Monocle is a fast, efficient and thread-safe unique id generator written in Go. Choose the timestamp resolution and the length of the random string to suit your specific requirements.
The generated values are constructed so that they are always in chronological order when sorted alphabetically.
go get github.com/dsincl12/monocle
import "github.com/dsincl12/monocle"
func main() {
// create instance with configuration
m := monocle.New(monocle.Config{
TimestampResolution: time.Millisecond,
NumberOfRandomCharacters: 8,
})
// generate value
value := m.Next() // => RSMJ6sUpQxNE1eN
// parse timestamp from value
timestamp := m.ParseTimestamp(value) // => 2019-06-03 18:48:34.13 +0000 UTC
// parse random string from value
randomString := m.ParseRandomString(value) // => pQxNE1eN
}BenchmarkNext-4 10000000 212 ns/op 32 B/op 3 allocs/op
Written by David Sinclair
Original fast random string algorithm written by András Belicza
Apache License 2.0
Copyright (c) 2019 David Sinclair
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.