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salvadordeveloper
2021-05-27 15:59:34 -06:00
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lib/repository/crypto_repository.dart Normal file
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import 'package:cryptocurrency_app/constants/exceptions.dart';
import 'package:cryptocurrency_app/models/exchanges/exchange/exchange.dart';
import 'package:cryptocurrency_app/models/exchanges/exchanges_response/exchanges_response.dart';
import 'package:cryptocurrency_app/models/graph/graph/graph.dart';
import 'package:cryptocurrency_app/models/graph/graph_response/graph_response.dart';
import 'package:cryptocurrency_app/models/markets/market_response/market_response.dart';
import 'package:cryptocurrency_app/models/markets/pair/pair.dart';
import 'package:cryptocurrency_app/models/orderbook/orderbook/orderbook.dart';
import 'package:cryptocurrency_app/models/orderbook/orderbook_response/orderbook_response.dart';
import 'package:cryptocurrency_app/models/pair/pair_response/pair_response.dart';
import 'package:cryptocurrency_app/models/pair/pair_summary/pair_summary.dart';
import 'package:cryptocurrency_app/models/trades/trade/trade.dart';
import 'package:cryptocurrency_app/models/trades/trades_response.dart/trades_response.dart';
import 'package:dio/dio.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
final clientProvider = Provider((ref) => Dio(BaseOptions(headers: {
"X-CW-API-Key": env['API_KEY'],
}, baseUrl: 'https://api.cryptowat.ch')));
final cryptoRepository =
Provider<CryptoRepositoryAPI>((ref) => CryptoRepositoryAPI(ref.read));
abstract class CryptoRepository {
Future<List<Pair>> getPairs(String market);
Future<PairSummary> getPairSummary(String makeret, String pair);
Future<Graph> getPairGraph(String market, String pair,
{String periods, String after, String before});
Future<List<Exchange>> getExchanges();
Future<OrderBook> getOrderBook(String market, String pair);
Future<List<Trade>> getTrades(String market, String pair);
}
class CryptoRepositoryAPI implements CryptoRepository {
final Reader read;
CryptoRepositoryAPI(this.read);
@override
Future<List<Pair>> getPairs(String market, {CancelToken? cancelToken}) async {
try {
final response = await read(clientProvider)
.get('/markets/$market', cancelToken: cancelToken);
return MarketResponse.fromJson(response.data).result;
} on DioError catch (error) {
throw DataException.fromDioError(error);
}
}
@override
Future<PairSummary> getPairSummary(String market, String pair,
{CancelToken? cancelToken}) async {
try {
final response = await read(clientProvider)
.get('/markets/$market/$pair/summary', cancelToken: cancelToken);
return PairResponse.fromJson(response.data).result;
} on DioError catch (error) {
throw DataException.fromDioError(error);
}
}
@override
Future<OrderBook> getOrderBook(String market, String pair,
{CancelToken? cancelToken}) async {
try {
final response = await read(clientProvider)
.get('/markets/$market/$pair/orderbook', cancelToken: cancelToken);
return OrderBookResponse.fromJson(response.data).result;
} on DioError catch (error) {
throw DataException.fromDioError(error);
}
}
@override
Future<List<Trade>> getTrades(String market, String pair,
{CancelToken? cancelToken}) async {
try {
final response = await read(clientProvider)
.get('/markets/$market/$pair/trades', cancelToken: cancelToken);
return TradesResponse.fromJson(response.data).result!;
} on DioError catch (error) {
throw DataException.fromDioError(error);
}
}
@override
Future<Graph> getPairGraph(String market, String pair,
{String periods = "",
String after = "",
String before = "",
CancelToken? cancelToken}) async {
try {
final response = await read(clientProvider).get(
'/markets/$market/$pair/ohlc',
queryParameters: {
"periods": periods,
"after": after,
"before": before
},
cancelToken: cancelToken);
return GraphResponse.fromJson(response.data).result;
} on DioError catch (error) {
throw DataException.fromDioError(error);
}
}
@override
Future<List<Exchange>> getExchanges({CancelToken? cancelToken}) async {
try {
final response = await read(clientProvider)
.get('/exchanges', cancelToken: cancelToken);
return ExchangesResponse.fromJson(response.data).result;
} on DioError catch (error) {
throw DataException.fromDioError(error);
}
}
}