Added "shorten" command

lib/commands/shorten.rb

@@ -0,0 +1,18 @@
+module Bot
+    module DiscordCommands
+        module ShortenCommands
+            extend Discordrb::Commands::CommandContainer
+
+            require 'json'
+
+            SHORTEN_URL = 'https://www.googleapis.com/urlshortener/v1/url?key='
+
+            command(:shorten, usage: 'shorten <URL(スキームなし)>', description: '短縮URLを生成', min_args: 1) do |event, url|
+                body = {"longUrl" => url}.to_json
+                res = post_json(SHORTEN_URL + CONFIG[:google][:apikey], body)
+                json = JSON.parse(res.body)
+                event.respond json["id"]
+            end
+        end
+    end
+end

lib/methods.rb

@@ -27,4 +27,14 @@ def get_json(location, limit = 10)
         puts [uri.to_s, e.class, e].join(" : ")
         # handle error
     end
+end
+
+def post_json(location, json)
+    uri = URI.parse(location)
+    https = Net::HTTP.new(uri.host, uri.port)
+    https.use_ssl = true
+    req = Net::HTTP::Post.new(uri.request_uri)
+    req["Content-Type"] = "application/json"
+    req.body = json
+    return https.request(req)
 end