Class: CryptoTracker::Crypto

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(coin, currency) ⇒ Crypto

Returns a new instance of Crypto.



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# File 'lib/crypto_tracker/crypto.rb', line 7

def initialize(coin, currency)
  @coin = coin.downcase
  @currency = currency.downcase

  validate_inputs
end

Instance Attribute Details

#coin ⇒ Object (readonly)

Returns the value of attribute coin.



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# File 'lib/crypto_tracker/crypto.rb', line 5

def coin
  @coin
end

#currency ⇒ Object (readonly)

Returns the value of attribute currency.



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# File 'lib/crypto_tracker/crypto.rb', line 5

def currency
  @currency
end

Instance Method Details

#current_price ⇒ Object 



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# File 'lib/crypto_tracker/crypto.rb', line 14

def current_price
  response = Client.get("coins/#{coin}")
  price = response.dig('market_data', 'current_price', currency)

  return { error: 'Preço não disponível' } unless price

  { coin: coin, price: price, currency: currency, timestamp: Time.now }
end

#price_history(days) ⇒ Object 



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# File 'lib/crypto_tracker/crypto.rb', line 23

def price_history(days)
  response = Client.get("coins/#{coin}/market_chart", { vs_currency: currency, days: days })

  return { error: 'Histórico não disponível' } unless response['prices']

  response['prices'].map do |price_data|
    { timestamp: Time.at(price_data[0] / 1000), price: price_data[1] }
  end
end