Initial commit

lib/peatio/kline_db.rb

@@ -0,0 +1,21 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+module KlineDB
+  class << self
+
+    def redis
+      @redis ||= Redis.new(
+        url: ENV["REDIS_URL"],
+        db: 1
+      )
+    end
+
+    def kline(market, period)
+      key = "peatio:#{market}:k:#{period}"
+      length = redis.llen(key)
+      data = redis.lrange(key, length - 5000, -1).map{|str| JSON.parse(str)}
+    end
+
+  end
+end