Local server in node.js example

Hi, I followed your example and it works.
Can you teach me how to get reading from SparkFun Humidity and Temperature Sensor Breakout - Si7021 and display them on localhost instead of accelerometer.
I have the working ino file for my Si7021 sensor which is using particle.variable to display data on google spreadsheet.but i dont know how can i convert my project to localhost like yours.