do add weixin pay call api auth sign

@@ -363,6 +363,15 @@ server
         proxy_set_header   Accept-Encoding "gzip";
     }
 
+    location ^~ /shopping/pay/wechatwapapi {
+        proxy_redirect off;
+        proxy_pass http://yohobuy;
+        proxy_set_header   Host   $host;
+        proxy_set_header   X-Real-IP  $remote_addr;
+        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header   Accept-Encoding "gzip";
+    }
+
     location / {
         proxy_redirect off;
         proxy_pass http://119.254.81.245;