osp-provider-runtime 0.2.1

Thin runtime harness for OSP providers (RabbitMQ transport + contract execution).

osp-provider-runtime

Thin, boring runtime harness for OSP providers.

This package handles RabbitMQ message plumbing so provider implementations can focus on business logic.

What it does (v0.1)

• Parses a versioned request envelope.
• Builds provider RequestContext/ProviderRequest and calls execute(...).
• Serializes a standard response envelope.
• Applies explicit ack/requeue/dead-letter decisions.
• Emits structured logs for delivery decisions.
• Supports explicit runtime knobs for prefetch/concurrency/retries/timeouts/DLQ.

What it does not do

• No provider framework.
• No plugin system.
• No workflow orchestration.

Install

pip install osp-provider-runtime

Development

env -u VIRTUAL_ENV uv sync --extra dev
hatch shell
hatch run check
hatch run build
hatch run verify

Note: before osp-provider-contracts is published to your index, use uv for local checks in this monorepo:

env -u VIRTUAL_ENV uv run ruff check .
env -u VIRTUAL_ENV uv run mypy src tests
env -u VIRTUAL_ENV uv run pytest

Runtime Knobs

Set these via RuntimeConfig in your provider runtime_app.py:

• prefetch_count (default 1)
• concurrency (default 1)
• max_attempts (default 5)
• handler_timeout_seconds (optional)
• dead_letter_exchange (optional)
• dead_letter_routing_key (optional)
• heartbeat_seconds (default 60)
• blocked_connection_timeout_seconds (default 30)
• emit_legacy_updates (default True)
• emit_legacy_updates_for_contract_requests (default True)

Update Emission

Use TaskReporter for provider task lifecycle updates. The runtime keeps transport details compatible with orchestrator consumers.

Docs:

• docs/runtime-contract.md
• docs/provider-updates.md
• docs/migration-task-reporter.md
• docs/runtime-upgrade-checklist.md

Tag and push:

git tag v0.2.0
git push origin v0.2.0