Use Gouid to create cryptographically secure random IDs. IDs can be byte slices or strings, both generated with just one allocation (see benchmarks below).
For full documentation see pkg.go.dev.
package main
import (
"fmt"
"github.com/twharmon/gouid"
)
func main() {
a := gouid.String(8, gouid.Secure32Char)
fmt.Println(a) // mp1nq34p
b := gouid.String(16, gouid.Secure64Char)
fmt.Println(b) // h-SoemLKa_QtoXgh
c := gouid.Bytes(16)
fmt.Println(c) // [244 188 217 137 122 245 94 126 80 119 87 170 6 178 228 179]
}goos: linux
goarch: amd64
pkg: github.com/twharmon/gouid
cpu: AMD Ryzen 7 7840HS w/ Radeon 780M Graphics
BenchmarkString8 337.6 ns/op 8 B/op 1 allocs/op
BenchmarkString16 359.1 ns/op 16 B/op 1 allocs/op
BenchmarkString32 363.5 ns/op 32 B/op 1 allocs/op
BenchmarkBytes8 327.0 ns/op 8 B/op 1 allocs/op
BenchmarkBytes16 334.0 ns/op 16 B/op 1 allocs/op
BenchmarkBytes32 334.7 ns/op 32 B/op 1 allocs/op
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