Module:TwitterSnowflake/gen: Difference between revisions
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local timestampbinary = numberToBinStr(timestamp * 1000) -- lua only provides time in seconds, grr |
local timestampbinary = numberToBinStr(timestamp * 1000) -- lua only provides time in seconds, grr |
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local snowflakebinary = timestampbinary .. shard .. sequence |
local snowflakebinary = timestampbinary .. shard .. sequence |
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return tonumber(snowflakebinary,2) |
return string.format("%18.0f",tonumber(snowflakebinary,2)) |
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end |
end |
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Revision as of 02:53, 20 January 2021
Usage
This generates a Snowflake ID of the current time, based off of Twitter's epoch.
Current ID: 1928522557816832000 ()
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 * 1000) -- lua only provides time in seconds, grr
local snowflakebinary = timestampbinary .. shard .. sequence
return string.format("%18.0f",tonumber(snowflakebinary,2))
end
return p