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Comment by hitgeek | Hacker News Reader

same example with async control flow library and node style callback conventions

function getUserInfo(callback) { async.parallel([api.getUser, api.getFriends, api.getPhoto], callback) }

Even with a library like async there will be so much boilerplate, since you need to handle (or pass) errors every step of the way.

With async/await you only need to deal with errors at the level you actually care about them (using the language build in try/catch block).

In the example above, any error will be passed to the callback sent to getUserInfo - i.e., where you care about it.

Agreed there there is boiler plate - but with use of live templates in webstorm (or snippet in VS) - I find it getting easier.

    function getUserInfo(cb) {
      Promise.all([
        api.getUser(),
        api.getFriends(),
        api.getPhoto(),
      ]).then(
        ([user, friends, photo]) => 
          cb(null, {user, friends, photo}),
        cb,
      );
    }

I do this with so many libraries now. especially in the react-native ecosystem.

I just prefer node style callbacks, so I wrap libraries with promise based APIs with callback based wrappers.

hopefully i'm not the only one.

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