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Discussion on: URL shortener with Elixir and Phoenix

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Roberto Amorim

I think checking is not necessary; you can just proceed with the insert, and, if any unique violation occurs, generate a new key and try inserting again, repeat until it works. That way you make sure it works while not incurring in any penalty on the "happy" path.

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Aleksi Holappa Author • Edited on

Yes! That would be even better! I’ll update the article at some point to handle it like this. 👍