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a8c7066 d946221 a8c7066 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | import logging
import time
import uuid
from fastapi import Depends, FastAPI, Request
from fastapi.concurrency import run_in_threadpool
from fastapi.responses import JSONResponse
from src.application.dto.ask_question_dto import AskQuestionCommand
from src.application.dto.feedback_dto import SubmitFeedbackCommand
from src.domain.errors.exceptions import EmptyQuestionError
from src.adapters.inbound.api.feedback_schemas import SubmitFeedbackRequest, SubmitFeedbackResponse
from src.adapters.inbound.api.schemas import AskQuestionRequest, AskQuestionResponse, ChunkResponse
from src.bootstrap.container import Container
def create_app(container: Container | None = None) -> FastAPI:
app = FastAPI(title="RAG Backend API", version="0.1.0")
runtime_container = container or Container()
logger = logging.getLogger("chatbot.backend.inbound")
def get_container() -> Container:
return runtime_container
@app.get("/")
def welcome() -> dict[str, str]:
return {
"message": "Bienvenue sur l'API RAG.",
"docs": "/docs",
"health": "/health",
}
@app.middleware("http")
async def inbound_logging_middleware(request: Request, call_next):
request_id = request.headers.get("x-request-id", str(uuid.uuid4()))
start = time.perf_counter()
try:
response = await call_next(request)
except Exception:
duration_ms = (time.perf_counter() - start) * 1000.0
logger.exception(
"http.request.failure",
extra={
"request_id": request_id,
"method": request.method,
"path": request.url.path,
"status_code": 500,
"duration_ms": round(duration_ms, 2),
},
)
raise
def log_request(status_code: int) -> None:
duration_ms = (time.perf_counter() - start) * 1000.0
logger.info(
"http.request",
extra={
"request_id": request_id,
"method": request.method,
"path": request.url.path,
"status_code": status_code,
"duration_ms": round(duration_ms, 2),
},
)
response.headers["x-request-id"] = request_id
body_iterator = getattr(response, "body_iterator", None)
if body_iterator is None:
log_request(response.status_code)
return response
async def wrapped_body_iterator():
try:
async for chunk in body_iterator:
yield chunk
finally:
log_request(response.status_code)
response.body_iterator = wrapped_body_iterator()
return response
@app.get("/health")
def health() -> dict[str, str]:
return {"status": "ok"}
@app.post("/api/v1/ask", response_model=AskQuestionResponse)
async def ask_question(
payload: AskQuestionRequest,
container: Container = Depends(get_container),
) -> AskQuestionResponse:
try:
command = AskQuestionCommand(
question=payload.question,
top_k=payload.top_k,
use_mmr=payload.use_mmr,
lambda_mult=payload.lambda_mult,
similarity_threshold=payload.similarity_threshold,
trace_name=payload.trace_name,
user_id=payload.user_id,
)
result = await run_in_threadpool(
container.ask_question.execute,
command,
)
return AskQuestionResponse(
answer=result.answer,
trace_id=result.trace_id,
chunks=[
ChunkResponse(
id=chunk.id,
content=chunk.content,
score=chunk.score,
title=chunk.title,
author=chunk.author,
)
for chunk in result.chunks
],
)
except EmptyQuestionError as exc:
return JSONResponse(status_code=400, content={"error": str(exc)})
except Exception as exc:
logger.exception("ask_question_failure")
return JSONResponse(status_code=500, content={"error": str(exc)})
@app.post("/api/v1/feedback", response_model=SubmitFeedbackResponse)
async def submit_feedback(
payload: SubmitFeedbackRequest,
container: Container = Depends(get_container),
) -> SubmitFeedbackResponse:
try:
command = SubmitFeedbackCommand(
trace_id=payload.trace_id,
score_value=payload.score_value,
feedback_type=payload.feedback_type,
comment=payload.comment,
)
result = await run_in_threadpool(
container.submit_feedback.execute,
command,
)
return SubmitFeedbackResponse(status=result.status)
except Exception as exc:
logger.exception("submit_feedback_failure")
return JSONResponse(status_code=500, content={"error": str(exc)})
return app
app = create_app()
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