def handler(self, event, context):
"""
Request handler method for modify resource function.
"""
if event is None or Constants.event_path_parameters() not in event:
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
if Constants.event_path_parameter_identifier() not in event[Constants.event_path_parameters()]:
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
try:
body = json.loads(event[Constants.event_body()])
except JSONDecodeError as e:
return response(http.HTTPStatus.BAD_REQUEST, str(e))
identifier = event[Constants.event_path_parameters()][Constants.event_path_parameter_identifier()]
http_method = event[Constants.event_http_method()]
if http_method == HttpConstants.http_method_put() and body is not None:
try:
ddb_response = self.modify_resource(body)
ddb_response[Constants.event_identifier()] = identifier
return response(http.HTTPStatus.OK, json.dumps(ddb_response))
except ValueError as e:
return response(http.HTTPStatus.BAD_REQUEST, str(e))
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
def handler(self, event, context):
"""
Request handler method for fetch resource function.
"""
if event is None or Constants.event_path_parameters() not in event:
return response(http.HTTPStatus.BAD_REQUEST,
Constants.error_insufficient_parameters())
if Constants.event_path_parameter_identifier() not in event[
Constants.event_path_parameters()]:
return response(http.HTTPStatus.BAD_REQUEST,
Constants.error_insufficient_parameters())
_identifier = event[Constants.event_path_parameters()][
Constants.event_path_parameter_identifier()]
_http_method = event[Constants.event_http_method()]
if _http_method == HttpConstants.http_method_get() and _identifier:
_ddb_response = self.__retrieve_resource(_identifier)
if len(_ddb_response[
Constants.ddb_response_attribute_name_items()]) == 0:
return response(http.HTTPStatus.NOT_FOUND,
json.dumps(_ddb_response))
return response(http.HTTPStatus.OK, json.dumps(_ddb_response))
return response(http.HTTPStatus.BAD_REQUEST,
Constants.error_insufficient_parameters())
def handler(self, event, context):
"""
Request handler method for insert resource function.
"""
if event is None:
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
try:
body = event[Constants.event_body()]
print(body)
body_as_json = json.loads(body)
except JSONDecodeError as e:
return response(http.HTTPStatus.BAD_REQUEST, str(e))
http_method = event[Constants.event_http_method()]
if http_method == HttpConstants.http_method_post() and body_as_json is not None:
ddb_response = self.insert_resource(body_as_json)
return response(http.HTTPStatus.CREATED, json.dumps(ddb_response))
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
def handler(event, context):
"""
Handler method for insert resource function.
"""
if event is None:
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
if event is None or Constants.event_body() not in event or Constants.event_http_method() not in event:
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
if event[Constants.event_body()] is None or len(event[Constants.event_body()]) is 0:
return response(http.HTTPStatus.BAD_REQUEST, Constants.error_insufficient_parameters())
global _dynamodb
if _dynamodb is None:
try:
ddb = DynamoDB()
_dynamodb = ddb.connect(os.environ[Constants.env_var_region()])
except Exception as e:
return response(http.HTTPStatus.INTERNAL_SERVER_ERROR, str(e))
try:
request_handler = RequestHandler(_dynamodb)
except Exception as e:
return response(http.HTTPStatus.INTERNAL_SERVER_ERROR, str(e))
return request_handler.handler(event, context)
