Lua Requires Chilkat v9.5.0.94+

Generate Monotonic ULIDs

See more ULID/UUID Examples

Generate a sequence of monotonic ULIDs all using the same seed time. This code sample generates a series of ULIDs with continuously increasing values. Lua

local chilkat = require("chilkat")

local seedDt = chilkat.DateTime.new()

-- You can set the seed time to any desired value.
-- In this example, the seed time is set to the current system date/time.
seedDt:set_from_current_system_time()

-- Generate the 1st ULID in the series.
-- (i.e. the current UTC UNIX-time)
local utc = true
local ulid = seedDt:ulid_generate(utc)
print(ulid)

-- Store the ULID in a Chilkat StringBuilder to generate the series.
local sbUlid = chilkat.StringBuilder.new()
sbUlid:append(ulid)

local i = 0
while i < 50 do
    seedDt:ulid_increment(sbUlid)
    print(sbUlid:get_as_string())
    i = i + 1
end

-- Sample output:

-- 01GRGH30H8DMQ4F9A0XCTZHPGM
-- 01GRGH30H8DMQ4F9A0XCTZHPGN
-- 01GRGH30H8DMQ4F9A0XCTZHPGP
-- 01GRGH30H8DMQ4F9A0XCTZHPGQ
-- 01GRGH30H8DMQ4F9A0XCTZHPGR
-- 01GRGH30H8DMQ4F9A0XCTZHPGS
-- 01GRGH30H8DMQ4F9A0XCTZHPGT
-- 01GRGH30H8DMQ4F9A0XCTZHPGV
-- 01GRGH30H8DMQ4F9A0XCTZHPGW
-- 01GRGH30H8DMQ4F9A0XCTZHPGX
-- 01GRGH30H8DMQ4F9A0XCTZHPGY
-- 01GRGH30H8DMQ4F9A0XCTZHPGZ
-- 01GRGH30H8DMQ4F9A0XCTZHPH0
-- 01GRGH30H8DMQ4F9A0XCTZHPH1
-- 01GRGH30H8DMQ4F9A0XCTZHPH2
-- 01GRGH30H8DMQ4F9A0XCTZHPH3
-- 01GRGH30H8DMQ4F9A0XCTZHPH4
-- 01GRGH30H8DMQ4F9A0XCTZHPH5
-- 01GRGH30H8DMQ4F9A0XCTZHPH6
-- 01GRGH30H8DMQ4F9A0XCTZHPH7
-- 01GRGH30H8DMQ4F9A0XCTZHPH8
-- 01GRGH30H8DMQ4F9A0XCTZHPH9
-- 01GRGH30H8DMQ4F9A0XCTZHPHA
-- 01GRGH30H8DMQ4F9A0XCTZHPHB
-- 01GRGH30H8DMQ4F9A0XCTZHPHC
-- 01GRGH30H8DMQ4F9A0XCTZHPHD
-- 01GRGH30H8DMQ4F9A0XCTZHPHE
-- 01GRGH30H8DMQ4F9A0XCTZHPHF
-- 01GRGH30H8DMQ4F9A0XCTZHPHG
-- 01GRGH30H8DMQ4F9A0XCTZHPHH
-- 01GRGH30H8DMQ4F9A0XCTZHPHJ
-- 01GRGH30H8DMQ4F9A0XCTZHPHK
-- 01GRGH30H8DMQ4F9A0XCTZHPHM
-- 01GRGH30H8DMQ4F9A0XCTZHPHN
-- 01GRGH30H8DMQ4F9A0XCTZHPHP
-- 01GRGH30H8DMQ4F9A0XCTZHPHQ
-- 01GRGH30H8DMQ4F9A0XCTZHPHR
-- 01GRGH30H8DMQ4F9A0XCTZHPHS
-- 01GRGH30H8DMQ4F9A0XCTZHPHT
-- 01GRGH30H8DMQ4F9A0XCTZHPHV
-- 01GRGH30H8DMQ4F9A0XCTZHPHW
-- 01GRGH30H8DMQ4F9A0XCTZHPHX
-- 01GRGH30H8DMQ4F9A0XCTZHPHY
-- 01GRGH30H8DMQ4F9A0XCTZHPHZ
-- 01GRGH30H8DMQ4F9A0XCTZHPJ0
-- 01GRGH30H8DMQ4F9A0XCTZHPJ1
-- 01GRGH30H8DMQ4F9A0XCTZHPJ2
-- 01GRGH30H8DMQ4F9A0XCTZHPJ3
-- 01GRGH30H8DMQ4F9A0XCTZHPJ4
-- 01GRGH30H8DMQ4F9A0XCTZHPJ5
-- 01GRGH30H8DMQ4F9A0XCTZHPJ6