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feat: integrate getOnramperSignature method and add support for retrieving Onramper signature (#2553)

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* feat: integrate `getOnramperSignature` method and add support for retrieving Onramper signature

* fix: make `getOnramperSignature` call asynchronous

* fix: normalize networkWallets parameter to lowercase [skip ci]
This commit is contained in:
Konstantin Ullrich
2025-10-02 18:45:30 +03:00
committed by GitHub
parent 2120d01475
commit 80bba64c26
1 changed files with 30 additions and 2 deletions
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lib/buy/onramper/onramper_buy_provider.dart
+30 -2
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@@ -29,6 +29,7 @@ class OnRamperBuyProvider extends BuyProvider {
static const _baseUrl = 'buy.onramper.com';
static const _baseApiUrl = 'api.onramper.com';
static const _cIdBaseUrl = 'exchange-helper.cakewallet.com';
static const quotes = '/quotes';
static const paymentTypes = '/payment-types';
static const supported = '/supported';
@@ -44,6 +45,8 @@ class OnRamperBuyProvider extends BuyProvider {
String get _apiKey => secrets.onramperApiKey;
String get _exchangeHelperApiKey => secrets.exchangeHelperApiKey;
@override
String get title => 'Onramper';
@@ -59,6 +62,24 @@ class OnRamperBuyProvider extends BuyProvider {
@override
bool get isAggregator => true;
Future<String> getOnramperSignature(String query) async {
final uri = Uri.https(_cIdBaseUrl, "/api/onramper");
final response = await ProxyWrapper().post(
clearnetUri: uri,
headers: {'Content-Type': 'application/json', 'x-api-key': _exchangeHelperApiKey},
body: json.encode({'query': query}),
);
if (response.statusCode == 200) {
return (jsonDecode(response.body) as Map<String, dynamic>)['signature'] as String;
} else {
throw Exception(
'Provider currently unavailable. Status: ${response.statusCode} ${response.body}');
}
}
Future<String?> getRecommendedPaymentType(bool isBuyAction) async {
final params = {'type': isBuyAction ? 'buy' : 'sell'};
@@ -261,6 +282,11 @@ class OnRamperBuyProvider extends BuyProvider {
final paymentMethod = quote.paymentType == PaymentType.unknown ? quote.customPaymentMethodType : normalizePaymentMethod(quote.paymentType);
final networkWallets =
'${_tagToNetwork(quote.cryptoCurrency.tag ?? quote.cryptoCurrency.title).toLowerCase()}:$cryptoCurrencyAddress';
final signature = await getOnramperSignature("networkWallets=$networkWallets");
final uri = Uri.https(_baseUrl, '', {
'apiKey': _apiKey,
'txnType': actionType,
@@ -270,7 +296,7 @@ class OnRamperBuyProvider extends BuyProvider {
'skipTransactionScreen': "true",
if (paymentMethod != null) 'txnPaymentMethod': paymentMethod,
'txnOnramp': quote.rampId,
'networkWallets': '${_tagToNetwork(quote.cryptoCurrency.tag ?? quote.cryptoCurrency.title)}:$cryptoCurrencyAddress',
'networkWallets': networkWallets,
'supportSwap': "false",
'primaryColor': primaryColor,
'secondaryColor': secondaryColor,
@@ -278,6 +304,7 @@ class OnRamperBuyProvider extends BuyProvider {
'primaryTextColor': primaryTextColor,
'secondaryTextColor': secondaryTextColor,
'cardColor': cardColor,
'signature': signature,
});
if (await canLaunchUrl(uri)) {
@@ -422,5 +449,6 @@ class OnRamperBuyProvider extends BuyProvider {
}
}
String getColorStr(Color color) => color.value.toRadixString(16).replaceAll(RegExp(r'^ff'), "");
String getColorStr(Color color) =>
color.toARGB32().toRadixString(16).replaceAll(RegExp(r'^ff'), "");
}