ReMe/reme2/component/service/http_service.py
jinli.yl ca5970c6b0 refactor(component): refactor base components and file store implementations
- Remove abstract methods from base component start/close
- Update BaseJob to remove name parameter and simplify initialization
- Change file modification time field from mtime_ms to modified_time in seconds
- Add type checking imports and improve typing annotations
- Implement LocalFileStore with JSONL persistence for file chunks
- Add MdFileParser with markdown and frontmatter support
- Simplify HttpClient call method with proper kwargs handling
- Remove unused ReMe class methods and create backup version
- Update StreamJob to use step_components instead of steps attribute
2026-04-23 17:44:25 +08:00

94 lines
3.3 KiB
Python

"""HTTP service implementation using FastAPI and uvicorn."""
import asyncio
import json
import os
from collections.abc import AsyncGenerator
from contextlib import asynccontextmanager
from typing import TYPE_CHECKING
import uvicorn
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import StreamingResponse
from .base_service import BaseService
from ..component_registry import R
from ..job import BaseJob, StreamJob
from ...constants import REME_DEFAULT_HOST, REME_DEFAULT_PORT, REME_SERVICE_INFO
from ...schema import Request, Response
from ...utils import execute_stream_task
if TYPE_CHECKING:
from ...application import Application
@R.register("http")
class HttpService(BaseService):
"""HTTP service: jobs -> JSON endpoints, StreamJobs -> SSE endpoints."""
def __init__(self, host: str = REME_DEFAULT_HOST, port: int = REME_DEFAULT_PORT, **kwargs):
super().__init__(**kwargs)
self.host: str = host
self.port: int = port
def _add_job(self, job: BaseJob) -> None:
async def execute_endpoint(request: Request) -> Response:
return await job(**request.model_dump(exclude_none=True))
self.service.post(
path=f"/{job.name}",
response_model=Response,
description=job.description,
)(execute_endpoint)
def _add_stream_job(self, job: StreamJob) -> None:
async def execute_stream_endpoint(request: Request) -> StreamingResponse:
stream_queue = asyncio.Queue()
task = asyncio.create_task(
job(stream_queue=stream_queue, **request.model_dump(exclude_none=True)),
)
async def generate_stream() -> AsyncGenerator[bytes, None]:
async for chunk in execute_stream_task(
stream_queue=stream_queue,
task=task,
task_name=job.name,
output_format="bytes",
):
assert isinstance(chunk, bytes)
yield chunk
return StreamingResponse(generate_stream(), media_type="text/event-stream")
self.service.post(f"/{job.name}")(execute_stream_endpoint)
def add_job(self, job: BaseJob) -> None:
if isinstance(job, StreamJob):
self._add_stream_job(job)
else:
self._add_job(job)
def build_service(self, app: "Application") -> None:
@asynccontextmanager
async def lifespan(_: FastAPI):
await app.start()
service_info = json.dumps({"host": self.host, "port": self.port})
os.environ[REME_SERVICE_INFO] = service_info
self.logger.info(f"ReMe Service started: {REME_SERVICE_INFO}={service_info}")
yield
await app.close()
self.service = FastAPI(title=app.config.app_name, lifespan=lifespan)
self.service.add_middleware(
CORSMiddleware, # type: ignore[arg-type]
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
self.service.post("/health")(lambda: {"status": "healthy"})
def start_service(self, app: "Application") -> None:
uvicorn.run(self.service, host=self.host, port=self.port, **self.kwargs)