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Unique ID Generator

Use 6 byte for submission time (UTC). You can use for SQL.

! Limit values to 2310 year.

Identifier structure:

  • 1-byte hardware address CRC4 ID

  • 2-byte process id

  • 4-byte value representing the seconds since the 2018-01-01 epoch

  • 3-byte counter (random, or manual)

  • 2-byte nanoseconds (the first 2 bytes of the four byte value)

Install

go get github.com/itrabbit/rid

Usage

fmt.Println(rid.New())
// -> t9eti00dzt0e0hkibo9g

fmt.Println(rid.New().String())
// -> t9ew400dzt1db4okkw80

fmt.Println(rid.New().NumeralString())
// -> 218093205000013254195242051055202176

Custom source:

src := rid.NewSource()
// src.Seed(0) <- Set start counter by custom value

id := src.NewID()

Get embedded info:

id := rid.New()

id.Mid()    // Hardware Address CRC ID
id.Pid()    // Process Pid
id.Time()   // With an accuracy of up to 6 bytes (from 8)

id.Counter() 

License and copyright

Copyright (c) 2018 IT Rabbit.

Original encode/decode algorithm: Copyright (c) 2015 Olivier Poitrey rs@dailymotion.com. The same MIT license applies.