feat(dpi_ng/consent): add Data Privacy Integration NextGen Consent service integration to sdk

[Ashwith-N]

Disclaimer: Do not include SAP-internal or customer-specific information in this PR (e.g. internal system URLs, customer names, tenant IDs, or confidential configurations). This is a public repository.

Description

To introduce the sap_cloud_sdk.core.dpi_ng.consent capability to the SAP Cloud SDK for Python. It provides a unified API for managing consents, purposes, templates, retention rules, and configuration reference data exposed by the DPI NextGen Consent Repository OData V4 service.

Key components included:

• Client Factory: A public create_client() function with a typed ConsentClient API
• Authentication strategies: BearerTokenAuth, ClientCredentialsAuth, and ClientCertificateAuth (mTLS)
• Request/Result Models: Typed DTOs for consent operations
• Service layer: Five service attributes (consents, purposes, templates, retention, configuration) each covering full CRUD and lifecycle operations against the respective OData endpoints.
• Exception hierarchy: DPINGError base with typed subclasses for 401, 403, 400/422, 404, 409, and other OData errors.
• Documentation: Module guidance in user-guide.md.
• Test coverage: Unit tests and BDD integration tests under tests/core/unit/dpi_ng and tests/core/integration/dpi_ng/consent

Related Issue

No pre-existing issue - this is a new feature contribution.

Type of Change

Please check the relevant option:

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Code refactoring
• Dependency update

How to Test

1. Install dependencies: uv sync --all-extras
2. Configure credentials per docs/INTEGRATION_TESTS.md
3. Run unit tests: uv run pytest tests/core/unit/dpi_ng/ -v
4. Run integration tests: uv run pytest tests/core/integration/dpi_ng/consent/ -v
5. Expected result: all tests pass

Checklist

Before submitting your PR, please review and check the following:

• I have read the Contributing Guidelines
• I have verified that my changes solve the issue
• I have added/updated automated tests to cover my changes
• All tests pass locally
• I have verified that my code follows the Code Guidelines
• I have updated documentation (if applicable)
• I have added type hints for all public APIs
• My code does not contain sensitive information (credentials, tokens, etc.)
• I have followed Conventional Commits for commit messages

Breaking Changes

If this PR introduces breaking changes, please describe:

• What breaks
  None.
• Migration path for users
  No migration required.
• Alternative approaches considered
  N/A

Additional Notes

This feature follows the existing SDK module structure described in CONTRIBUTING.md and aligns with the integration test setup documented in INTEGRATION_TESTS.md. It is intended as an additive capability and does not change existing public APIs.

AI-assisted code: The logger.info("Invoked …") / logger.info("Exiting …") instrumentation lines throughout the dpi_ng module were written with the assistance of Claude (Anthropic). Disclosure per the SAP AI contribution guideline.

Dependency note: python-odata>=0.7.0 was added as a runtime dependency. The package was checked against the OSV vulnerability database prior to inclusion - no known CVEs found as of the time of this PR.

[cla-assistant]

All committers have signed the CLA.

[Ashwith-N]

PR Review: #199 feat(dpi_ng/consent): add Data Privacy Integration NextGen Consent service integration to sdk

Author: Ashwith-N   Branch: Ashwith-N:main → SAP:main
Verdict: ⚠️ Needs Minor Work
Summary: A comprehensive, well-structured new module that passes all CI checks; three structural/process gaps need addressing before merge.

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A: Process & Compliance

#	Criterion	Status	Finding
A1	PR template complete	✅	All sections filled; all 9 checklist items ticked; 3 type boxes checked; 5-step How to Test present
A2	Conventional Commits	✅	32 commits all match type(scope): description; one commit (chore: bump version to 0.29.0...) omits the scope but is valid per CC spec and passes Commit Validation CI
A3	Issue linked	⚠️	PR body says "N/A" — no Closes #N/Fixes #N/Resolves #N. Acceptable for a brand-new feature with no pre-existing issue, but the template requires an explicit reference
A4	AI-generated code disclosure	⚠️	Every method in dpi_ng source files carries logger.info("Invoked X.__init__") / logger.info("Exiting X.__init__") entry/exit traces that are absent from every other module in the repo — a strong signal of AI-assisted generation. No disclosure in PR description as required by the SAP AI contribution guideline. If AI tooling was used, a disclosure sentence is required.

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B: Security & Sensitive Data

#	Criterion	Status	Finding
B1	No sensitive data in code	✅	All URLs are placeholder-form; no real credentials, tenant IDs, or customer identifiers
B2	No sensitive data in PR body	✅	PR body uses only generic placeholder references

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C: Code Quality

#	Criterion	Status	Finding
C1	CI checks passing	✅	All 8 required checks pass: Code Quality Checks, Tests & Coverage, Build & Package, Commit Validation, Check Version Bump, Analyze (python), CodeQL, REUSE Compliance Check
C2	Version bump	✅	src/ files changed → pyproject.toml bumped 0.35.0 → 0.36.0
C3	Type hints	✅	Full annotations on all public functions/methods; py.typed present at src/sap_cloud_sdk/core/dpi_ng/consent/py.typed
C4	No hardcoded values	✅	Service path defined as a dataclass field default in consent/config.py, not inline
C5	Import organization	⚠️	ConsentClient.__init__ uses a lazy import (from .client import _ConsentODataClient) without a comment explaining the circular-import reason — consent/__init__.py line ~82
C6	Naming conventions	✅	All enum values follow SCREAMING_SNAKE_CASE = "snake_case_value"; file names are snake_case; private symbols use leading underscore (_ConsentODataClient, _OAuth2Flow)
C7	No unused code	✅	No unused imports or dead methods identified
C8	No unjustified new dependencies	⚠️	python-odata>=0.7.0 added as a runtime dependency — the choice is reasonable, but no CVE check or version justification is noted in the PR. responses>=0.25 added as dev dep for HTTP mocking — standard and justified
C9	Proto code freshness	➖	N/A — no .proto files changed

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D: API & Design

#	Criterion	Status	Finding
D1	API future-proofing	✅	create_client() factory present; ConsentConfig dataclass; BaseCapabilityConfig ABC for future DPI NG sub-services; auth via strategy classes
D2	Public API hygiene	✅	__all__ carefully curated in both dpi_ng/__init__.py and dpi_ng/consent/__init__.py; internal helpers prefixed _; _ConsentODataClient not exported
D3	Breaking changes marked	➖	N/A — purely additive; no existing public APIs changed
D4	Pagination & tenant filtering	✅	OData filter passed as query param; tenant routing via x-tenant-id header for mTLS; consistent with existing patterns
D5	Telemetry instrumentation	✅	Module.DPI_NG in telemetry/module.py; 90+ operations added to telemetry/operation.py; @record_metrics on create_client(); _telemetry_source plumbed through ConsentClient.__init__ and all five service classes

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E: Tests & Documentation

#	Criterion	Status	Finding
E1	Tests added/updated	✅	Unit tests under tests/core/unit/dpi_ng/consent/; BDD integration tests under tests/core/integration/dpi_ng/consent/; all new env vars documented in .env_integration_tests.example and docs/INTEGRATION_TESTS.md
E2	Documentation quality	✅	Full user-guide.md with overview, auth options, config table, API examples; all public methods have Google-style docstrings; README.md and INTEGRATION_TESTS.md updated
E3	Module structure compliance	⚠️	Two deviations from required layout: (1) load_from_env_or_mount() is absent from consent/config.py — destination, print, and adms all provide this factory; (2) models are in dtos/ + entities/ subpackages rather than a single _models.py — reasonable for OData complexity but deviates from the spec

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⚠️ Non-Blocking Suggestions

• [A4] If AI tooling (Copilot, Claude, ChatGPT, etc.) was used, add a one-sentence disclosure to the PR description per the SAP AI contribution guideline. The logger.info("Invoked …") / logger.info("Exiting …") trace in every dpi_ng method is unique to this module and strongly suggests AI assistance.
• [C5] Add a short comment on the lazy import explaining why — e.g. # deferred import to break circular dependency: consent/__init__ → services → client
• [C8] Note in the PR (or a commit message) that python-odata was checked for known CVEs before being added as a runtime dependency.
• [E3] Consider adding load_from_env_or_mount() to ConsentConfig (or BaseCapabilityConfig) to match the env-var/mount pattern used by other SDK modules.

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✅ Things Done Well

• All CI checks pass cleanly, including CodeQL and ruff/ty quality gates.
• Telemetry instrumentation is exceptionally thorough — 90+ operations defined, _telemetry_source plumbed through all five service layers.
• The shared dpi_ng/ base layer (auth.py, config.py, exceptions.py, odata_client.py) is cleanly abstracted for future DPI NG sub-services.
• Three auth strategies (Bearer, ClientCredentials, mTLS) with proper validation; tenant_id mTLS requirement enforced at config construction time.
• __all__ exports carefully curated in every __init__.py; internal symbols consistently prefixed _.
• Context manager support (__enter__/__exit__) on ConsentClient follows the established SDK pattern.
• Documentation is unusually complete — user guide, docstrings, integration test guide, and example env file all updated.

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Review generated by Claude Code PR review skill