incompatible minor releases.

github-actions Bot added test:uipath-langchain Triggers tests in the uipath-langchain-python repository test:uipath-runtime test:uipath-integrations labels Jul 13, 2026

eduard-dumitru force-pushed the feat/ROBO-5779-server-ipc-transport branch from 72b8383 to 952d047 Compare July 21, 2026 11:08

eduard-dumitru changed the title ~~feat(cli): add opt-in uipath-ipc transport to uipath server [ROBO-5779]~~ feat(cli): serve the pre-warmed runtime over uipath-ipc alongside HTTP [ROBO-5779] Jul 21, 2026

eduard-dumitru force-pushed the feat/ROBO-5779-server-ipc-transport branch 2 times, most recently from 832a0f2 to a641162 Compare July 22, 2026 10:27

eduard-dumitru and others added 4 commits July 23, 2026 10:27

test(cli): add IPC StopJob and missing-Command coverage [ROBO-5779]

e29b176

Cover the missing/empty-Command rejection and the StopJob bool ack over the uipath-ipc channel, taking cli_server_ipc to full new-code coverage. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

eduard-dumitru force-pushed the feat/ROBO-5779-server-ipc-transport branch from c3a6d7d to 7e8f4fb Compare July 23, 2026 08:49

eduard-dumitru requested a review from robert-ursu July 23, 2026 08:57

eduard-dumitru marked this pull request as ready for review July 23, 2026 08:58

Copilot AI review requested due to automatic review settings July 23, 2026 08:58

Copilot started reviewing on behalf of eduard-dumitru July 23, 2026 08:58 View session

eduard-dumitru force-pushed the feat/ROBO-5779-server-ipc-transport branch from 7e8f4fb to f8eff08 Compare July 23, 2026 09:00

Copilot AI reviewed Jul 23, 2026

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feat(cli): serve the pre-warmed runtime over uipath-ipc alongside HTTP [ROBO-5779]#1809

feat(cli): serve the pre-warmed runtime over uipath-ipc alongside HTTP [ROBO-5779]#1809
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eduard-dumitru commented Jul 13, 2026 •

edited

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eduard-dumitru commented Jul 13, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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github-actions Bot commented Jul 23, 2026

🚨 Heads up: uipath-langchain cross-tests are FAILING 🚨

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sonarqubecloud Bot commented Jul 23, 2026

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eduard-dumitru commented Jul 13, 2026 •

edited

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🚨 Heads up: `uipath-langchain` cross-tests are FAILING 🚨