Class: CurrentAstronauts::Astronauts

Inherits:
Object
  • Object
show all
Defined in:
lib/current_astronauts.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Astronauts

Returns a new instance of Astronauts.



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# File 'lib/current_astronauts.rb', line 9

def initialize
  if ENV['OPEN_NOTIFY_URL']
    @url = ENV['OPEN_NOTIFY_URL']
  else
    @url = 'http://api.open-notify.org/astros.json'
  end
  @data = nil
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/current_astronauts.rb', line 7

def data
  @data
end

Instance Method Details

#fetch ⇒ Object

Let’s go get some data



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# File 'lib/current_astronauts.rb', line 19

def fetch
  response = HTTParty.get(@url)
  if response.success?
    @data = response.parsed_response
  end
  response.code
end

#num ⇒ Object

How many astronauts in space?



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# File 'lib/current_astronauts.rb', line 37

def num
  success? ? @data['number'] : nil
end

#people ⇒ Object

List of astronauts and their craft, as an array of hashes



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# File 'lib/current_astronauts.rb', line 42

def people
  success? ? @data['people'] : nil
end

#print ⇒ Object

Print a formatted list of astronauts and their craft



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# File 'lib/current_astronauts.rb', line 47

def print
  unless success?
    return nil
  end
  nlen = "Name".length
  clen = "Craft".length
  @data['people'].each do |p|
    nlen = p['name'].length > nlen ? p['name'].length : nlen
    clen = p['craft'].length > clen ? p['craft'].length : clen
  end

  print_header(nlen, clen)
  @data['people'].each do |p|
    print_line(nlen, p['name'], clen, p['craft'])
  end
end

#success? ⇒ Boolean

Fetch succeeded and data message is ‘success’

Returns:

  • (Boolean) 


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# File 'lib/current_astronauts.rb', line 28

def success?
  stat = false
  if @data and @data['message'] == 'success'
    stat = true
  end
  return stat
end