Couple of weeks ago I discovered NodeJS and I decided to come back to my old project and this time use this lightweight server to work as backend server. I couldn't find NodeJS database driver for Oracle but I decide to present performance data using DBMS_EPG and PL/SQL procedures. Data are taken from OraSASH (but it can be used for ASH/AWR as well) and encoded as JSON. Browser is using AJAX to call NodeJS and NodeJS is connecting to Oracle DB to take required data.
This project is on very early stage so stay tuned - you can find initial code here
Please find screen shots from VISASH project:
One instance view
Two instances view