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November 2, 2019 19:47
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Lua script to book items
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| if redis.call("EXISTS", KEYS[1]) == 1 then -- See if key for quantity exists | |
| if redis.call("INCRBY", KEYS[1], ARGV[1]) >= 0 then -- "Increment" the key by -quantity | |
| -- and check the new value | |
| redis.call("EXPIRE", KEYS[1], ARGV[2]) -- set an expiry time on this booking | |
| return true | |
| else | |
| return false | |
| end | |
| else | |
| return false | |
| end |
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