Discussion on: Authorisation with Casbin and Koa Part 2

The function where you would initialise your koa app can be an async function. In my project what I do is I create my koa app and call the above two lines in an async function, then on start up I call that async function and only start the server inside the then. So something like this:

async function setup() {
  const app = new Koa();
  const enforcer = await newEnforcer('path/to/model.conf', 'path/to/policy.csv');
  app.use(authorisation(enforcer));

  //...all other setup

  return app;
}

and then on start up of the service I would do something like this:

setup().then((app) => {
  app.listen(`<port number>`);
});