cake_wallet/lib/buy/moonpay/moonpay_buy_provider.dart

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3.9 KiB
Dart

import 'dart:convert';
import 'package:cake_wallet/buy/buy_exception.dart';
import 'package:http/http.dart';
import 'package:cake_wallet/buy/buy_amount.dart';
import 'package:cake_wallet/buy/buy_provider.dart';
import 'package:cake_wallet/buy/buy_provider_description.dart';
import 'package:cake_wallet/buy/order.dart';
import 'package:cake_wallet/core/wallet_base.dart';
import 'package:cake_wallet/entities/wallet_type.dart';
import 'package:cake_wallet/exchange/trade_state.dart';
import 'package:cake_wallet/.secrets.g.dart' as secrets;
class MoonPayBuyProvider extends BuyProvider {
MoonPayBuyProvider({WalletBase wallet, bool isTestEnvironment = false})
: super(wallet: wallet, isTestEnvironment: isTestEnvironment) {
baseApiUrl = isTestEnvironment
? _baseTestApiUrl
: _baseProductApiUrl;
}
static const _baseTestApiUrl = 'https://buy-staging.moonpay.com';
static const _baseProductApiUrl = 'https://api.moonpay.com';
static const _currenciesSuffix = '/v3/currencies';
static const _quoteSuffix = '/buy_quote';
static const _transactionsSuffix = '/v1/transactions';
static const _apiKey = secrets.moonPayApiKey;
@override
String get title => 'MoonPay';
@override
BuyProviderDescription get description => BuyProviderDescription.moonPay;
String get currencyCode =>
walletTypeToCryptoCurrency(walletType).title.toLowerCase();
@override
String get trackUrl => baseApiUrl + '/transaction_receipt?transactionId=';
String baseApiUrl;
@override
Future<String> requestUrl(String amount, String sourceCurrency) async {
final enabledPaymentMethods =
'credit_debit_card%2Capple_pay%2Cgoogle_pay%2Csamsung_pay'
'%2Csepa_bank_transfer%2Cgbp_bank_transfer%2Cgbp_open_banking_payment';
final originalUrl = baseApiUrl + '?apiKey=' + _apiKey + '&currencyCode=' +
currencyCode + '&enabledPaymentMethods=' + enabledPaymentMethods +
'&walletAddress=' + walletAddress +
'&baseCurrencyCode=' + sourceCurrency.toLowerCase() +
'&baseCurrencyAmount=' + amount + '&lockAmount=true' +
'&showAllCurrencies=false' + '&showWalletAddressForm=false';
return originalUrl;
}
@override
Future<BuyAmount> calculateAmount(String amount, String sourceCurrency) async {
final url = _baseProductApiUrl + _currenciesSuffix + '/$currencyCode' +
_quoteSuffix + '/?apiKey=' + _apiKey +
'&baseCurrencyAmount=' + amount +
'&baseCurrencyCode' + sourceCurrency.toLowerCase();
final response = await get(url);
if (response.statusCode != 200) {
throw BuyException(
description: description,
text: 'Quote is not found!');
}
final responseJSON = json.decode(response.body) as Map<String, dynamic>;
final sourceAmount = responseJSON['totalAmount'] as double;
final destAmount = responseJSON['quoteCurrencyAmount'] as double;
return BuyAmount(sourceAmount: sourceAmount, destAmount: destAmount);
}
@override
Future<Order> findOrderById(String id) async {
final url = _baseProductApiUrl + _transactionsSuffix + '/$id' +
'?apiKey=' + _apiKey;
final response = await get(url);
if (response.statusCode != 200) {
throw BuyException(
description: description,
text: 'Transaction $id is not found!');
}
final responseJSON = json.decode(response.body) as Map<String, dynamic>;
final status = responseJSON['status'] as String;
final state = TradeState.deserialize(raw: status);
final createdAtRaw = responseJSON['createdAt'] as String;
final createdAt = DateTime.parse(createdAtRaw).toLocal();
final amount = responseJSON['quoteCurrencyAmount'] as double;
return Order(
id: id,
provider: description,
transferId: id,
state: state,
createdAt: createdAt,
amount: amount.toString(),
receiveAddress: walletAddress,
walletId: walletId
);
}
}