How to store array of hashes in redis

Question

I want to store array of hashes in redis , what is best way to code it ?

Answer 1

If you are using a language which supports to/from json conversion, you can convert your hash to json and append it in a list. You can do the following in Ruby:

require 'rubygems'
require 'redis'
require 'json'
require 'pp'

redis = Redis.new(:host => '127.0.0.1', :port => 6379)

h1 = { :k1 => 'v1', :k2 => 'v2' }
redis.rpush('arr', h1.to_json)

h2 = { :k3 => 'v3', :k4 => 'v4' }
redis.rpush('arr', h2.to_json)

hashes = redis.lrange('arr', 0, -1)
hashes.map! { |x| JSON.parse(x) }
pp hashes