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Ask HN: What's the worst API you've run into?

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Re: Ask HN: What's the worst API you've run into?

#33

RETS, (Real Estate Transaction Standard) without a doubt. Its an ancient xml protocol that is still important today but really painful to work with!

Seconded. To be fair, though, it's often not the API itself but the mapping and strange restrictions tied into access to it. Also, the often missing documentation of what is mapped to where, and why. I'll never touch it again!

Re: Ask HN: What's the worst API you've run into?

#34
post #23

Most market exchanges, more specifically CBOE (Chicago Board Options Exchange). They use FIX Protocol for their API but they don't follow their own spec and so it is just guessing as what they actually want.

It is sooooooo bad. Lots of exchanges have bad API but CBOE is for sure the worst.
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