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snowhite lib modules stock_market adapters finnhub.ex
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lib/modules/stock_market/adapters/finnhub.ex 

defmodule Snowhite.Modules.StockMarket.Adapters.Finnhub do

  @behaviour Snowhite.Modules.StockMarket.Adapter



  alias Snowhite.Modules.StockMarket.Symbol



  @impl Snowhite.Modules.StockMarket.Adapter

  def fetch_symbol(symbol, _options) do

    with {:ok, %Finnhub.Quote{current_price: current_price, change: change}} <-

           Finnhub.quote(symbol),

         false <- nil in [current_price, change] do

      %Symbol{symbol: symbol, value: current_price, change: change}

    else

      _ ->

        nil

    end

  end

end