Push notification

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Push notification

Postby Nuber2Py » Wed Apr 16, 2014 7:57 pm

I am trying to follow the example at this location http://nthn.me/posts/2012/push.html and i did not understand what this line of code does

Code: Select all
fmt = '!cH32sH{0:d}s'.format(len(payload))


If anyone can please help me understand it I would really appreciate that.
Last edited by micseydel on Wed Apr 16, 2014 8:24 pm, edited 1 time in total.
Reason: Code tags, lock.
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Re: Push notification

Postby micseydel » Wed Apr 16, 2014 8:27 pm

It's just creating a format string for the struct.pack() call. The way he knew what the format string is should be documented somewhere by Apple.
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