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14 lines
367 B
Lua
14 lines
367 B
Lua
local key = KEYS[1];
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local increment = tonumber(ARGV[1]) or 0;
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local ttl = tonumber(ARGV[2]) or 0;
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if redis.call("EXISTS", key) == 1 then
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redis.call("INCRBY", key, increment);
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local sum = tonumber(redis.call("GET", key)) or 0;
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-- extend the life of this counter by ttl seconds
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redis.call("EXPIRE", key, ttl);
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return sum;
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else
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return nil;
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end
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