Ask HN: What's the easiest way to add invite codes

3 points by scosman 14y ago ↗ HN

I'm at the point on a project where I want to add invite codes and share it with a select few people (and slowly grow it after that). I'd prefer to not to add another table and a bunch of logic to the core app itself, knowing that I'll just tear it out in a month.

Anyone know a good service for this? Any other good methods?

LaunchRock: if you're reading this, this would be an awesome addition to your service.

3 comments

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scosman 14y ago ↗

FYI: found an old thread on the subject http://news.ycombinator.com/item?id=306957

Still, any better suggestions would be welcome

scosman 14y ago ↗

And to totally answer my own question: http://www.prefinery.com/pricing/

macowar 14y ago ↗

Well, provided that this doesn't need to be highly secured. You could base invite keys on some property of the verification code. For example, you could design a system where a code is valid if the sum of the first five digits is equal to the product of the next three digits.

A system like that is easy to code and requires no database. The downside is that your would be relying on security by obscurity. For something like an invite system that may perfectly acceptable.