-- Gets a value from a msgpacked key and returns it as JSON

-- Path to value is given by ARGV

-- Get the stored value and unpack it

local mp = redis.call('GET', KEYS[1])

local v = cmsgpack.unpack(mp)

-- Parse the path

local r = v

while #ARGV > 0 do

local token = table.remove(ARGV,1)

local n = tonumber(token)

if n then

r = r[n+1]

else

r = r[token]

end

end

-- Serialize the reply to JSON

local js = cjson.encode(r)

return js