gistfile1.rb

route = xRoute.get_route(params[:reference_latitude], params[:reference_longitude], params[:finish_latitude], params[:finish_longitude]) # call to xRoute /xroute/rs/XRoute/calculateRoute
standard_distance = route['info']['distance'].to_i
reachable_objects = xRoute.get_reachable_objects(route) # call to xRoute /xroute/rs/XRoute/searchForReachableObjects
parking_places = ParkingPlace.where(deleted: 0, id: reachable_objects.keys) # We get for our own database parking places 
parking_places.each do |parking_place|
  parking_place.detour_distance = reachable_objects[parking_place.id.to_s][:detour_time])  #Assign detour distance to parking places
end
parking_places = xRoute.get_driving_distance(parking_places, params[:reference_latitude], params[:reference_longitude]) # Get driving distances for all parking places
parking_places = remove_out_of_reach(params[:driving_time]) # We remove all parking places that are out of reach

parking_places = xRoute.remove_too_far_away(parking_places, params[:finish_latitude], params[:finish_longitude], standard_distance)
render json: parking_places.to_json

gistfile2.rb

# xRoute.remove_too_far_away
def self.remove_too_far_away(parking_places, finish_latitude, finish_longitude, standard_distance)
  url = URI.parse(CALCULATE_DISTANCE_URL)
  # ... code to setup http request
  # we are asking for driving distances from all parking places to finish location
  driving_distances = JSON.parse(response.body)

  parking_places_good = []
  parking_places.each_with_index do |parking_place,index|
    if driving_distances['matrixInfo'].present?
      parking_places_good << parking_place if ( (parking_place.driving_distance[:distance][:value].to_i + driving_distances['matrixInfo'][index]['distance'].to_i - standard_distance.to_i ) < 6000)
    end
  end

  parking_places_good
end

def self.get_reachable_objects(route)
  url = URI.parse(CALCULATE_REACHABLE_OBJECTS_URL)
  # ... code to setup http request
  res = JSON.parse(response.body)
  detours = Hash.new
  if res['reachableObject'].present?
    res['reachableObject'].each do |ro|
      detours[ro['object']['id']] = {detour_time: ro['routeInfo']}
    end
  end
  return detours
end