53 lines
1.5 KiB
Swift
53 lines
1.5 KiB
Swift
// This is free software: you can redistribute and/or modify it
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// under the terms of the GNU General Public License 3.0
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// as published by the Free Software Foundation https://fsf.org
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//
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// CoinbasePriceFetcher.swift
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// SatsPrice
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//
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// Created by Terry Yiu on 2/19/24.
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//
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import Foundation
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private struct CoinbasePriceResponse: Codable {
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let data: CoinbasePrice
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}
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private struct CoinbasePrice: Codable {
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let amount: String
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let base: String
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let currency: String
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}
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class CoinbasePriceFetcher : PriceFetcher {
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private static let urlString = "https://api.coinbase.com/v2/prices/BTC-USD/spot"
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private static let btc = "BTC"
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private static let usd = "USD"
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func btcToUsd() async throws -> Decimal? {
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do {
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guard let urlComponents = URLComponents(string: CoinbasePriceFetcher.urlString), let url = urlComponents.url else {
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return nil
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}
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let (data, _) = try await URLSession.shared.data(from: url, delegate: nil)
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let coinbasePriceResponse = try JSONDecoder().decode(CoinbasePriceResponse.self, from: data)
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let coinbasePrice = coinbasePriceResponse.data
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guard coinbasePrice.base == CoinbasePriceFetcher.btc && coinbasePrice.currency == CoinbasePriceFetcher.usd else {
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return nil
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}
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#if !SKIP
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return Decimal(string: coinbasePrice.amount)
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#else
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return Decimal(coinbasePrice.amount)
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#endif
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} catch {
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return nil
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}
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}
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}
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