A way to reduce nested code

[Andi]

Is there a way to execute an asynchronous call as if it's synchronous,
which is useful in the most cases? Example: http://github.com/christkv/node-mongodb-native
This is the MongoDB driver for node.js and the example code won't do
anything but waiting for the callbacks and then starting the next
asynchronous call.
I have read that there is something like ...

asyncMethod().wait();
nextcall();

[Guillermo Rauch]

The `coroutines` that we had for a while added a lot of complexity to the codebase, specially when dealing

with events, so they were dropped.

There're several strategies to make async code beautiful and practical (queues, promises are some).

One of our projects is mongoose, a library on top of node-mongodb-native that has exactly this goal (among

many others).

We're probably releasing 0.1 today, with a lot of bug fixes, enhancements, better documentation and specs.

--
Guillermo Rauch
http://devthought.com

[Timothy Caswell]

I use my Step library, I also have one called Do, and one that I helped tmpvar with called Conductor.  Also there is the Promise library.

They are all four libraries that help mitigate the nesting without resorting to blocking apis.

[Step]: http://github.com/creationix/step

[Do]: http://github.com/creationix/do

[Conductor]: http://github.com/creationix/conductor

[NodePromise]: http://github.com/kriszyp/node-promise

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[tjholowaychuk]

Personally I just recommend keeping your public apis abstracted and
short/sweet. I usually never nest more than 3 three times

[Andi]

Thanks, I will take a deeper look. I will use the one that comes
closest to:

var a, b = asyncCall(param);
useResults ...

instead of:
asyncCall(param, function (a, b) {
useResults ...
});