id: identifiers

import "github.com/grokify/oscompat/id"

Identifiers built from the clock collide on Windows, where time.Now() advances in steps of about 15.6 ms and several values taken in a row are equal. id draws from crypto/rand instead.

spanID := id.Generate16()  // 16 hex characters (8 random bytes)
traceID := id.Generate32() // 32 hex characters (16 random bytes)
custom := id.Generate(4)   // 8 hex characters (N bytes is 2N characters)

Generate panics if crypto/rand fails, which does not happen on a working system.

These are random, not ordered. If you need identifiers that sort by creation time, use a time-ordered scheme such as UUIDv7 and keep the ordering in the identifier, not in a timestamp column.