js sdk api

app/controllers/wechats/js_sdk_signatures_controller.rb

@@ -1,7 +1,10 @@
 class Wechats::JsSdkSignaturesController < ApplicationController
   def create
-    signature = Util::Wechat.js_sdk_signature(params[:url], params[:noncestr], params[:timestamp])
-    render_ok(signature: signature)
+    timestamp = (Time.now.to_f * 1000).to_i
+    noncestr = ('A'..'z').to_a.sample(8).join
+    signature = Util::Wechat.js_sdk_signature(params[:url], noncestr, timestamp)
+
+    render_ok(appid: Util::Wechat.appid, timestamp: timestamp, noncestr: noncestr, signature: signature)
   rescue Util::Wechat::Error => ex
     render_error(ex.message)
   end