init

app.py

@@ -0,0 +1,59 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from starlette.responses import JSONResponse
+import uvicorn
+
+from storage.database import init_db
+from exceptions import ServiceNotConfiguredError
+from middleware.config_guard import ConfigGuardMiddleware
+from api import debates_router, api_keys_router, models_router, setup_router
+
+app = FastAPI(
+    title="Dialectica - Multi-Model Debate Framework",
+    description="A framework for structured debates between multiple language models",
+    version="0.1.0"
+)
+
+# Add CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # Allow all origins for development
+    allow_credentials=True,
+    allow_methods=["*"],  # Allow all methods
+    allow_headers=["*"],  # Allow all headers
+    # Add exposed headers to allow frontend to access response headers
+    expose_headers=["Access-Control-Allow-Origin", "Access-Control-Allow-Credentials"]
+)
+
+# Config guard: return 503 for business routes when DB not configured
+app.add_middleware(ConfigGuardMiddleware)
+
+
+@app.exception_handler(ServiceNotConfiguredError)
+async def not_configured_handler(request, exc):
+    return JSONResponse(
+        status_code=503,
+        content={"error_code": "SERVICE_NOT_CONFIGURED", "detail": str(exc)},
+    )
+
+
+@app.on_event("startup")
+def startup_event():
+    """Initialize database on startup (skipped if not configured)."""
+    init_db()
+
+
+# Register routers
+app.include_router(debates_router)
+app.include_router(api_keys_router)
+app.include_router(models_router)
+app.include_router(setup_router)
+
+
+@app.get("/")
+async def root():
+    return {"message": "Welcome to Dialectica - Multi-Model Debate Framework"}
+
+
+if __name__ == "__main__":
+    uvicorn.run(app, host="0.0.0.0", port=8020)