INNER CODE UNIT · Python

_spa_fallback

ohdearquant/lionagi · lionagi/studio/app.py:337

    async def _spa_fallback(request: Request, exc: Exception) -> FileResponse | JSONResponse:
        # /api/* paths stay 404 JSON here, not the SPA HTML shell.
        path = request.url.path
        if path.startswith("/api/") or path == "/api":
            return JSONResponse({"detail": "Not Found"}, status_code=404)
        if request.method not in ("GET", "HEAD"):
            return JSONResponse({"detail": "Not Found"}, status_code=404)
        return FileResponse(
            str(index_path),
            headers={
                "Cache-Control": "no-store, no-cache, must-revalidate",
                "Pragma": "no-cache",
            },
        )


def create_app() -> FastAPI:
    """Build and return a fresh Studio FastAPI app instance, so callers

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