mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-11-17 17:57:40 +00:00
add basic simplex api and data loading services
need to update the data loading service to call /quote and provide lists of supported coins and fiats
This commit is contained in:
sneurlax
parent
9d6ec18057
commit
7c58a3a47e
2 changed files with 699 additions and 0 deletions
201
lib/services/buy/buy_data_loading_service.dart
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201
lib/services/buy/buy_data_loading_service.dart
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@ -0,0 +1,201 @@
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:stackwallet/providers/providers.dart';
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import 'package:stackwallet/services/buy/simplex/simplex_api.dart';
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import 'package:stackwallet/utilities/enums/coin_enum.dart';
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import 'package:stackwallet/utilities/logger.dart';
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class BuyDataLoadingService {
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Future<void> loadAll(WidgetRef ref, {Coin? coin}) async {
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try {
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await Future.wait([
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_loadFixedRateMarkets(ref, coin: coin),
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_loadChangeNowStandardCurrencies(ref, coin: coin),
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loadSimpleswapFixedRateCurrencies(ref),
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loadSimpleswapFloatingRateCurrencies(ref),
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]);
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} catch (e, s) {
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Logging.instance.log("BuyDataLoadingService.loadAll failed: $e\n$s",
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level: LogLevel.Error);
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}
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}
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Future<void> _loadFixedRateMarkets(WidgetRef ref, {Coin? coin}) async {
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if (ref.read(changeNowFixedInitialLoadStatusStateProvider.state).state ==
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ChangeNowLoadStatus.loading) {
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// already in progress so just
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return;
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}
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ref.read(changeNowFixedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.loading;
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final response3 =
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await ChangeNowAPI.instance.getAvailableFixedRateMarkets();
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if (response3.value != null) {
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ref
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.read(availableChangeNowCurrenciesProvider)
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.updateMarkets(response3.value!);
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if (ref.read(buyFormStateProvider).market == null) {
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String fromTicker = "btc";
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String toTicker = "xmr";
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if (coin != null) {
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fromTicker = coin.ticker.toLowerCase();
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}
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final matchingMarkets = response3.value!
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.where((e) => e.to == toTicker && e.from == fromTicker);
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if (matchingMarkets.isNotEmpty) {
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await ref
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.read(buyFormStateProvider)
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.updateMarket(matchingMarkets.first, true);
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}
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}
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} else {
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Logging.instance.log(
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"Failed to load changeNOW fixed rate markets: ${response3.exception?.errorMessage}",
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level: LogLevel.Error);
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ref.read(changeNowFixedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.failed;
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return;
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}
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ref.read(changeNowFixedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.success;
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}
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Future<void> _loadChangeNowStandardCurrencies(
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WidgetRef ref, {
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Coin? coin,
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}) async {
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if (ref
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.read(changeNowEstimatedInitialLoadStatusStateProvider.state)
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.state ==
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ChangeNowLoadStatus.loading) {
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// already in progress so just
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return;
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}
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ref.read(changeNowEstimatedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.loading;
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final response = await ChangeNowAPI.instance.getAvailableCurrencies();
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final response2 =
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await ChangeNowAPI.instance.getAvailableFloatingRatePairs();
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if (response.value != null) {
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ref
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.read(availableChangeNowCurrenciesProvider)
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.updateCurrencies(response.value!);
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if (response2.value != null) {
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ref
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.read(availableChangeNowCurrenciesProvider)
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.updateFloatingPairs(response2.value!);
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String fromTicker = "btc";
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String toTicker = "xmr";
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if (coin != null) {
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fromTicker = coin.ticker.toLowerCase();
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}
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if (response.value!.length > 1) {
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if (ref.read(buyFormStateProvider).from == null) {
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if (response.value!
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.where((e) => e.ticker == fromTicker)
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.isNotEmpty) {
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await ref.read(buyFormStateProvider).updateFrom(
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response.value!.firstWhere((e) => e.ticker == fromTicker),
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false);
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}
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}
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if (ref.read(buyFormStateProvider).to == null) {
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if (response.value!.where((e) => e.ticker == toTicker).isNotEmpty) {
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await ref.read(buyFormStateProvider).updateTo(
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response.value!.firstWhere((e) => e.ticker == toTicker),
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false);
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}
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}
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}
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} else {
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Logging.instance.log(
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"Failed to load changeNOW available floating rate pairs: ${response2.exception?.errorMessage}",
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level: LogLevel.Error);
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ref.read(changeNowEstimatedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.failed;
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return;
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}
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} else {
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Logging.instance.log(
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"Failed to load changeNOW currencies: ${response.exception?.errorMessage}",
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level: LogLevel.Error);
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await Future<void>.delayed(const Duration(seconds: 3));
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ref.read(changeNowEstimatedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.failed;
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return;
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}
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ref.read(changeNowEstimatedInitialLoadStatusStateProvider.state).state =
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ChangeNowLoadStatus.success;
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}
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Future<void> loadSimpleswapFloatingRateCurrencies(WidgetRef ref) async {
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final buy = SimpleSwapBuy();
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final responseCurrencies = await buy.getAllCurrencies(false);
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if (responseCurrencies.value != null) {
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ref
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.read(availableSimpleswapCurrenciesProvider)
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.updateFloatingCurrencies(responseCurrencies.value!);
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final responsePairs = await buy.getAllPairs(false);
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if (responsePairs.value != null) {
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ref
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.read(availableSimpleswapCurrenciesProvider)
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.updateFloatingPairs(responsePairs.value!);
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} else {
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Logging.instance.log(
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"loadSimpleswapFloatingRateCurrencies: $responsePairs",
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level: LogLevel.Warning,
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);
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}
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} else {
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Logging.instance.log(
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"loadSimpleswapFloatingRateCurrencies: $responseCurrencies",
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level: LogLevel.Warning,
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);
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}
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}
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Future<void> loadSimpleswapFixedRateCurrencies(WidgetRef ref) async {
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final buy = SimpleSwapBuy();
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final responseCurrencies = await buy.getAllCurrencies(true);
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if (responseCurrencies.value != null) {
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ref
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.read(availableSimpleswapCurrenciesProvider)
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.updateFixedCurrencies(responseCurrencies.value!);
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final responsePairs = await buy.getAllPairs(true);
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if (responsePairs.value != null) {
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ref
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.read(availableSimpleswapCurrenciesProvider)
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.updateFixedPairs(responsePairs.value!);
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} else {
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Logging.instance.log(
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"loadSimpleswapFixedRateCurrencies: $responsePairs",
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level: LogLevel.Warning,
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);
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}
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} else {
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Logging.instance.log(
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"loadSimpleswapFixedRateCurrencies: $responseCurrencies",
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level: LogLevel.Warning,
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);
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}
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}
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}
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498
lib/services/buy/simplex/simplex_api.dart
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498
lib/services/buy/simplex/simplex_api.dart
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@ -0,0 +1,498 @@
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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);
|
||||
// } catch (e, s) {
|
||||
// Logging.instance.log("_parseAvailableCurrenciesJson exception: $e\n$s",
|
||||
// level: LogLevel.Error);
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException(
|
||||
// e.toString(),
|
||||
// ExchangeExceptionType.generic,
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// /// returns the estimated amount as a string
|
||||
// Future<ExchangeResponse<String>> getEstimated({
|
||||
// required bool isFixedRate,
|
||||
// required String currencyFrom,
|
||||
// required String currencyTo,
|
||||
// required String amount,
|
||||
// String? apiKey,
|
||||
// }) async {
|
||||
// final uri = _buildUri(
|
||||
// "/get_estimated",
|
||||
// {
|
||||
// "api_key": apiKey ?? kSimplexApiKey,
|
||||
// "fixed": isFixedRate.toString(),
|
||||
// "currency_from": currencyFrom,
|
||||
// "currency_to": currencyTo,
|
||||
// "amount": amount,
|
||||
// },
|
||||
// );
|
||||
//
|
||||
// try {
|
||||
// final jsonObject = await _makeGetRequest(uri);
|
||||
//
|
||||
// return ExchangeResponse(value: jsonObject as String);
|
||||
// } catch (e, s) {
|
||||
// Logging.instance
|
||||
// .log("getEstimated exception: $e\n$s", level: LogLevel.Error);
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException(
|
||||
// e.toString(),
|
||||
// ExchangeExceptionType.generic,
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// /// returns the exchange for the given id
|
||||
// Future<ExchangeResponse<Trade>> getExchange({
|
||||
// required String exchangeId,
|
||||
// String? apiKey,
|
||||
// Trade? oldTrade,
|
||||
// }) async {
|
||||
// final uri = _buildUri(
|
||||
// "/get_exchange",
|
||||
// {
|
||||
// "api_key": apiKey ?? kSimplexApiKey,
|
||||
// "id": exchangeId,
|
||||
// },
|
||||
// );
|
||||
//
|
||||
// try {
|
||||
// final jsonObject = await _makeGetRequest(uri);
|
||||
//
|
||||
// final json = Map<String, dynamic>.from(jsonObject as Map);
|
||||
// final ts = DateTime.parse(json["timestamp"] as String);
|
||||
// final trade = Trade(
|
||||
// uuid: oldTrade?.uuid ?? const Uuid().v1(),
|
||||
// tradeId: json["id"] as String,
|
||||
// rateType: json["type"] as String,
|
||||
// direction: "direct",
|
||||
// timestamp: ts,
|
||||
// updatedAt: DateTime.tryParse(json["updated_at"] as String? ?? "") ?? ts,
|
||||
// payInCurrency: json["currency_from"] as String,
|
||||
// payInAmount: json["amount_from"] as String,
|
||||
// payInAddress: json["address_from"] as String,
|
||||
// payInNetwork: "",
|
||||
// payInExtraId: json["extra_id_from"] as String? ?? "",
|
||||
// payInTxid: json["tx_from"] as String? ?? "",
|
||||
// payOutCurrency: json["currency_to"] as String,
|
||||
// payOutAmount: json["amount_to"] as String,
|
||||
// payOutAddress: json["address_to"] as String,
|
||||
// payOutNetwork: "",
|
||||
// payOutExtraId: json["extra_id_to"] as String? ?? "",
|
||||
// payOutTxid: json["tx_to"] as String? ?? "",
|
||||
// refundAddress: json["user_refund_address"] as String,
|
||||
// refundExtraId: json["user_refund_extra_id"] as String,
|
||||
// status: json["status"] as String,
|
||||
// exchangeName: SimplexExchange.exchangeName,
|
||||
// );
|
||||
//
|
||||
// return ExchangeResponse(value: trade);
|
||||
// } catch (e, s) {
|
||||
// Logging.instance
|
||||
// .log("getExchange exception: $e\n$s", level: LogLevel.Error);
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException(
|
||||
// e.toString(),
|
||||
// ExchangeExceptionType.generic,
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// /// returns the minimal exchange amount
|
||||
// Future<ExchangeResponse<Range>> getRange({
|
||||
// required bool isFixedRate,
|
||||
// required String currencyFrom,
|
||||
// required String currencyTo,
|
||||
// String? apiKey,
|
||||
// }) async {
|
||||
// final uri = _buildUri(
|
||||
// "/get_ranges",
|
||||
// {
|
||||
// "api_key": apiKey ?? kSimplexApiKey,
|
||||
// "fixed": isFixedRate.toString(),
|
||||
// "currency_from": currencyFrom,
|
||||
// "currency_to": currencyTo,
|
||||
// },
|
||||
// );
|
||||
//
|
||||
// try {
|
||||
// final jsonObject = await _makeGetRequest(uri);
|
||||
//
|
||||
// final json = Map<String, dynamic>.from(jsonObject as Map);
|
||||
// return ExchangeResponse(
|
||||
// value: Range(
|
||||
// max: Decimal.tryParse(json["max"] as String? ?? ""),
|
||||
// min: Decimal.tryParse(json["min"] as String? ?? ""),
|
||||
// ),
|
||||
// );
|
||||
// } catch (e, s) {
|
||||
// Logging.instance.log("getRange exception: $e\n$s", level: LogLevel.Error);
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException(
|
||||
// e.toString(),
|
||||
// ExchangeExceptionType.generic,
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// Future<ExchangeResponse<List<FixedRateMarket>>> getFixedRateMarketInfo({
|
||||
// String? apiKey,
|
||||
// }) async {
|
||||
// final uri = _buildUri(
|
||||
// "/get_market_info",
|
||||
// null,
|
||||
// // {
|
||||
// // "api_key": apiKey ?? kSimplexApiKey,
|
||||
// // "fixed": isFixedRate.toString(),
|
||||
// // "currency_from": currencyFrom,
|
||||
// // "currency_to": currencyTo,
|
||||
// // },
|
||||
// );
|
||||
//
|
||||
// try {
|
||||
// final jsonArray = await _makeGetRequest(uri);
|
||||
//
|
||||
// try {
|
||||
// final result = await compute(
|
||||
// _parseFixedRateMarketsJson,
|
||||
// jsonArray as List,
|
||||
// );
|
||||
// return result;
|
||||
// } catch (e, s) {
|
||||
// Logging.instance.log("getAvailableFixedRateMarkets exception: $e\n$s",
|
||||
// level: LogLevel.Error);
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException(
|
||||
// "Error: $jsonArray",
|
||||
// ExchangeExceptionType.serializeResponseError,
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// } catch (e, s) {
|
||||
// Logging.instance.log("getAvailableFixedRateMarkets exception: $e\n$s",
|
||||
// level: LogLevel.Error);
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException(
|
||||
// e.toString(),
|
||||
// ExchangeExceptionType.generic,
|
||||
// ),
|
||||
// );
|
||||
// }
|
||||
// }
|
||||
//
|
||||
// ExchangeResponse<List<FixedRateMarket>> _parseFixedRateMarketsJson(
|
||||
// List<dynamic> jsonArray) {
|
||||
// try {
|
||||
// final List<FixedRateMarket> markets = [];
|
||||
// for (final json in jsonArray) {
|
||||
// try {
|
||||
// final map = Map<String, dynamic>.from(json as Map);
|
||||
// markets.add(FixedRateMarket(
|
||||
// from: map["currency_from"] as String,
|
||||
// to: map["currency_to"] as String,
|
||||
// min: Decimal.parse(map["min"] as String),
|
||||
// max: Decimal.parse(map["max"] as String),
|
||||
// rate: Decimal.parse(map["rate"] as String),
|
||||
// minerFee: null,
|
||||
// ));
|
||||
// } catch (_) {
|
||||
// return ExchangeResponse(
|
||||
// exception: ExchangeException("Failed to serialize $json",
|
||||
// ExchangeExceptionType.serializeResponseError));
|
||||
// }
|
||||
// }
|
||||
// return ExchangeResponse(value: markets);
|
||||
// } catch (_) {
|
||||
// rethrow;
|
||||
// }
|
||||
// }
|
||||
}
|
||||
Loading…
Reference in a new issue