1) Diagnostic changes to identify CORS errors on production deploymment; 2) Changes to improve UX on the Swagger UI page.

backend/api/agent.py

@@ -1,19 +1,15 @@
-from fastapi import APIRouter, HTTPException
-from pydantic import BaseModel
+from fastapi import APIRouter, HTTPException, Form
 from backend.agents.golf_langgraph import create_graph
 from backend.core.logging_config import logger
 import traceback
 
 router = APIRouter()
 
-class Query(BaseModel):
-    query: str
-
 @router.post("/query")
-async def query_agent(query: Query):
+async def query_agent(query: str = Form(...)):
     try:
         graph = create_graph()
-        result = await graph.ainvoke({"input": query.query})
+        result = await graph.ainvoke({"input": query})
         return {"response": result["final_response"]}
     except Exception as e:
         logger.error("Exception in /query endpoint:", exc_info=True)

backend/api/logging.py

@@ -1,11 +1,16 @@
-from fastapi import APIRouter, HTTPException
+from fastapi import APIRouter, HTTPException, Query
 from pydantic import BaseModel
+from enum import Enum
 from backend.core.logging_config import set_log_level, get_log_level, logger
 
 router = APIRouter()
 
-class LogLevel(BaseModel):
-    level: str
+class LogLevelEnum(str, Enum):
+    DEBUG = "DEBUG"
+    INFO = "INFO"
+    WARNING = "WARNING"
+    ERROR = "ERROR"
+    CRITICAL = "CRITICAL"
 
 @router.get("/log-level")
 async def get_current_log_level():
@@ -13,10 +18,10 @@ async def get_current_log_level():
     return {"level": get_log_level()}
 
 @router.post("/log-level")
-async def update_log_level(log_level: LogLevel):
+async def update_log_level(level: LogLevelEnum = Query(..., description="Log level")):
     """Update the logging level."""
     try:
-        set_log_level(log_level.level)
-        return {"message": f"Log level set to {log_level.level}"}
+        set_log_level(level)
+        return {"message": f"Log level set to {level}"}
     except ValueError as e:
         raise HTTPException(status_code=400, detail=str(e)) 

backend/main.py

@@ -6,11 +6,21 @@ from fastapi.staticfiles import StaticFiles
 from backend.api import router as api_router
 from backend.core.logging_config import logger
 from dotenv import load_dotenv
+from starlette.requests import Request
 
 load_dotenv()
 
 app = FastAPI()
 
+from starlette.requests import Request
+
+@app.middleware("http")
+async def log_request_origin(request: Request, call_next):
+    origin = request.headers.get("origin")
+    logger.debug(f"Incoming request from Origin: {origin} | Path: {request.url.path}")
+    response = await call_next(request)
+    return response
+
 # CORS middleware to allow frontend to talk to the backend
 allowed_origins_env = os.getenv("ALLOWED_ORIGINS")
 if allowed_origins_env: