ios afnetworking 应该怎样访问 ngx_lua 写的接口? POST请求

服务端代码如下

location /reg

{

default_type text/json;

client_max_body_size 100k;

client_body_buffer_size 100k;

set_form_input $mobile;

set_form_input $pwd;

set_by_lua $pwd 'return ngx.md5(ngx.var.pwd)';

echo_location /mysql "insert into users(`mobile`,`passwd`) values('$mobile','$pwd')";

}

location /mysql

{

internal;

drizzle_pass mysql_backend;

drizzle_module_header off;

drizzle_query $query_string;

rds_json on;

}