gem 'educatea', github: 'Educatea/educatea' 

ENV['EDUCATEA_APPID'] = "XXXXXXXXXX"
ENV['EDUCATEA_TOKEN'] = "XXXXXXXXXX"

# With ID:
Educatea.exercise(<EDUCATEA-EXERCISE-ID>)     

# Random:
Educatea.random

# Solve:
Educatea.solve(<YOUR-ANSWER>, <EDUCATEA-EX-TOKEN>, <EDUCATEA-EXERCISE-NAME>, <EXERCISE-LEVEL>)
# The token, name and level are provided when you ask for an exercise. See example bellow.

# Create an object giving an exercises ID:    
e = Educatea.exercise(5)   

# Now you can get the exercise data you like:   
e.generate_text
# => "Work out: 2 + 2"
e.answers
# => [4,-4,0,2]    
    
# You can also pass the object a level as an option:    
e = Educatea.exercise(5, options{level: 5})   
    
# You can easily ask for a random exercises of random level
e = Educatea.random
e.generate_text
# => "Work out: 8 x 8 x 8"
e.answers
# => [8,3,24,512]    
   
# And finally, you can ask Educatea to solve de exercise 
e = Educatea.random
ans = Educatea.solve(100, e.ex_token, e.name, e.level)
ans.correct
# => False