http://simonwillison.net/2022-01-08T19:31:59+00:00Simon Willison2022-01-08T19:31:59+00:002022-01-08T19:31:59+00:00https://simonwillison.net/2022/Jan/8/hashids/#atom-tag

<p><strong><a href="https://hashids.org/">Hashids</a></strong></p> Confusingly named because it’s not really a hash—this library (available in 40+ languages) offers a way to convert integer IDs to and from short strings of text based on a salt which, if kept secret, should help prevent people from deriving the IDs and using them to measure growth of your service. It works using a base62 alphabet that is shuffled using the salt. <p><small></small>Via <a href="https://twitter.com/tmcw/status/1397190530577182731">Tom MacWright</a></small></p> <p>Tags: <a href="https://simonwillison.net/tags/ids">ids</a></p>

2009-06-09T10:52:38+00:002009-06-09T10:52:38+00:00https://simonwillison.net/2009/Jun/9/twitpocalypse/#atom-tag

<p><strong><a href="http://blog.programmableweb.com/2009/06/09/the-twitpocalypse-is-near-will-your-twitter-client-survive/">The Twitpocalypse is Near: Will Your Twitter Client Survive?</a></strong></p> Twitter tweet IDs will shortly tick over past the maximum signed 32 bit integer, potentially breaking applications. I learnt this lesson when the same thing happened to Flickr photo IDs: never store numeric IDs from external systems as integers, always use strings. <p>Tags: <a href="https://simonwillison.net/tags/apis">apis</a>, <a href="https://simonwillison.net/tags/flickr">flickr</a>, <a href="https://simonwillison.net/tags/ids">ids</a>, <a href="https://simonwillison.net/tags/maxint">maxint</a>, <a href="https://simonwillison.net/tags/twitter">twitter</a></p>