48 lines
1.3 KiB
Ruby
48 lines
1.3 KiB
Ruby
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# frozen_string_literal: true
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require "json"
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require "net/http"
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require "provider/adapters/adapter"
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class Provider
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module Adapters
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# Croatian National Bank. Fetches daily mid exchange rates (EUR-based)
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# via the v3 API. Historical HRK rates (pre-2023) are no longer available
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# as the v2 API was frozen after Croatia adopted the euro.
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class HNB < Adapter
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BASE_URL = "https://api.hnb.hr/tecajn-eur/v3"
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class << self
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def backfill_range = 90
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end
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def fetch(after: nil, upto: nil)
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url = URI(BASE_URL)
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params = {}
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params["datum-primjene-od"] = after.to_s if after
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params["datum-primjene-do"] = (upto || Date.today).to_s if after || upto
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url.query = URI.encode_www_form(params) unless params.empty?
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parse(Net::HTTP.get(url))
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end
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def parse(json)
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rows = JSON.parse(json)
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rows.filter_map do |row|
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date_str = row["datum_primjene"]
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rate_str = row["srednji_tecaj"]
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currency = row["valuta"]
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next unless date_str && rate_str && currency
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rate_value = Float(rate_str.tr(",", "."))
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next if rate_value.zero?
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date = Date.parse(date_str)
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{ date:, base: "EUR", quote: currency, rate: rate_value }
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end
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end
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end
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end
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end
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