23 lines
913 B
Go
23 lines
913 B
Go
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/*
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Package betterguid generates 20-character guid (globally unique id) strings
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with good properties:
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They're 20 character strings, safe for inclusion in urls (don't require escaping)
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They're based on timestamp so that they sort **after** any existing ids
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They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs
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They sort **lexicographically** (so the timestamp is converted to characters that will sort properly)
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They're monotonically increasing. Even if you generate more than one in the same timestamp, thelatter ones will sort after the former ones. We do this by using the previous random bits but "incrementing" them by 1 (only in the case of a timestamp collision).
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Read https://www.firebase.com/blog/2015-02-11-firebase-unique-identifiers.html
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for more info.
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Based on https://gist.github.com/mikelehen/3596a30bd69384624c11
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*/
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package betterguid
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