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DazWorrall/foo.rb

Created March 1, 2019 09:39
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  1. DazWorrall created this gist Mar 1, 2019.
    21 changes: 21 additions & 0 deletions foo.rb
    View file
    Original file line number Diff line number Diff line change
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    require 'redis'
    require 'active_support/time'

    redis = Redis.new

    # members are added with a score that is a timestamp of when they should expire
    redis.zadd('test-sset', 10.minutes.from_now.to_i, 'app1')
    # let's add one in the past so we can test some more
    redis.zadd('test-sset', 10.minutes.ago.to_i, 'app2')

    puts 'all apps'
    puts redis.zrange('test-sset', 0, -1) # app1, app2

    puts 'active apps'
    puts redis.zrangebyscore('test-sset', Time.now.utc.to_i, '+inf') #app1

    puts 'expiring old apps'
    puts redis.zremrangebyscore('test-sset', '-inf', Time.now.utc.to_i) # returns # of expired elements

    puts 'all remaining apps'
    puts redis.zrange('test-sset', 0, -1) # app1