add middleware for CORS, compression, or auth

How to

• Pass ASGI middleware factories to Lihil(middlewares=[...]) or Route.add_middleware(...).
• For CORS, reuse Starlette middleware. For auth, see JWT plugin.

Examples

from starlette.middleware.cors import CORSMiddleware
from lihil import Lihil

lhl = Lihil(middlewares=[lambda app: CORSMiddleware(app, allow_origins=["*"], allow_methods=["*"])])

# Custom timing/logging middleware pattern
import time, logging
log = logging.getLogger(__name__)

def timing_mw(next_app):
    async def app(scope, receive, send):
        start = time.perf_counter()
        try:
            await next_app(scope, receive, send)
        finally:
            dur = (time.perf_counter() - start) * 1000
            log.info("%s %s %.2fms", scope.get("method"), scope.get("path"), dur)
    return app

lhl = Lihil(middlewares=[timing_mw])

References

• http/middleware.md:1
• advance/plugin/jwt.md:1