ADD feature to allow donwload of source file with src endpoint

main.py

@@ -1,5 +1,5 @@
 from fastapi import FastAPI, Request
-from fastapi.responses import JSONResponse
+from fastapi.responses import JSONResponse, FileResponse
 from fastapi.middleware.cors import CORSMiddleware
 import os
 import csv
@@ -47,6 +47,7 @@ def register_api_endpoints():
         if file_path.is_file():
             endpoint_name = file_path.stem
             route = f"/api/{endpoint_name}"
+            src_route = f"/api/{endpoint_name}/src"
             
             # Skip if route already exists
             if any(route == route_info.path for route_info in app.routes):
@@ -64,8 +65,13 @@ def register_api_endpoints():
                             content={"error": f"Failed to load CSV: {str(e)}"}
                         )
                 
-                # Add the route
+                # Create a closure for serving the original file
+                async def get_csv_src(request: Request, file_path=file_path):
+                    return FileResponse(file_path, media_type='text/csv', filename=file_path.name)
+                
+                # Add the routes
                 app.add_api_route(route, get_csv_data, methods=["GET"])
+                app.add_api_route(src_route, get_csv_src, methods=["GET"])
                 
             elif file_path.suffix.lower() == '.json':
                 # Create a closure to capture the current file_path
@@ -79,8 +85,13 @@ def register_api_endpoints():
                             content={"error": f"Failed to load JSON: {str(e)}"}
                         )
                 
-                # Add the route
+                # Create a closure for serving the original file
+                async def get_json_src(request: Request, file_path=file_path):
+                    return FileResponse(file_path, media_type='application/json', filename=file_path.name)
+                
+                # Add the routes
                 app.add_api_route(route, get_json_data, methods=["GET"])
+                app.add_api_route(src_route, get_json_src, methods=["GET"])
 
 @app.middleware("http")
 async def check_for_new_files(request: Request, call_next):