Developing reporting engine in nodejs

Question

this may be a little clean and green, however I am hoping to report a reporting engine similar to jasperjs on JS.

reporting meaning:

1. defining reports
2. built-in "renderers"
3. entering of chart data in a standardised format
4. building a simple API, allowing for the creation of chart exports

Would appreciate a rough gauge of the difficulty level. And advice if I should propose django as opposed to nodejs.

this is my first job after graduation at college and will take all the help I can get.

thanks for reading.

good reading:

1. Node vs python for creating RESTful webservices
2. http://www.brandttechnologies.com/papers/121106f_2012141_Using_Node_In_Reporting_System.pdf