vyro 0.2.0rc1

Rust-powered Python backend framework with fast routing.

vyro

Vyro is a backend framework that combines Python developer experience with a Rust-native execution engine.

Why Vyro

• Rust-native runtime for high throughput and low overhead.
• Pythonic routing and handler authoring.
• Async-first handler model (async def only).
• RBAC/ABAC authorization core primitives.
• API key manager and rotation hook primitives.
• Security audit log event primitives.
• Memory/Redis cache backend primitives.
• Cache invalidation hook primitives.
• Response cache TTL policy primitives.
• Canary routing control primitives.
• Blue-green rollout helper primitives.
• Safe runtime config hot-reload primitives.
• Idempotency-key middleware primitives.
• Structured release automation (tag -> changelog -> PyPI -> GitHub Release).
• Native file-path response streaming (return pathlib.Path from handler).
• OpenAPI 3.1 + JSON schema generation from route handlers.
• Priority-aware middleware ordering primitives.
• Route-group conditional middleware registration.
• Automatic correlation-id injection on request context.
• Structured JSON logging primitives for CLI/runtime output.
• Production-readiness doctor checks with strict mode for CI gates.
• API contract lint integration via python -m scripts.dev.check.
• Benchmark smoke via python -m scripts.dev.bench.
• CI benchmark regression gate with baseline comparison.
• vyro new architecture templates (minimal, service, hexagonal).
• Monorepo workspace support via vyro workspace init|status.
• Configurable log sampling policy (VYRO_LOG_SAMPLE_INFO/WARN/ERROR).
• Sensitive field redaction in logs (VYRO_LOG_REDACT_KEYS).
• OpenTelemetry-friendly trace span exporter with traceparent propagation.
• Prometheus metrics registry primitives (vyro_requests_total baseline).
• Built-in latency tracker with p50/p95/p99 quantiles.
• Per-route throughput counters for method/path traffic visibility.
• Health probe primitives for liveness/readiness/startup checks.
• Graceful shutdown policy primitives with timeout/drain controls.
• Runtime backpressure controller for inflight request limits.
• Per-route concurrency limiter for hotspot endpoint control.
• Global token-bucket rate limiter with burst support.
• Multi-key rate limiter for compound identities (IP/user/token).
• Native async outbound HTTP client primitive.
• ETag generation and conditional-request primitives.
• JWT auth guard primitives (issue/verify/authorize).
• Background jobs runtime primitives.
• Cron scheduler primitives.
• HTTP/2 stream helper primitives.
• gRPC gateway mapping/transcoding foundation primitives.
• Streaming multipart upload collector primitives.
• High-performance multipart parser primitives.
• Migration runner primitives and vyro migrate CLI.
• Content negotiation primitives for Accept header matching.
• OAuth2/OIDC helper primitives.
• Static file serving primitives with safe path resolution.
• Response compression primitives with speed/balanced/size profiles.
• CORS policy profile primitives (strict, standard, permissive).
• CSRF token issue/verify primitives.
• DB connection pool manager primitives.
• Dead-letter queue and retry primitives.
• Task trace correlation primitives for background jobs.
• Typed internal event bus primitives.
• CQRS scaffolding primitives (command/query bus).
• Transactional outbox pattern helper primitives.
• Saga orchestration primitives.
• Multi-tenant isolation model primitives.
• Tenant-aware routing and config primitives.
• Feature flag engine primitives for progressive rollout.
• ABI-stable plugin system primitives.
• Extension marketplace manifest primitives.
• Service discovery adapter primitives for multi-service runtime.
• Kubernetes manifest generator primitives.
• No-GIL worker tuning primitives.
• Secrets provider abstraction primitives.
• Async SQL adapter primitives.
• Query timeout and slow query log primitives.
• Schema drift detector primitives.
• Transaction scope decorator primitives.
• Outbound circuit-breaker primitive for upstream dependency protection.
• Outbound bulkhead primitive to isolate dependency pools.
• Retry policy primitive with exponential backoff and jitter.
• Timeout budget primitive for end-to-end deadline propagation.
• First-class SSE response primitive for server-sent events.
• WebSocket route registry and @app.websocket(...) decorator.

Quickstart

Install from PyPI

pip install vyro

Local development setup

pip install maturin pytest
maturin build --release
pip install --force-reinstall target/wheels/vyro-*.whl
python examples/hello_world.py

Minimal example

from vyro import Context, Vyro

app = Vyro()

@app.get("/")
async def hello(ctx: Context):
    return {"message": "hello from vyro"}

@app.get("/users/:id", version="1")
async def get_user(ctx: Context, id: int):
    return {"id": id}

@app.get("/legacy", deprecated="use /v2/users/:id")
async def legacy(ctx: Context):
    return {"legacy": True}

if __name__ == "__main__":
    app.run(port=8000, workers=2)

Development

Run all core checks locally:

cargo test
python -m pytest tests/py tests/integration -q
maturin build --release

CLI

Vyro ships with an official CLI:

vyro --help
vyro doctor
vyro doctor --strict
vyro new my_service --template service
vyro new my_hex_app --template hexagonal
vyro workspace init platform --apps api,worker --libs common,events
vyro workspace status --root platform
vyro nogil-tune --workload balanced --cpu-count 8 --out nogil_profile.json
vyro k8s --name vyro-api --image ghcr.io/vietrix/vyro:latest --out k8s.yaml
vyro run --app examples.hello_world:app --port 8000
vyro openapi --app examples.hello_world:app --out openapi.json
vyro compat --base openapi-prev.json --target openapi.json
vyro release notes --tag v0.1.0 --out release_notes.md
vyro release changelog --tag v0.1.0 --changelog CHANGELOG.md --out release_notes.md
vyro release assistant --tag v0.1.0 --dist-dir dist --execute

You can also run it as a module:

python -m vyro --help

vyro is the primary end-user command. Use python -m vyro only as a fallback when shell PATH does not expose vyro yet.

Developer automation lives in scripts/dev:

python -m scripts.dev.check
python -m scripts.dev.test
python -m scripts.dev.build --sdist
python -m scripts.dev.bench --suite all --iterations 10000 --out bench.json

Migration (App -> Vyro)

# before
from vyro import App
app = App()

# after
from vyro import Vyro
app = Vyro()

Project structure

• python/vyro/app: composition root (Vyro) and wiring.
• python/vyro/api: OpenAPI/JSON schema/compat contracts.
• python/vyro/runtime: runtime primitives grouped by domain (resilience, security, data, async_ops, edge, platform).
• rust/src/: native runtime and bridge.
• tests/: Python, Rust, and integration tests.
• .github/workflows/: CI and release automation.

See ARCHITECTURE.md for the full module map and request flow.

Community

• Contributing guide: CONTRIBUTING.md
• Code of Conduct: CODE_OF_CONDUCT.md
• Security policy: SECURITY.md

License

Vyro is licensed under the Apache License 2.0. See LICENSE.