mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-09-30 10:21:17 +00:00
7c58a3a47e
need to update the data loading service to call /quote and provide lists of supported coins and fiats
498 lines
16 KiB
Dart
498 lines
16 KiB
Dart
import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:http/http.dart' as http;
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// import 'package:stackwallet/models/exchange/response_objects/fixed_rate_market.dart';
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// import 'package:stackwallet/models/exchange/response_objects/pair.dart';
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// import 'package:stackwallet/models/exchange/response_objects/range.dart';
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// import 'package:stackwallet/models/exchange/response_objects/trade.dart';
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import 'package:stackwallet/models/buy/response_objects/fiat.dart';
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// import 'package:stackwallet/models/buy/response_objects/crypto.dart';
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import 'package:stackwallet/services/buy/buy_response.dart';
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import 'package:stackwallet/utilities/logger.dart';
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class SimplexAPI {
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static const String scheme = "https";
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static const String authority = "sandbox-api.stackwallet.com";
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SimplexAPI._();
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static final SimplexAPI _instance = SimplexAPI._();
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static SimplexAPI get instance => _instance;
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/// set this to override using standard http client. Useful for testing
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http.Client? client;
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Uri _buildUri(String path, Map<String, String>? params) {
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return Uri.https(authority, path, params);
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}
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Future<dynamic> _makeGetRequest(Uri uri) async {
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final client = this.client ?? http.Client();
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int code = -1;
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try {
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final response = await client.get(
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uri,
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);
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code = response.statusCode;
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final parsed = jsonDecode(response.body);
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return parsed;
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} catch (e, s) {
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Logging.instance.log(
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"_makeRequest($uri) HTTP:$code threw: $e\n$s",
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level: LogLevel.Error,
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);
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rethrow;
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}
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}
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Future<dynamic> _makePostRequest(
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Uri uri,
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Map<String, dynamic> body,
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) async {
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final client = this.client ?? http.Client();
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try {
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final response = await client.post(
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uri,
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headers: {'Content-Type': 'application/json'},
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body: jsonEncode(body),
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);
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if (response.statusCode == 200) {
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final parsed = jsonDecode(response.body);
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return parsed;
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}
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throw Exception("response: ${response.body}");
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} catch (e, s) {
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Logging.instance
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.log("_makeRequest($uri) threw: $e\n$s", level: LogLevel.Error);
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rethrow;
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}
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}
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// Future<ExchangeResponse<Trade>> createNewExchange({
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// required bool isFixedRate,
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// required String currencyFrom,
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// required String currencyTo,
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// required String addressTo,
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// required String userRefundAddress,
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// required String userRefundExtraId,
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// required String amount,
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// String? extraIdTo,
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// String? apiKey,
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// }) async {
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// Map<String, dynamic> body = {
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// "fixed": isFixedRate,
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// "currency_from": currencyFrom,
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// "currency_to": currencyTo,
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// "addressTo": addressTo,
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// "userRefundAddress": userRefundAddress,
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// "userRefundExtraId": userRefundExtraId,
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// "amount": double.parse(amount),
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// "extraIdTo": extraIdTo,
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// };
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//
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// final uri =
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// _buildUri("/create_exchange", {"api_key": apiKey ?? kSimplexApiKey});
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//
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// try {
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// final jsonObject = await _makePostRequest(uri, body);
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//
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// final json = Map<String, dynamic>.from(jsonObject as Map);
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// final trade = Trade(
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// uuid: const Uuid().v1(),
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// tradeId: json["id"] as String,
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// rateType: json["type"] as String,
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// direction: "direct",
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// timestamp: DateTime.parse(json["timestamp"] as String),
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// updatedAt: DateTime.parse(json["updated_at"] as String),
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// payInCurrency: json["currency_from"] as String,
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// payInAmount: json["amount_from"] as String,
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// payInAddress: json["address_from"] as String,
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// payInNetwork: "",
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// payInExtraId: json["extra_id_from"] as String? ?? "",
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// payInTxid: json["tx_from"] as String? ?? "",
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// payOutCurrency: json["currency_to"] as String,
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// payOutAmount: json["amount_to"] as String,
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// payOutAddress: json["address_to"] as String,
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// payOutNetwork: "",
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// payOutExtraId: json["extra_id_to"] as String? ?? "",
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// payOutTxid: json["tx_to"] as String? ?? "",
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// refundAddress: json["user_refund_address"] as String,
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// refundExtraId: json["user_refund_extra_id"] as String,
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// status: json["status"] as String,
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// exchangeName: SimplexExchange.exchangeName,
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// );
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// return ExchangeResponse(value: trade, exception: null);
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// } catch (e, s) {
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// Logging.instance.log("getAvailableCurrencies exception: $e\n$s",
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// level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// value: null,
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// );
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// }
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// }
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Future<BuyResponse<List<Fiat>>> getAllCurrencies({
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String? apiKey,
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required bool fixedRate,
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}) async {
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final uri = _buildUri("/quote", {});
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try {
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final jsonArray = await _makeGetRequest(uri);
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return await compute(_parseAvailableCurrenciesJson, jsonArray as List);
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} catch (e, s) {
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Logging.instance.log("getAvailableCurrencies exception: $e\n$s",
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level: LogLevel.Error);
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return BuyResponse(
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exception: BuyException(
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e.toString(),
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BuyExceptionType.generic,
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),
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);
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}
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}
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BuyResponse<List<Fiat>> _parseAvailableCurrenciesJson(
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List<dynamic> jsonArray) {
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try {
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List<Fiat> currencies = [];
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for (final json in jsonArray) {
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try {
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currencies.add(Fiat.fromJson(Map<String, dynamic>.from(json as Map)));
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} catch (_) {
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return BuyResponse(
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exception: BuyException("Failed to serialize $json",
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BuyExceptionType.serializeResponseError));
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}
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}
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return BuyResponse(value: currencies);
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} catch (e, s) {
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Logging.instance.log("_parseAvailableCurrenciesJson exception: $e\n$s",
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level: LogLevel.Error);
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return BuyResponse(
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exception: BuyException(
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e.toString(),
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BuyExceptionType.generic,
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),
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);
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}
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}
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// Future<ExchangeResponse<SPCurrency>> getCurrency({
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// required String symbol,
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// String? apiKey,
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// }) async {
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// final uri = _buildUri(
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// "/get_currency",
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// {
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// "api_key": apiKey ?? kSimplexApiKey,
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// "symbol": symbol,
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// },
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// );
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//
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// try {
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// final jsonObject = await _makeGetRequest(uri);
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//
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// return ExchangeResponse(
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// value: SPCurrency.fromJson(
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// Map<String, dynamic>.from(jsonObject as Map)));
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// } catch (e, s) {
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// Logging.instance
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// .log("getCurrency exception: $e\n$s", level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// /// returns a map where the key currency symbol is a valid pair with any of
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// /// the symbols in its value list
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// Future<ExchangeResponse<List<Pair>>> getAllPairs({
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// required bool isFixedRate,
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// String? apiKey,
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// }) async {
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// final uri = _buildUri(
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// "/get_all_pairs",
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// {
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// "api_key": apiKey ?? kSimplexApiKey,
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// "fixed": isFixedRate.toString(),
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// },
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// );
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//
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// try {
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// final jsonObject = await _makeGetRequest(uri);
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// final result = await compute(
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// _parseAvailablePairsJson,
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// Tuple2(jsonObject as Map, isFixedRate),
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// );
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// return result;
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// } catch (e, s) {
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// Logging.instance
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// .log("getAllPairs exception: $e\n$s", level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// ExchangeResponse<List<Pair>> _parseAvailablePairsJson(
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// Tuple2<Map<dynamic, dynamic>, bool> args,
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// ) {
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// try {
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// List<Pair> pairs = [];
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//
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// for (final entry in args.item1.entries) {
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// try {
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// final from = entry.key as String;
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// for (final to in entry.value as List) {
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// pairs.add(
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// Pair(
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// from: from,
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// fromNetwork: "",
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// to: to as String,
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// toNetwork: "",
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// fixedRate: args.item2,
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// floatingRate: !args.item2,
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// ),
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// );
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// }
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// } catch (_) {
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// return ExchangeResponse(
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// exception: ExchangeException("Failed to serialize $json",
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// ExchangeExceptionType.serializeResponseError));
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// }
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// }
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//
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// return ExchangeResponse(value: pairs);
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// } catch (e, s) {
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// Logging.instance.log("_parseAvailableCurrenciesJson exception: $e\n$s",
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// level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// /// returns the estimated amount as a string
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// Future<ExchangeResponse<String>> getEstimated({
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// required bool isFixedRate,
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// required String currencyFrom,
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// required String currencyTo,
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// required String amount,
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// String? apiKey,
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// }) async {
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// final uri = _buildUri(
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// "/get_estimated",
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// {
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// "api_key": apiKey ?? kSimplexApiKey,
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// "fixed": isFixedRate.toString(),
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// "currency_from": currencyFrom,
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// "currency_to": currencyTo,
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// "amount": amount,
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// },
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// );
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//
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// try {
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// final jsonObject = await _makeGetRequest(uri);
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//
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// return ExchangeResponse(value: jsonObject as String);
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// } catch (e, s) {
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// Logging.instance
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// .log("getEstimated exception: $e\n$s", level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// /// returns the exchange for the given id
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// Future<ExchangeResponse<Trade>> getExchange({
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// required String exchangeId,
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// String? apiKey,
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// Trade? oldTrade,
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// }) async {
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// final uri = _buildUri(
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// "/get_exchange",
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// {
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// "api_key": apiKey ?? kSimplexApiKey,
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// "id": exchangeId,
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// },
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// );
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//
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// try {
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// final jsonObject = await _makeGetRequest(uri);
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//
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// final json = Map<String, dynamic>.from(jsonObject as Map);
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// final ts = DateTime.parse(json["timestamp"] as String);
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// final trade = Trade(
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// uuid: oldTrade?.uuid ?? const Uuid().v1(),
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// tradeId: json["id"] as String,
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// rateType: json["type"] as String,
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// direction: "direct",
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// timestamp: ts,
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// updatedAt: DateTime.tryParse(json["updated_at"] as String? ?? "") ?? ts,
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// payInCurrency: json["currency_from"] as String,
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// payInAmount: json["amount_from"] as String,
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// payInAddress: json["address_from"] as String,
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// payInNetwork: "",
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// payInExtraId: json["extra_id_from"] as String? ?? "",
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// payInTxid: json["tx_from"] as String? ?? "",
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// payOutCurrency: json["currency_to"] as String,
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// payOutAmount: json["amount_to"] as String,
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// payOutAddress: json["address_to"] as String,
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// payOutNetwork: "",
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// payOutExtraId: json["extra_id_to"] as String? ?? "",
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// payOutTxid: json["tx_to"] as String? ?? "",
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// refundAddress: json["user_refund_address"] as String,
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// refundExtraId: json["user_refund_extra_id"] as String,
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// status: json["status"] as String,
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// exchangeName: SimplexExchange.exchangeName,
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// );
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//
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// return ExchangeResponse(value: trade);
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// } catch (e, s) {
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// Logging.instance
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// .log("getExchange exception: $e\n$s", level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// /// returns the minimal exchange amount
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// Future<ExchangeResponse<Range>> getRange({
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// required bool isFixedRate,
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// required String currencyFrom,
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// required String currencyTo,
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// String? apiKey,
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// }) async {
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// final uri = _buildUri(
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// "/get_ranges",
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// {
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// "api_key": apiKey ?? kSimplexApiKey,
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// "fixed": isFixedRate.toString(),
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// "currency_from": currencyFrom,
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// "currency_to": currencyTo,
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// },
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// );
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//
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// try {
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// final jsonObject = await _makeGetRequest(uri);
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//
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// final json = Map<String, dynamic>.from(jsonObject as Map);
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// return ExchangeResponse(
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// value: Range(
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// max: Decimal.tryParse(json["max"] as String? ?? ""),
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// min: Decimal.tryParse(json["min"] as String? ?? ""),
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// ),
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// );
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// } catch (e, s) {
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// Logging.instance.log("getRange exception: $e\n$s", level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// Future<ExchangeResponse<List<FixedRateMarket>>> getFixedRateMarketInfo({
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// String? apiKey,
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// }) async {
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// final uri = _buildUri(
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// "/get_market_info",
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// null,
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// // {
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// // "api_key": apiKey ?? kSimplexApiKey,
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// // "fixed": isFixedRate.toString(),
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// // "currency_from": currencyFrom,
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// // "currency_to": currencyTo,
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// // },
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// );
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//
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// try {
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// final jsonArray = await _makeGetRequest(uri);
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//
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// try {
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// final result = await compute(
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// _parseFixedRateMarketsJson,
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// jsonArray as List,
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// );
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// return result;
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// } catch (e, s) {
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// Logging.instance.log("getAvailableFixedRateMarkets exception: $e\n$s",
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// level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// "Error: $jsonArray",
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// ExchangeExceptionType.serializeResponseError,
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// ),
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// );
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// }
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// } catch (e, s) {
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// Logging.instance.log("getAvailableFixedRateMarkets exception: $e\n$s",
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// level: LogLevel.Error);
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// return ExchangeResponse(
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// exception: ExchangeException(
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// e.toString(),
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// ExchangeExceptionType.generic,
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// ),
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// );
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// }
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// }
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//
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// ExchangeResponse<List<FixedRateMarket>> _parseFixedRateMarketsJson(
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// List<dynamic> jsonArray) {
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// try {
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// final List<FixedRateMarket> markets = [];
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// for (final json in jsonArray) {
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// try {
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// final map = Map<String, dynamic>.from(json as Map);
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// markets.add(FixedRateMarket(
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// from: map["currency_from"] as String,
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// to: map["currency_to"] as String,
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// min: Decimal.parse(map["min"] as String),
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// max: Decimal.parse(map["max"] as String),
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// rate: Decimal.parse(map["rate"] as String),
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// minerFee: null,
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// ));
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// } catch (_) {
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// return ExchangeResponse(
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// exception: ExchangeException("Failed to serialize $json",
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// ExchangeExceptionType.serializeResponseError));
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// }
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// }
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// return ExchangeResponse(value: markets);
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// } catch (_) {
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// rethrow;
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// }
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// }
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}
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