[refactor] change two error response http status

src/app.py

@@ -1,6 +1,7 @@
 """Lambda entry point"""
 import time
 from http import HTTPStatus
+from typing import Dict
 
 from aws_lambda_powertools.utilities.typing import LambdaContext
 from pydantic import ValidationError
@@ -10,16 +11,17 @@ from src.io.lambda_helpers import get_parsed_request_body, get_parsed_bbox_point
 from src.prediction_api.predictors import samexporter_predict
 
 
-def lambda_handler(event: dict, context: LambdaContext) -> str:
+def lambda_handler(event: Dict, context: LambdaContext) -> str:
     """
-    Handle the request for the serverless backend, dispatch the response.
+    Handle the request for the serverless backend and return the response
+    (success or a type of error based on the exception raised).
 
     Args:
         event: request content
         context: request context
 
     Returns:
-        dict: response from try_return_output() function
+        json response from get_response() function
 
     """
     app_logger.info(f"start with aws_request_id:{context.aws_request_id}.")
@@ -33,21 +35,21 @@ def lambda_handler(event: dict, context: LambdaContext) -> str:
         request_input = get_parsed_request_body(event)
         app_logger.info("event parsed: ok")
         body_request = get_parsed_bbox_points(request_input)
+        app_logger.info(f"body_request => {type(body_request)}, {body_request}.")
 
         try:
-            app_logger.info(f"body_request => {type(body_request)}, {body_request}.")
             body_response = samexporter_predict(body_request["bbox"], body_request["prompt"], body_request["zoom"])
             app_logger.info(f"output body_response:{body_response}.")
             response = get_response(HTTPStatus.OK.value, start_time, context.aws_request_id, body_response)
         except Exception as ex2:
             app_logger.error(f"exception2:{ex2}.")
-            response = get_response(HTTPStatus.BAD_REQUEST.value, start_time, context.aws_request_id, {})
+            response = get_response(HTTPStatus.INTERNAL_SERVER_ERROR.value, start_time, context.aws_request_id, {})
     except ValidationError as va1:
         app_logger.error(f"ValidationError:{va1}.")
         response = get_response(HTTPStatus.UNPROCESSABLE_ENTITY.value, start_time, context.aws_request_id, {})
     except Exception as ex1:
         app_logger.error(f"exception1:{ex1}.")
-        response = get_response(HTTPStatus.INTERNAL_SERVER_ERROR.value, start_time, context.aws_request_id, {})
+        response = get_response(HTTPStatus.BAD_REQUEST.value, start_time, context.aws_request_id, {})
 
     app_logger.info(f"response_dumped:{response}...")
     return response