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16 lines
494 B
Ruby
16 lines
494 B
Ruby
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# Defines the interface an exchange rate provider must implement
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module ExchangeRate::Provideable
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extend ActiveSupport::Concern
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FetchRateData = Data.define(:rate)
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FetchRatesData = Data.define(:rates)
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def fetch_exchange_rate(from:, to:, date:)
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raise NotImplementedError, "Subclasses must implement #fetch_exchange_rate"
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end
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def fetch_exchange_rates(from:, to:, start_date:, end_date:)
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raise NotImplementedError, "Subclasses must implement #fetch_exchange_rates"
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end
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end
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