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Exploring Alternatives to UUIDv4; Enter ULIDs
UUIDv4 and ULID are both types of unique identifiers that can be used in distributed systems. UUIDv4 stands for Universally Unique Identifier version 4, and ULID stands for Universally Unique Lexicogr
They are URL friendly: ULIDs are more compact, they use Crockford’s base32 for better efficiency and readability (5 bits per character) which make it easy to copy-and-paste ( 01ARZ3NDEKTSV4RRFFQ69G5FAV), unlike hyphenated UUIDs which are in base 16 (e.g. 4fcc81d9-9512-4b2e-9267-b5e057d5007a). By analyzing ULIDs, it becomes possible to deduce the rate at which a service is generating events, thereby disclosing potentially valuable competitive data that should remain confidential. At Convoy, we strive to make sure that our software is backwards compatible and that little effort is required on our user’s part, so your workloads can operate while we move things around internally.
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