def main() -> None:
"""Main routine, executed only if running as stand-alone."""
log.info(
"***** Starting development server at http://%s/api/ *****",
get_value("FLASK_SERVER_NAME"),
)
APP.run(
debug=get_value("FLASK_DEBUG"),
port=get_value("FLASK_PORT"),
host=get_value("FLASK_HOST"),
)
def default_error_handler(exception) -> FlaskApiReturnType:
"""Default error handler that returns HTTP 500 error."""
log.exception(exception.message)
if get_value("FLASK_DEBUG"):
error_msg = exception.message
else:
error_msg = "An unhandled exception occurred"
return {"message": error_msg}, 500
def load_default_module(self) -> None:
"""Loads a module, chosen either by getting the name from TRAINED_MODEL_MODULE_NAME env var
or from the settings file. If module is not found in env var or settings, find it by calling
load_first_module()"""
env_model_name: str = get_value("TRAINED_MODEL_MODULE_NAME")
if not env_model_name:
env_model_name = self.find_first_module()
if env_model_name:
self.load(env_model_name)
def initialize_app(flask_app: Flask) -> None:
"""Initialises the app."""
configure_app(flask_app)
blueprint = Blueprint("api", __name__, url_prefix="/api")
api.init_app(blueprint)
flask_app.register_blueprint(blueprint)
if get_value("MULTITHREADED_INIT") and not IN_UWSGI:
trained_model_wrapper.multithreaded_init()
else:
trained_model_wrapper.init()
def configure_app(flask_app: Flask) -> None:
"""Configures the app."""
flask_settings_to_apply: List = [
#'FLASK_SERVER_NAME',
"SWAGGER_UI_DOC_EXPANSION",
"RESTX_VALIDATE",
"RESTX_MASK_SWAGGER",
"SWAGGER_UI_JSONEDITOR",
"ERROR_404_HELP",
]
for key in flask_settings_to_apply:
flask_app.config[key] = get_value(key)