Add method Diversipub::Main#postgresql_pool

lib/diversipub/main.rb

@@ -81,6 +81,19 @@ module Diversipub
       end.freeze
     end
 
+    def postgresql_pool
+      @postgresql_pool ||= ConnectionPool.new do
+        PG.connect(
+          host: 'localhost',
+          dbname: 'diversipub',
+          user: 'diversipub',
+          password: 'diversipub',
+        ).tap do |conn|
+          conn.type_map_for_results = PG::BasicTypeMapForResults.new conn
+        end
+      end
+    end
+
     def puma_task
       @puma_task ||= PumaTask.new self
     end