Module:TwitterSnowflake/gen
Usage
This generates a Snowflake ID of the current time, based off of Twitter's epoch.
Current ID: Template:TwitterSnowflake/gen
See also
local p = {}
local function numberToBinStr(x)
ret=""
while x~=1 and x~=0 do
ret=tostring(x%2)..ret
x=math.modf(x/2)
end
ret=tostring(x)..ret
return ret
end
function p.getSnowflake()
local sequence = "000000000000" -- 12 sequence bits
local shard = "0000000000" -- 10 shard bits
local epoch = 1288834974
local time = os.time()
local timestamp = time - epoch
local timestampbinary = numberToBinStr(timestamp..math.random(0,9)..math.random(0,9)..math.random(0,9)) -- lua only provides time, so we append three random digits as "milliseconds"
local snowflakebinary = timestampbinary .. shard .. sequence
return string.format("%18.0f",tonumber(snowflakebinary,2))
end
return p