add

@@ -62,12 +62,19 @@ function route(redirectPath)
         end
 end
 
-
+---- function read request body
+function init_read_body()
+        if ngx.var.request_method=="POST"  and  ngx.var.content_type and string.match(ngx.var.content_type,"application/x%-www%-form%-urlencoded.*") then
+          ngx.req.read_body()
+        end
+end
 ---- main
 function main()
 
    local  redirectPath = "/apigateway" ;
 
+   init_read_body()
+   
    local percentage = switch_controller.get_percentage()
    if percentage and percentage >= 1 then
         local uid = http_request.get_req_param("uid")