redis implemntations and api setup completed

DockerApiServices/EventServiceApi/app_handler.py

@@ -0,0 +1,77 @@
+"""
+FastAPI Application Handler Module
+
+This module contains all the handler functions for configuring and setting up the FastAPI application:
+- CORS middleware configuration
+- Exception handlers setup
+- Uvicorn server configuration
+"""
+
+from fastapi import FastAPI, Request, status
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+
+from ApiLayers.ErrorHandlers.Exceptions.api_exc import HTTPExceptionApi
+from ApiLayers.Middleware.auth_middleware import RequestTimingMiddleware, LoggerTimingMiddleware
+
+
+def setup_cors_middleware(app: FastAPI) -> None:
+    """
+    Configure CORS middleware for the application.
+
+    Args:
+        app: FastAPI application instance
+    """
+    app.add_middleware(
+        CORSMiddleware,
+        allow_origins=["*"],
+        allow_credentials=True,
+        allow_methods=["*"],
+        allow_headers=["*"],
+    )
+
+
+async def generic_exception_handler(request: Request, exc: Exception) -> JSONResponse:
+    """
+    Handle generic exceptions and return formatted error responses.
+
+    Args:
+        request: FastAPI request object
+        exc: Exception instance
+
+    Returns:
+        JSONResponse: Formatted error response
+    """
+    return JSONResponse(
+        status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        content={"detail": "Internal server error", "error_code": "INTERNAL_ERROR"},
+    )
+
+
+def setup_exception_handlers(app: FastAPI) -> None:
+    """
+    Configure custom exception handlers for the application.
+
+    Args:
+        app: FastAPI application instance
+    """
+    from ApiLayers.ErrorHandlers.ErrorHandlers.api_exc_handler import HTTPExceptionApiHandler
+
+    custom_exception_handler = HTTPExceptionApiHandler(response_model=JSONResponse)
+    app.add_exception_handler(
+        HTTPExceptionApi, custom_exception_handler.handle_exception
+    )
+    app.add_exception_handler(Exception, generic_exception_handler)
+
+
+def setup_middleware(app: FastAPI) -> None:
+    """
+    Configure all middleware for the application.
+
+    Args:
+        app: FastAPI application instance
+    """
+    setup_cors_middleware(app)
+    app.add_middleware(RequestTimingMiddleware)
+    app.add_middleware(LoggerTimingMiddleware)
+    setup_exception_handlers(app)