Some LUA testing in Nginx

nginx.conf

location /test {
      content_by_lua '
          if ngx.var.arg_name == nil then
              ngx.say("name: missing")
          else
              ngx.say("name: [", ngx.var.arg_name, "]")
          end
      ';
  }
  
  location /website {
    internal;
    echo "website test";
  }
  
  location /sub {
    set $sub 'empty';
    content_by_lua '
      local res = ngx.location.capture("/website")
      ngx.say( res.body )
      ngx.var.sub = res.body
    ';
    
    # echo "$sub = ${sub}";
  }
  
  location /mysql {
    content_by_lua '
      local fwm = require "fifthgear.website"
      local mysql = require "resty.mysql"
      local website = fwm(mysql)
      
      local host = ngx.unescape_uri(ngx.var.host)
      local quoted_name = ngx.quote_sql_str(host)
      
      local path, err = website:getInfo(quoted_name)
      
      if err then
         ngx.exit(404)
      end
      
      ngx.say("result: " , path)
    ';
  }