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9e3003d | 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 | from __future__ import annotations
from functools import lru_cache
from typing import Any
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel, Field
from pipeline import build_default_pipeline, QueryFilters
app = FastAPI(title= "Financial RAG API", version="1.0.0")
class QueryRequest(BaseModel):
question: str = Field(..., min_length=1)
company_name: str | None = None
filing_type: str | None = None
class SourceResponse(BaseModel):
source_id: int
text: str
metadata: dict[str,Any]
class QueryResponse(BaseModel):
answer: str
sources: list[SourceResponse]
latency_ms: int
class HealthResponse(BaseModel):
status: str
@lru_cache(maxsize=1)
def get_pipeline() -> Any:
return build_default_pipeline()
@app.on_event("startup")
def warm_up_pipeline() -> None:
get_pipeline()
@app.get("/health", response_model= HealthResponse)
def health() -> HealthResponse:
return HealthResponse(status="ok")
@app.post("/query", response_model=QueryResponse)
def query(request:QueryRequest) -> QueryResponse:
try:
filters = QueryFilters(request.company_name, request.filing_type)
response = get_pipeline().answer_question(request.question, filters)
except Exception as exc:
raise HTTPException(status_code=500, detail=str(exc)) from exc
sources = [SourceResponse(**source.__dict__) for source in response.sources]
return QueryResponse(answer= response.answer ,sources=sources,latency_ms= response.latency_ms)
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