Steps to follow :

1)	Open  cmd                                                               CMD  ( command prompt)
2)	Go to a new_folder		                               					CMD
3)	Pip install virtualenvwrapper					                        CMD
4)	Type  mkvirtualenv (Env.. Name)					                        CMD
5)	Pip install Django==1.10.1						                        CMD
6)	Open Git Bash and ( go to new_folder path ) and type Git init           GIT BASH
7)	Git clone https://github.com/vaibahvmathur/TechEdison                   GIT BASH
8)	change directory to  TechEdison/techapp (project folder)                CMD
9)  put the Tracking-Log.txt file in TechEdison\techapp folder under name log.txt
10) cd TechEdision (Project folder) 				  					    CMD
11)	Python manage.py runserver					                            CMD
12)	Type http://127.0.0.1:8000/techapp/  in webbrowser		                CMD

Question :

Create a web application and return the expected results via API.

	1.) Totally how many videos each user has played.

	2.) Totally how many courses each user has enrolled.

Logic :

1)  read user id ( let be uid ) :
	      a)  go through json data  
	      b)  if userid = uid and event_name = play_video  
             than increase play_video_counter by 1  with respect to uid

2) read user id ( let be uid) :
      a) go through json data
      b) if userid = uid and course id = x  
             get all unique course id list ( i,e  { uid : [x,y,z] } ) 
             total course for uid = len( uid_course_list)

Result :

1)  http://127.0.0.1:8000/techapp/log   API test in POSTMAN for post request
2)  http://127.0.0.1:8000/techapp/graph   webbrowser       

Attached :

Web Screenshot for graph and POSTMAN API snapshot Added