go-flake generates unique identifiers that are roughly sortable by time.
Flake can run on a cluster of machines and still generate unique IDs without requiring worker coordination.
A Flake ID is a 64-bit integer will the following components:
- 41 bits is the timestamp with millisecond precision
- 10 bits is the host id (uses IP modulo 2^10)
- 13 bits is an auto-incrementing sequence for ID requests within the same millisecond
go get github.com/nordligulv/go-flake
package main
import (
"log"
"github.com/nordligulv/go-flake"
)
func main() {
f, err := flake.New(1)
if err != nil {
log.Fatal(err)
}
id := f.NextID()
fmt.Println(id)
fmt.Println(id.String())
}This work is based on code and concepts from the following: