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 generate_mock_event(http_method, resource):
body_value = json.dumps(resource)
return {
Constants.event_http_method(): http_method,
Constants.event_body(): body_value,
Constants.event_path_parameters(): {Constants.event_path_parameter_identifier(): resource[Constants.event_identifier()]}
}
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 test_app_event_invalid_json_in_body(self):
from resource_api.fetch_resource import app
event = {
Constants.event_http_method(): HttpConstants.http_method_get(),
Constants.event_body(): "asdf"
}
handler_response = app.handler(event, None)
self.assertEqual(handler_response[Constants.response_status_code()], http.HTTPStatus.BAD_REQUEST,
'HTTP Status code not 400')
def test_app_event_empty_body(self):
from resource_api.insert_resource import app
event = {
Constants.event_http_method(): HttpConstants.http_method_post(),
Constants.event_body(): ""
}
handler_response = app.handler(event, None)
self.assertEqual(handler_response[Constants.response_status_code()],
http.HTTPStatus.BAD_REQUEST,
'HTTP Status code not 400')
def test_app_missing_env_region(self):
del os.environ['REGION']
from resource_api.fetch_resource import app
_event = {
Constants.event_http_method(): HttpConstants.http_method_get(),
Constants.event_path_parameters(): {Constants.event_path_parameter_identifier(): self.EXISTING_RESOURCE_IDENTIFIER},
}
app._dynamodb = None
_handler_response = app.handler(_event, None)
self.assertEqual(_handler_response[Constants.response_status_code()], http.HTTPStatus.INTERNAL_SERVER_ERROR,
'HTTP Status code not 500')
def test_app_missing_env_table(self):
del os.environ['TABLE_NAME']
from resource_api.fetch_resource import app
_event = {
Constants.event_http_method(): HttpConstants.http_method_get(),
Constants.event_path_parameters(): {Constants.event_path_parameter_identifier(): ''},
}
_handler_response = app.handler(_event, None)
self.assertEqual(_handler_response[Constants.response_status_code()], http.HTTPStatus.INTERNAL_SERVER_ERROR,
'HTTP Status code not 500')
def test_app_missing_env_region(self):
del os.environ['REGION']
from resource_api.insert_resource import app
app.clear_dynamodb()
_event = {
Constants.event_http_method(): HttpConstants.http_method_post(),
Constants.event_body(): "{}"
}
_handler_response = app.handler(_event, None)
self.assertEqual(_handler_response[Constants.response_status_code()],
http.HTTPStatus.INTERNAL_SERVER_ERROR,
'HTTP Status code not 500')
def test_app(self):
from resource_api.fetch_resource import app
dynamodb = self.setup_mock_database('eu-west-1', 'testing')
_event = {
Constants.event_http_method(): HttpConstants.http_method_get(),
Constants.event_path_parameters(): {Constants.event_path_parameter_identifier(): self.EXISTING_RESOURCE_IDENTIFIER},
}
_handler_response = app.handler(_event, None)
self.assertEqual(_handler_response[Constants.response_status_code()], http.HTTPStatus.OK,
'HTTP Status code not 200')
_ddb_response = json.loads(_handler_response[Constants.event_body()])
self.assertEqual(_ddb_response[Constants.ddb_response_attribute_name_count()], 1,
'Count is not 1')
remove_mock_database(dynamodb)
def test_handler_retrieve_resource_missing_resource_identifier(self):
from resource_api.fetch_resource.main.RequestHandler import RequestHandler
_dynamodb = self.setup_mock_database('eu-west-1',
'testing')
_request_handler = RequestHandler(_dynamodb)
_event = {
Constants.event_http_method(): HttpConstants.http_method_get(),
Constants.event_path_parameters(): {}
}
_handler_retrieve_response = _request_handler.handler(_event, None)
self.assertEqual(_handler_retrieve_response[Constants.response_status_code()], http.HTTPStatus.BAD_REQUEST,
'HTTP Status code not 400')
remove_mock_database(_dynamodb)
def test_handler_retrieve_resource_not_found(self):
from resource_api.fetch_resource.main.RequestHandler import RequestHandler
_dynamodb = self.setup_mock_database('eu-west-1',
'testing')
_request_handler = RequestHandler(_dynamodb)
_event = {
Constants.event_http_method(): HttpConstants.http_method_get(),
Constants.event_path_parameters(): {Constants.event_path_parameter_identifier(): 'fbf20333-35a5-4a06-9c58-68ea688a9a8b'}
}
_handler_retrieve_response = _request_handler.handler(_event, None)
self.assertEqual(_handler_retrieve_response[Constants.response_status_code()], http.HTTPStatus.NOT_FOUND,
'HTTP Status code not 404')
remove_mock_database(_dynamodb)
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)
def generate_mock_event(http_method, resource):
body_value = json.dumps(resource)
return {
Constants.event_http_method(): http_method,
Constants.event_body(): body_value,
}