add: notice system api

app/services/notice/write/create_service.rb

@@ -0,0 +1,37 @@
+class Notice::Write::CreateService < Notice::Write::ClientService 
+  attr_accessor :receivers, :sender, :content, :notification_url, :source, :extra, :type
+
+  def initialize(receivers, content, notification_url, source, type=1, extra={},sender=-1)
+    @receivers = receivers
+    @sender = sender 
+    @content = content 
+    @notification_url = notification_url 
+    @source = source 
+    @extra = extra 
+    @type = type
+  end
+
+  def call
+    result = post("", request_params)
+    response = render_response(result)
+  end
+
+  private
+
+  def request_receivers
+    receivers.join(",")
+  end
+
+  def request_params
+    Hash.new.merge(data: {
+      receivers: request_receivers,
+      sender: sender,
+      content: content, 
+      notification_url: notification_url,
+      source: source,
+      extra: extra.to_json.to_s,
+      type: type
+    }.stringify_keys)
+  end
+
+end