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use kraken for EURXMR exchange rate (#637) 

combine with ECB rates for other fiat conversions
This commit is contained in:
m2049r 2019-11-17 00:42:57 +01:00 committed by GitHub
parent f637d7f617
commit 87d9a8cd95
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GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 1199 additions and 389 deletions
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12
app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java
View File

@ -50,9 +50,7 @@ import com.m2049r.xmrwallet.widget.Toolbar;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;
import timber.log.Timber;
@ -220,7 +218,7 @@ public class WalletFragment extends Fragment
// at this point selection is XMR in case of error
String displayB;
double amountA = Helper.getDecimalAmount(unlockedBalance).doubleValue();
if (!Helper.CRYPTO.equals(balanceCurrency)) { // not XMR
if (!Helper.BASE_CRYPTO.equals(balanceCurrency)) { // not XMR
double amountB = amountA * balanceRate;
displayB = Helper.getFormattedAmount(amountB, false);
} else { // XMR
@ -229,7 +227,7 @@ public class WalletFragment extends Fragment
showBalance(displayB);
}
String balanceCurrency = Helper.CRYPTO;
String balanceCurrency = Helper.BASE_CRYPTO;
double balanceRate = 1.0;
private final ExchangeApi exchangeApi = Helper.getExchangeApi();
@ -245,7 +243,7 @@ public class WalletFragment extends Fragment
Timber.d(currency);
if (!currency.equals(balanceCurrency) || (balanceRate <= 0)) {
showExchanging();
exchangeApi.queryExchangeRate(Helper.CRYPTO, currency,
exchangeApi.queryExchangeRate(Helper.BASE_CRYPTO, currency,
new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
@ -301,10 +299,10 @@ public class WalletFragment extends Fragment
public void exchange(final ExchangeRate exchangeRate) {
hideExchanging();
if (!Helper.CRYPTO.equals(exchangeRate.getBaseCurrency())) {
if (!Helper.BASE_CRYPTO.equals(exchangeRate.getBaseCurrency())) {
Timber.e("Not XMR");
sCurrency.setSelection(0, true);
balanceCurrency = Helper.CRYPTO;
balanceCurrency = Helper.BASE_CRYPTO;
balanceRate = 1.0;
} else {
int spinnerPosition = ((ArrayAdapter) sCurrency.getAdapter()).getPosition(exchangeRate.getQuoteCurrency());

8
app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendAmountWizardFragment.java
View File

@ -116,12 +116,12 @@ public class SendAmountWizardFragment extends SendWizardFragment {
sendListener.getTxData().setAmount(Wallet.SWEEP_ALL);
}
} else {
if (!etAmount.validate(maxFunds)) {
if (!etAmount.validate(maxFunds, 0)) {
return false;
}
if (sendListener != null) {
String xmr = etAmount.getAmount();
String xmr = etAmount.getNativeAmount();
if (xmr != null) {
sendListener.getTxData().setAmount(Wallet.getAmountFromString(xmr));
} else {
@ -148,8 +148,8 @@ public class SendAmountWizardFragment extends SendWizardFragment {
tvFunds.setText(getString(R.string.send_available,
getString(R.string.unknown_amount)));
}
// getAmount is null if exchange is in progress
if ((etAmount.getAmount() != null) && etAmount.getAmount().isEmpty()) {
// getNativeAmount is null if exchange is in progress
if ((etAmount.getNativeAmount() != null) && etAmount.getNativeAmount().isEmpty()) {
final BarcodeData data = sendListener.popBarcodeData();
if ((data != null) && (data.amount != null)) {
etAmount.setAmount(data.amount);

11
app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcAmountWizardFragment.java
View File

@ -31,7 +31,8 @@ import com.m2049r.xmrwallet.data.TxDataBtc;
import com.m2049r.xmrwallet.model.Wallet;
import com.m2049r.xmrwallet.util.Helper;
import com.m2049r.xmrwallet.util.OkHttpHelper;
import com.m2049r.xmrwallet.widget.ExchangeBtcEditText;
import com.m2049r.xmrwallet.widget.ExchangeEditText;
import com.m2049r.xmrwallet.widget.ExchangeOtherEditText;
import com.m2049r.xmrwallet.widget.SendProgressView;
import com.m2049r.xmrwallet.xmrto.XmrToError;
import com.m2049r.xmrwallet.xmrto.XmrToException;
@ -61,7 +62,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
}
private TextView tvFunds;
private ExchangeBtcEditText etAmount;
private ExchangeOtherEditText etAmount;
private TextView tvXmrToParms;
private SendProgressView evParams;
@ -97,7 +98,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
}
if (sendListener != null) {
TxDataBtc txDataBtc = (TxDataBtc) sendListener.getTxData();
String btcString = etAmount.getAmount();
String btcString = etAmount.getNativeAmount();
if (btcString != null) {
try {
double btc = Double.parseDouble(btcString);
@ -166,7 +167,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
getView().post(new Runnable() {
@Override
public void run() {
etAmount.setRate(1.0d / orderParameters.getPrice());
etAmount.setExchangeRate(1.0d / orderParameters.getPrice());
NumberFormat df = NumberFormat.getInstance(Locale.US);
df.setMaximumFractionDigits(6);
String min = df.format(orderParameters.getLowerLimit());
@ -206,7 +207,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
}
private void processOrderParmsError(final Exception ex) {
etAmount.setRate(0);
etAmount.setExchangeRate(0);
orderParameters = null;
maxBtc = 0;
minBtc = 0;

215
app/src/main/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeApiImpl.java Normal file
View File

@ -0,0 +1,215 @@
/*
* Copyright (c) 2019 m2049r@monerujo.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// https://developer.android.com/training/basics/network-ops/xml
package com.m2049r.xmrwallet.service.exchange.ecb;
import android.support.annotation.NonNull;
import android.support.annotation.VisibleForTesting;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeException;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import okhttp3.Call;
import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import timber.log.Timber;
public class ExchangeApiImpl implements ExchangeApi {
@NonNull
private final OkHttpClient okHttpClient;
@NonNull
private final HttpUrl baseUrl;
//so we can inject the mockserver url
@VisibleForTesting
public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient, @NonNull final HttpUrl baseUrl) {
this.okHttpClient = okHttpClient;
this.baseUrl = baseUrl;
}
public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient) {
this(okHttpClient, HttpUrl.parse("https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"));
// data is daily and is refreshed around 16:00 CET every working day
}
public static boolean isSameDay(Calendar calendar, Calendar anotherCalendar) {
return (calendar.get(Calendar.YEAR) == anotherCalendar.get(Calendar.YEAR)) &&
(calendar.get(Calendar.DAY_OF_YEAR) == anotherCalendar.get(Calendar.DAY_OF_YEAR));
}
@Override
public void queryExchangeRate(@NonNull final String baseCurrency, @NonNull final String quoteCurrency,
@NonNull final ExchangeCallback callback) {
if (!baseCurrency.equals("EUR")) {
callback.onError(new IllegalArgumentException("Only EUR supported as base"));
return;
}
if (baseCurrency.equals(quoteCurrency)) {
callback.onSuccess(new ExchangeRateImpl(quoteCurrency, 1.0, new Date()));
return;
}
if (fetchDate != null) { // we have data
boolean useCache = false;
// figure out if we can use the cached values
// data is daily and is refreshed around 16:00 CET every working day
Calendar now = Calendar.getInstance(TimeZone.getTimeZone("CET"));
int fetchWeekday = fetchDate.get(Calendar.DAY_OF_WEEK);
int fetchDay = fetchDate.get(Calendar.DAY_OF_YEAR);
int fetchHour = fetchDate.get(Calendar.HOUR_OF_DAY);
int today = now.get(Calendar.DAY_OF_YEAR);
int nowHour = now.get(Calendar.HOUR_OF_DAY);
if (
// was it fetched today before 16:00? assume no new data iff now < 16:00 as well
((today == fetchDay) && (fetchHour < 16) && (nowHour < 16))
// was it fetched after, 17:00? we can assume there is no newer data
|| ((today == fetchDay) && (fetchHour > 17))
|| ((today == fetchDay + 1) && (fetchHour > 17) && (nowHour < 16))
// is the data itself from today? there can be no newer data
|| (fxDate.get(Calendar.DAY_OF_YEAR) == today)
// was it fetched Sat/Sun? we can assume there is no newer data
|| ((fetchWeekday == Calendar.SATURDAY) || (fetchWeekday == Calendar.SUNDAY))
) { // return cached rate
try {
callback.onSuccess(getRate(quoteCurrency));
} catch (ExchangeException ex) {
callback.onError(ex);
}
return;
}
}
final Request httpRequest = createHttpRequest(baseUrl);
okHttpClient.newCall(httpRequest).enqueue(new okhttp3.Callback() {
@Override
public void onFailure(final Call call, final IOException ex) {
callback.onError(ex);
}
@Override
public void onResponse(final Call call, final Response response) throws IOException {
if (response.isSuccessful()) {
try {
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(response.body().byteStream());
doc.getDocumentElement().normalize();
parse(doc);
try {
callback.onSuccess(getRate(quoteCurrency));
} catch (ExchangeException ex) {
callback.onError(ex);
}
} catch (ParserConfigurationException | SAXException ex) {
Timber.w(ex);
callback.onError(new ExchangeException(ex.getLocalizedMessage()));
}
} else {
callback.onError(new ExchangeException(response.code(), response.message()));
}
}
});
}
private Request createHttpRequest(final HttpUrl url) {
return new Request.Builder()
.url(url)
.get()
.build();
}
final private Map<String, Double> fxEntries = new HashMap<>();
private Calendar fxDate = null;
private Calendar fetchDate = null;
synchronized private ExchangeRate getRate(String currency) throws ExchangeException {
Timber.e("Getting %s", currency);
final Double rate = fxEntries.get(currency);
if (rate == null) throw new ExchangeException(404, "Currency not supported: " + currency);
return new ExchangeRateImpl(currency, rate, fxDate.getTime());
}
private final static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
{
DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
}
private void parse(final Document xmlRootDoc) {
final Map<String, Double> entries = new HashMap<>();
Calendar date = Calendar.getInstance(TimeZone.getTimeZone("CET"));
try {
NodeList cubes = xmlRootDoc.getElementsByTagName("Cube");
for (int i = 0; i < cubes.getLength(); i++) {
Node node = cubes.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE) {
Element cube = (Element) node;
if (cube.hasAttribute("time")) { // a time Cube
final Date time = DATE_FORMAT.parse(cube.getAttribute("time"));
date.setTime(time);
} else if (cube.hasAttribute("currency")
&& cube.hasAttribute("rate")) { // a rate Cube
String currency = cube.getAttribute("currency");
double rate = Double.valueOf(cube.getAttribute("rate"));
entries.put(currency, rate);
} // else an empty Cube - ignore
}
}
} catch (ParseException ex) {
Timber.d(ex);
}
synchronized (this) {
if (date != null) {
fetchDate = Calendar.getInstance(TimeZone.getTimeZone("CET"));
fxDate = date;
fxEntries.clear();
fxEntries.putAll(entries);
}
// else don't change what we have
}
}
}

57
app/src/main/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeRateImpl.java Normal file
View File

@ -0,0 +1,57 @@
/*
* Copyright (c) 2019 m2049r et al.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.m2049r.xmrwallet.service.exchange.ecb;
import android.support.annotation.NonNull;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import java.util.Date;
class ExchangeRateImpl implements ExchangeRate {
private final Date date;
private final String baseCurrency = "EUR";
private final String quoteCurrency;
private final double rate;
@Override
public String getServiceName() {
return "ecb.europa.eu";
}
@Override
public String getBaseCurrency() {
return baseCurrency;
}
@Override
public String getQuoteCurrency() {
return quoteCurrency;
}
@Override
public double getRate() {
return rate;
}
ExchangeRateImpl(@NonNull final String quoteCurrency, double rate, @NonNull final Date date) {
super();
this.quoteCurrency = quoteCurrency;
this.rate = rate;
this.date = date;
}
}

49
app/src/main/java/com/m2049r/xmrwallet/service/exchange/coinmarketcap/ExchangeApiImpl.java → app/src/main/java/com/m2049r/xmrwallet/service/exchange/kraken/ExchangeApiImpl.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2018 m2049r et al.
* Copyright (c) 2017-2019 m2049r et al.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -14,7 +14,7 @@
* limitations under the License.
*/
package com.m2049r.xmrwallet.service.exchange.coinmarketcap;
package com.m2049r.xmrwallet.service.exchange.kraken;
import android.support.annotation.NonNull;
import android.support.annotation.VisibleForTesting;
@ -36,9 +36,9 @@ import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import timber.log.Timber;
public class ExchangeApiImpl implements ExchangeApi {
static final String CRYPTO_ID = "328";
@NonNull
private final OkHttpClient okHttpClient;
@ -47,14 +47,13 @@ public class ExchangeApiImpl implements ExchangeApi {
//so we can inject the mockserver url
@VisibleForTesting
ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient, final HttpUrl baseUrl) {
public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient, final HttpUrl baseUrl) {
this.okHttpClient = okHttpClient;
this.baseUrl = baseUrl;
}
public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient) {
this(okHttpClient, HttpUrl.parse("https://api.coinmarketcap.com/v2/ticker/"));
this(okHttpClient, HttpUrl.parse("https://api.kraken.com/0/public/Ticker"));
}
@Override
@ -66,29 +65,25 @@ public class ExchangeApiImpl implements ExchangeApi {
return;
}
boolean inverse = false;
String fiat = null;
boolean invertQuery;
if (baseCurrency.equals(Helper.CRYPTO)) {
fiat = quoteCurrency;
inverse = false;
}
if (quoteCurrency.equals(Helper.CRYPTO)) {
fiat = baseCurrency;
inverse = true;
}
if (fiat == null) {
callback.onError(new IllegalArgumentException("no fiat specified"));
if (Helper.BASE_CRYPTO.equals(baseCurrency)) {
invertQuery = false;
} else if (Helper.BASE_CRYPTO.equals(quoteCurrency)) {
invertQuery = true;
} else {
callback.onError(new IllegalArgumentException("no crypto specified"));
return;
}
final boolean swapAssets = inverse;
Timber.d("queryExchangeRate: i %b, b %s, q %s", invertQuery, baseCurrency, quoteCurrency);
final boolean invert = invertQuery;
final String base = invert ? quoteCurrency : baseCurrency;
final String quote = invert ? baseCurrency : quoteCurrency;
final HttpUrl url = baseUrl.newBuilder()
.addEncodedPathSegments(CRYPTO_ID + "/")
.addQueryParameter("convert", fiat)
.addQueryParameter("pair", base + (quote.equals("BTC") ? "XBT" : quote))
.build();
final Request httpRequest = createHttpRequest(url);
@ -104,13 +99,13 @@ public class ExchangeApiImpl implements ExchangeApi {
if (response.isSuccessful()) {
try {
final JSONObject json = new JSONObject(response.body().string());
final JSONObject metadata = json.getJSONObject("metadata");
if (!metadata.isNull("error")) {
final String errorMsg = metadata.getString("error");
final JSONArray jsonError = json.getJSONArray("error");
if (jsonError.length() > 0) {
final String errorMsg = jsonError.getString(0);
callback.onError(new ExchangeException(response.code(), errorMsg));
} else {
final JSONObject jsonResult = json.getJSONObject("data");
reportSuccess(jsonResult, swapAssets, callback);
final JSONObject jsonResult = json.getJSONObject("result");
reportSuccess(jsonResult, invert, callback);
}
} catch (JSONException ex) {
callback.onError(new ExchangeException(ex.getLocalizedMessage()));

43
app/src/main/java/com/m2049r/xmrwallet/service/exchange/coinmarketcap/ExchangeRateImpl.java → app/src/main/java/com/m2049r/xmrwallet/service/exchange/kraken/ExchangeRateImpl.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2018 m2049r et al.
* Copyright (c) 2017 m2049r et al.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -14,7 +14,7 @@
* limitations under the License.
*/
package com.m2049r.xmrwallet.service.exchange.coinmarketcap;
package com.m2049r.xmrwallet.service.exchange.kraken;
import android.support.annotation.NonNull;
@ -25,7 +25,6 @@ import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
@ -38,7 +37,7 @@ class ExchangeRateImpl implements ExchangeRate {
@Override
public String getServiceName() {
return "coinmarketcap.com";
return "kraken.com";
}
@Override
@ -65,21 +64,29 @@ class ExchangeRateImpl implements ExchangeRate {
ExchangeRateImpl(final JSONObject jsonObject, final boolean swapAssets) throws JSONException, ExchangeException {
try {
final String baseC = jsonObject.getString("symbol");
final JSONObject quotes = jsonObject.getJSONObject("quotes");
final Iterator<String> keys = quotes.keys();
String key = null;
// get key which is not USD unless it is the only one
while (keys.hasNext()) {
key = keys.next();
if (!key.equals("USD")) break;
final String key = jsonObject.keys().next(); // we expect only one
Pattern pattern = Pattern.compile("^X(.*?)Z(.*?)$");
Matcher matcher = pattern.matcher(key);
if (matcher.find()) {
baseCurrency = swapAssets ? matcher.group(2) : matcher.group(1);
quoteCurrency = swapAssets ? matcher.group(1) : matcher.group(2);
} else {
throw new ExchangeException("no pair returned!");
}
JSONObject pair = jsonObject.getJSONObject(key);
JSONArray close = pair.getJSONArray("c");
String closePrice = close.getString(0);
if (closePrice != null) {
try {
double rate = Double.parseDouble(closePrice);
this.rate = swapAssets ? (1 / rate) : rate;
} catch (NumberFormatException ex) {
throw new ExchangeException(ex.getLocalizedMessage());
}
} else {
throw new ExchangeException("no close price returned!");
}
final String quoteC = key;
baseCurrency = swapAssets ? quoteC : baseC;
quoteCurrency = swapAssets ? baseC : quoteC;
JSONObject quote = quotes.getJSONObject(key);
double price = quote.getDouble("price");
this.rate = swapAssets ? (1d / price) : price;
} catch (NoSuchElementException ex) {
throw new ExchangeException(ex.getLocalizedMessage());
}

99
app/src/main/java/com/m2049r/xmrwallet/service/exchange/krakenEcb/ExchangeApiImpl.java Normal file
View File

@ -0,0 +1,99 @@
/*
* Copyright (c) 2019 m2049r@monerujo.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// https://developer.android.com/training/basics/network-ops/xml
package com.m2049r.xmrwallet.service.exchange.krakenEcb;
import android.support.annotation.NonNull;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import com.m2049r.xmrwallet.util.Helper;
import okhttp3.OkHttpClient;
import timber.log.Timber;
/*
Gets the XMR/EUR rate from kraken and then gets the EUR/fiat rate from the ECB
*/
public class ExchangeApiImpl implements ExchangeApi {
static public final String BASE_FIAT = "EUR";
@NonNull
private final OkHttpClient okHttpClient;
public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient) {
this.okHttpClient = okHttpClient;
}
@Override
public void queryExchangeRate(@NonNull final String baseCurrency, @NonNull final String quoteCurrency,
@NonNull final ExchangeCallback callback) {
Timber.d("B=%s Q=%s", baseCurrency, quoteCurrency);
if (baseCurrency.equals(quoteCurrency)) {
Timber.d("BASE=QUOTE=1");
callback.onSuccess(new ExchangeRateImpl(baseCurrency, quoteCurrency, 1.0));
return;
}
if (!Helper.BASE_CRYPTO.equals(baseCurrency)
&& !Helper.BASE_CRYPTO.equals(quoteCurrency)) {
callback.onError(new IllegalArgumentException("no " + Helper.BASE_CRYPTO + " specified"));
return;
}
final String quote = Helper.BASE_CRYPTO.equals(baseCurrency) ? quoteCurrency : baseCurrency;
final ExchangeApi krakenApi =
new com.m2049r.xmrwallet.service.exchange.kraken.ExchangeApiImpl(okHttpClient);
krakenApi.queryExchangeRate(Helper.BASE_CRYPTO, BASE_FIAT, new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate krakenRate) {
Timber.d("kraken = %f", krakenRate.getRate());
final ExchangeApi ecbApi =
new com.m2049r.xmrwallet.service.exchange.ecb.ExchangeApiImpl(okHttpClient);
ecbApi.queryExchangeRate(BASE_FIAT, quote, new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate ecbRate) {
Timber.d("ECB = %f", ecbRate.getRate());
double rate = ecbRate.getRate() * krakenRate.getRate();
Timber.d("Q=%s QC=%s", quote, quoteCurrency);
if (!quote.equals(quoteCurrency)) rate = 1.0d / rate;
Timber.d("rate = %f", rate);
final ExchangeRate exchangeRate =
new ExchangeRateImpl(baseCurrency, quoteCurrency, rate);
callback.onSuccess(exchangeRate);
}
@Override
public void onError(Exception ex) {
Timber.d(ex);
callback.onError(ex);
}
});
}
@Override
public void onError(Exception ex) {
Timber.d(ex);
callback.onError(ex);
}
});
}
}

56
app/src/main/java/com/m2049r/xmrwallet/service/exchange/krakenEcb/ExchangeRateImpl.java Normal file
View File

@ -0,0 +1,56 @@
/*
* Copyright (c) 2019 m2049r et al.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.m2049r.xmrwallet.service.exchange.krakenEcb;
import android.support.annotation.NonNull;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import java.util.Date;
class ExchangeRateImpl implements ExchangeRate {
private final String baseCurrency;
private final String quoteCurrency;
private final double rate;
@Override
public String getServiceName() {
return "kraken+ecb";
}
@Override
public String getBaseCurrency() {
return baseCurrency;
}
@Override
public String getQuoteCurrency() {
return quoteCurrency;
}
@Override
public double getRate() {
return rate;
}
ExchangeRateImpl(@NonNull final String baseCurrency, @NonNull final String quoteCurrency, double rate) {
super();
this.baseCurrency = baseCurrency;
this.quoteCurrency = quoteCurrency;
this.rate = rate;
}
}

25
app/src/main/java/com/m2049r/xmrwallet/util/Helper.java
View File

@ -58,7 +58,6 @@ import android.widget.TextView;
import com.m2049r.xmrwallet.BuildConfig;
import com.m2049r.xmrwallet.R;
import com.m2049r.xmrwallet.model.NetworkType;
import com.m2049r.xmrwallet.model.Wallet;
import com.m2049r.xmrwallet.model.WalletManager;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
@ -85,7 +84,7 @@ public class Helper {
static public final String NOCRAZYPASS_FLAGFILE = ".nocrazypass";
static public final String CRYPTO = "XMR";
static public final String BASE_CRYPTO = "XMR";
static private final String WALLET_DIR = "monerujo" + FLAVOR_SUFFIX;
static private final String HOME_DIR = "monero" + FLAVOR_SUFFIX;
@ -207,22 +206,32 @@ public class Helper {
return d.toPlainString();
}
static public String getFormattedAmount(double amount, boolean isXmr) {
static public String getFormattedAmount(double amount, boolean isCrypto) {
// at this point selection is XMR in case of error
String displayB;
if (isXmr) { // XMR
long xmr = Wallet.getAmountFromDouble(amount);
if ((xmr > 0) || (amount == 0)) {
if (isCrypto) {
if ((amount >= 0) || (amount == 0)) {
displayB = String.format(Locale.US, "%,.5f", amount);
} else {
displayB = null;
}
} else { // not XMR
} else { // not crypto
displayB = String.format(Locale.US, "%,.2f", amount);
}
return displayB;
}
// min 2 significant digits after decimal point
static public String getFormattedAmount(double amount) {
if ((amount >= 1.0d) || (amount == 0))
return String.format(Locale.US, "%,.2f", amount);
else { // amount < 1
int decimals = 1 - (int) Math.floor(Math.log10(amount));
if (decimals > 12) decimals = 12;
return String.format(Locale.US, "%,." + decimals + "f", amount);
}
}
static public Bitmap getBitmap(Context context, int drawableId) {
Drawable drawable = ContextCompat.getDrawable(context, drawableId);
if (drawable instanceof BitmapDrawable) {
@ -624,7 +633,7 @@ public class Helper {
}
static public ExchangeApi getExchangeApi() {
return new com.m2049r.xmrwallet.service.exchange.coinmarketcap.ExchangeApiImpl(OkHttpHelper.getOkHttpClient());
return new com.m2049r.xmrwallet.service.exchange.krakenEcb.ExchangeApiImpl(OkHttpHelper.getOkHttpClient());
}
public interface Action {

309
app/src/main/java/com/m2049r/xmrwallet/widget/ExchangeEditText.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017 m2049r
* Copyright (c) 2017-2019 m2049r
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -27,6 +27,7 @@ import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
@ -35,42 +36,40 @@ import android.widget.Spinner;
import android.widget.TextView;
import com.m2049r.xmrwallet.R;
import com.m2049r.xmrwallet.model.Wallet;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import com.m2049r.xmrwallet.util.Helper;
import java.util.Locale;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import timber.log.Timber;
public class ExchangeEditText extends LinearLayout {
String xmrAmount = null;
String notXmrAmount = null;
void setXmr(String xmr) {
xmrAmount = xmr;
if (onNewAmountListener != null) {
onNewAmountListener.onNewAmount(xmr);
private double getEnteredAmount() {
String enteredAmount = etAmountA.getText().toString();
try {
return Double.parseDouble(enteredAmount);
} catch (NumberFormatException ex) {
Timber.i(ex.getLocalizedMessage());
}
return 0;
}
public boolean validate(double max) {
public boolean validate(double max, double min) {
Timber.d("inProgress=%b", isExchangeInProgress());
if (isExchangeInProgress()) {
shakeExchangeField();
return false;
}
boolean ok = true;
if (xmrAmount != null) {
String enteredAmount = etAmountA.getText().toString();
try {
double amount = Double.parseDouble(xmrAmount);
if (amount > max) {
ok = false;
}
if (amount <= 0) { /////////////////////////////
double amount = Double.parseDouble(enteredAmount);
if ((amount < min) || (amount > max)) {
ok = false;
}
} catch (NumberFormatException ex) {
@ -78,9 +77,6 @@ public class ExchangeEditText extends LinearLayout {
Timber.e(ex.getLocalizedMessage());
ok = false;
}
} else {
ok = false;
}
if (!ok) {
shakeAmountField();
}
@ -95,22 +91,29 @@ public class ExchangeEditText extends LinearLayout {
tvAmountB.startAnimation(Helper.getShakeAnimation(getContext()));
}
public void setAmount(String xmrAmount) {
if (xmrAmount != null) {
setCurrencyA(0);
etAmountA.setText(xmrAmount);
setXmr(xmrAmount);
this.notXmrAmount = null;
public void setAmount(String nativeAmount) {
if (nativeAmount != null) {
etAmountA.setText(nativeAmount);
tvAmountB.setText(null);
if (sCurrencyA.getSelectedItemPosition() != 0)
sCurrencyA.setSelection(0, true); // set native currency & trigger exchange
else
doExchange();
} else {
setXmr(null);
this.notXmrAmount = null;
tvAmountB.setText(null);
}
}
public String getAmount() {
return xmrAmount;
public void setEditable(boolean editable) {
etAmountA.setEnabled(editable);
}
public String getNativeAmount() {
if (isExchangeInProgress()) return null;
if (sCurrencyA.getSelectedItemPosition() == 0)
return getCleanAmountString(etAmountA.getText().toString());
else
return getCleanAmountString(tvAmountB.getText().toString());
}
EditText etAmountA;
@ -120,23 +123,6 @@ public class ExchangeEditText extends LinearLayout {
ImageView evExchange;
ProgressBar pbExchange;
public void setCurrencyA(int currency) {
if ((currency != 0) && (getCurrencyB() != 0)) {
setCurrencyB(0);
}
sCurrencyA.setSelection(currency, true);
doExchange();
}
public void setCurrencyB(int currency) {
if ((currency != 0) && (getCurrencyA() != 0)) {
setCurrencyA(0);
}
sCurrencyB.setSelection(currency, true);
doExchange();
}
public int getCurrencyA() {
return sCurrencyA.getSelectedItemPosition();
}
@ -167,12 +153,32 @@ public class ExchangeEditText extends LinearLayout {
*
* @param context the current context for the view.
*/
private void initializeViews(Context context) {
void initializeViews(Context context) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.view_exchange_edit, this);
}
void setCurrencyAdapter(Spinner spinner) {
List<String> currencies = new ArrayList<>();
currencies.add(Helper.BASE_CRYPTO);
setCurrencyAdapter(spinner, currencies);
}
protected void setCurrencyAdapter(Spinner spinner, List<String> currencies) {
currencies.addAll(Arrays.asList(getResources().getStringArray(R.array.currency)));
ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_item, currencies);
spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(spinnerAdapter);
}
void setInitialSpinnerSelections(Spinner baseSpinner, Spinner quoteSpinner) {
baseSpinner.setSelection(0, true);
quoteSpinner.setSelection(0, true);
}
private boolean isInitialized = false;
@Override
protected void onFinishInflate() {
super.onFinishInflate();
@ -198,16 +204,28 @@ public class ExchangeEditText extends LinearLayout {
evExchange = findViewById(R.id.evExchange);
pbExchange = findViewById(R.id.pbExchange);
setCurrencyAdapter(sCurrencyA);
setCurrencyAdapter(sCurrencyB);
post(new Runnable() {
@Override
public void run() {
setInitialSpinnerSelections(sCurrencyA, sCurrencyB);
isInitialized = true;
startExchange();
}
});
// make progress circle gray
pbExchange.getIndeterminateDrawable().
setColorFilter(getResources().getColor(R.color.trafficGray),
android.graphics.PorterDuff.Mode.MULTIPLY);
sCurrencyA.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
if (position != 0) { // if not XMR, select XMR on other
if (!isInitialized) return;
if (position != 0) { // if not native, select native on other
sCurrencyB.setSelection(0, true);
}
doExchange();
@ -222,7 +240,8 @@ public class ExchangeEditText extends LinearLayout {
sCurrencyB.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(final AdapterView<?> parentView, View selectedItemView, int position, long id) {
if (position != 0) { // if not XMR, select XMR on other
if (!isInitialized) return;
if (position != 0) { // if not native, select native on other
sCurrencyA.setSelection(0, true);
}
doExchange();
@ -235,43 +254,56 @@ public class ExchangeEditText extends LinearLayout {
});
}
public void doExchange() {
tvAmountB.setText(null);
// use cached exchange rate if we have it
if (!isExchangeInProgress()) {
String enteredCurrencyA = (String) sCurrencyA.getSelectedItem();
String enteredCurrencyB = (String) sCurrencyB.getSelectedItem();
if ((enteredCurrencyA + enteredCurrencyB).equals(assetPair)) {
if (prepareExchange()) {
exchange(assetRate);
} else {
clearAmounts();
private boolean exchangeRateCacheIsUsable() {
return (exchangeRateCache != null) &&
((exchangeRateCache.getBaseCurrency().equals(sCurrencyA.getSelectedItem()) &&
exchangeRateCache.getQuoteCurrency().equals(sCurrencyB.getSelectedItem())) ||
(exchangeRateCache.getBaseCurrency().equals(sCurrencyB.getSelectedItem()) &&
exchangeRateCache.getQuoteCurrency().equals(sCurrencyA.getSelectedItem())));
}
private double exchangeRateFromCache() {
if (!exchangeRateCacheIsUsable()) return 0;
if (exchangeRateCache.getBaseCurrency().equals(sCurrencyA.getSelectedItem())) {
return exchangeRateCache.getRate();
} else {
clearAmounts();
startExchange();
}
} else {
clearAmounts();
return 1.0d / exchangeRateCache.getRate();
}
}
private void clearAmounts() {
Timber.d("clearAmounts");
if ((xmrAmount != null) || (notXmrAmount != null)) {
public void doExchange() {
if (!isInitialized) return;
tvAmountB.setText(null);
setXmr(null);
notXmrAmount = null;
if (getCurrencyA() == getCurrencyB()) {
exchange(1);
return;
}
// use cached exchange rate if we have it
if (!isExchangeInProgress()) {
double rate = exchangeRateFromCache();
if (rate > 0) {
if (prepareExchange()) {
exchange(rate);
}
} else {
startExchange();
}
}
}
private final ExchangeApi exchangeApi = Helper.getExchangeApi();
// starts exchange through exchange api
void startExchange() {
showProgress();
String currencyA = (String) sCurrencyA.getSelectedItem();
String currencyB = (String) sCurrencyB.getSelectedItem();
exchangeApi.queryExchangeRate(currencyA, currencyB,
if ((currencyA == null) || (currencyB == null)) return; // nothing to do
execExchange(currencyA, currencyB);
}
void execExchange(String currencyA, String currencyB) {
showProgress();
queryExchangeRate(currencyA, currencyB,
new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
@ -297,35 +329,30 @@ public class ExchangeEditText extends LinearLayout {
});
}
public void exchange(double rate) {
Timber.d("%s / %s", xmrAmount, notXmrAmount);
if (getCurrencyA() == 0) {
if (xmrAmount == null) return;
if (!xmrAmount.isEmpty() && (rate > 0)) {
double amountB = rate * Double.parseDouble(xmrAmount);
notXmrAmount = Helper.getFormattedAmount(amountB, getCurrencyB() == 0);
void queryExchangeRate(final String base, final String quote, ExchangeCallback callback) {
exchangeApi.queryExchangeRate(base, quote, callback);
}
private void exchange(double rate) {
double amount = getEnteredAmount();
if (rate > 0) {
tvAmountB.setText(Helper.getFormattedAmount(rate * amount));
} else {
notXmrAmount = "";
tvAmountB.setText(null);
Timber.w("No rate!");
}
tvAmountB.setText(notXmrAmount);
Timber.d("%s / %s", xmrAmount, notXmrAmount);
} else if (getCurrencyB() == 0) {
if (notXmrAmount == null) return;
if (!notXmrAmount.isEmpty() && (rate > 0)) {
double amountB = rate * Double.parseDouble(notXmrAmount);
setXmr(Helper.getFormattedAmount(amountB, true));
}
private String getCleanAmountString(String enteredAmount) {
try {
double amount = Double.parseDouble(enteredAmount);
if (amount >= 0) {
return Helper.getFormattedAmount(amount);
} else {
setXmr("");
return null;
}
tvAmountB.setText(xmrAmount);
if (xmrAmount == null) {
shakeAmountField();
}
} else { // no XMR currency - cannot happen!
Timber.e("No XMR currency!");
setXmr(null);
notXmrAmount = null;
return;
} catch (NumberFormatException ex) {
return null;
}
}
@ -333,38 +360,14 @@ public class ExchangeEditText extends LinearLayout {
Timber.d("prepareExchange()");
String enteredAmount = etAmountA.getText().toString();
if (!enteredAmount.isEmpty()) {
String cleanAmount = "";
if (getCurrencyA() == 0) {
// sanitize the input
long xmr = Wallet.getAmountFromString(enteredAmount);
if (xmr >= 0) {
cleanAmount = Helper.getDisplayAmount(xmr);
} else {
cleanAmount = null;
}
setXmr(cleanAmount);
notXmrAmount = null;
String cleanAmount = getCleanAmountString(enteredAmount);
Timber.d("cleanAmount = %s", cleanAmount);
if (cleanAmount == null) {
shakeAmountField();
return false;
}
} else if (getCurrencyB() == 0) { // we use B & 0 here for the else below ...
// sanitize the input
double amountA = Double.parseDouble(enteredAmount);
cleanAmount = String.format(Locale.US, "%.2f", amountA);
setXmr(null);
notXmrAmount = cleanAmount;
} else { // no XMR currency - cannot happen!
Timber.e("No XMR currency!");
setXmr(null);
notXmrAmount = null;
return false;
}
Timber.d("prepareExchange() %s", cleanAmount);
} else {
setXmr("");
notXmrAmount = "";
return false;
}
return true;
}
@ -372,33 +375,30 @@ public class ExchangeEditText extends LinearLayout {
public void exchangeFailed() {
hideProgress();
exchange(0);
if (onFailedExchangeListener != null) {
onFailedExchangeListener.onFailedExchange();
}
}
String assetPair = null;
double assetRate = 0;
// cache for exchange rate
ExchangeRate exchangeRateCache = null;
public void exchange(ExchangeRate exchangeRate) {
hideProgress();
// first, make sure this is what we want
String enteredCurrencyA = (String) sCurrencyA.getSelectedItem();
String enteredCurrencyB = (String) sCurrencyB.getSelectedItem();
if (!exchangeRate.getBaseCurrency().equals(enteredCurrencyA)
|| !exchangeRate.getQuoteCurrency().equals(enteredCurrencyB)) {
// make sure this is what we want
if (!exchangeRate.getBaseCurrency().equals(sCurrencyA.getSelectedItem()) ||
!exchangeRate.getQuoteCurrency().equals(sCurrencyB.getSelectedItem())) {
// something's wrong
Timber.e("Currencies don't match!");
Timber.i("Currencies don't match! A: %s==%s B: %s==%s",
exchangeRate.getBaseCurrency(), sCurrencyA.getSelectedItem(),
exchangeRate.getQuoteCurrency(), sCurrencyB.getSelectedItem());
return;
}
assetPair = enteredCurrencyA + enteredCurrencyB;
assetRate = exchangeRate.getRate();
exchangeRateCache = exchangeRate;
if (prepareExchange()) {
exchange(exchangeRate.getRate());
}
}
private void showProgress() {
void showProgress() {
pbExchange.setVisibility(View.VISIBLE);
}
@ -409,35 +409,4 @@ public class ExchangeEditText extends LinearLayout {
private void hideProgress() {
pbExchange.setVisibility(View.INVISIBLE);
}
// Hooks
public interface OnNewAmountListener {
void onNewAmount(String xmr);
}
OnNewAmountListener onNewAmountListener;
public void setOnNewAmountListener(OnNewAmountListener listener) {
onNewAmountListener = listener;
}
public interface OnAmountInvalidatedListener {
void onAmountInvalidated();
}
OnAmountInvalidatedListener onAmountInvalidatedListener;
public void setOnAmountInvalidatedListener(OnAmountInvalidatedListener listener) {
onAmountInvalidatedListener = listener;
}
public interface OnFailedExchangeListener {
void onFailedExchange();
}
OnFailedExchangeListener onFailedExchangeListener;
public void setOnFailedExchangeListener(OnFailedExchangeListener listener) {
onFailedExchangeListener = listener;
}
}

196
app/src/main/java/com/m2049r/xmrwallet/widget/ExchangeOtherEditText.java Normal file
View File

@ -0,0 +1,196 @@
/*
* Copyright (c) 2017-2019 m2049r
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// based on https://code.tutsplus.com/tutorials/creating-compound-views-on-android--cms-22889
package com.m2049r.xmrwallet.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Handler;
import android.os.Looper;
import android.util.AttributeSet;
import android.widget.Spinner;
import com.m2049r.xmrwallet.R;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import com.m2049r.xmrwallet.util.Helper;
import java.util.ArrayList;
import java.util.List;
import timber.log.Timber;
public class ExchangeOtherEditText extends ExchangeEditText {
/*
all exchanges are done through XMR
baseCurrency is the native currency
*/
String baseCurrency = null; // not XMR
private double exchangeRate = 0; // baseCurrency to XMR
public void setExchangeRate(double rate) {
exchangeRate = rate;
post(new Runnable() {
@Override
public void run() {
startExchange();
}
});
}
private void setBaseCurrency(Context context, AttributeSet attrs) {
TypedArray ta = context.getTheme().obtainStyledAttributes(attrs, R.styleable.ExchangeEditText, 0, 0);
try {
baseCurrency = ta.getString(R.styleable.ExchangeEditText_baseSymbol);
if (baseCurrency == null)
throw new IllegalArgumentException("base currency must be set");
} finally {
ta.recycle();
}
}
public ExchangeOtherEditText(Context context, AttributeSet attrs) {
super(context, attrs);
setBaseCurrency(context, attrs);
}
public ExchangeOtherEditText(Context context,
AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
setBaseCurrency(context, attrs);
}
@Override
void setCurrencyAdapter(Spinner spinner) {
List<String> currencies = new ArrayList<>();
if (!baseCurrency.equals(Helper.BASE_CRYPTO)) currencies.add(baseCurrency);
currencies.add(Helper.BASE_CRYPTO);
setCurrencyAdapter(spinner, currencies);
}
@Override
void setInitialSpinnerSelections(Spinner baseSpinner, Spinner quoteSpinner) {
baseSpinner.setSelection(0, true);
quoteSpinner.setSelection(1, true);
}
private void localExchange(final String base, final String quote, final double rate) {
exchange(new ExchangeRate() {
@Override
public String getServiceName() {
return "Local";
}
@Override
public String getBaseCurrency() {
return base;
}
@Override
public String getQuoteCurrency() {
return quote;
}
@Override
public double getRate() {
return rate;
}
});
}
@Override
void execExchange(String currencyA, String currencyB) {
if (!currencyA.equals(baseCurrency) && !currencyB.equals(baseCurrency)) {
throw new IllegalStateException("I can only exchange " + baseCurrency);
}
showProgress();
Timber.d("execExchange(%s, %s)", currencyA, currencyB);
// first deal with XMR/baseCurrency & baseCurrency/XMR
if (currencyA.equals(Helper.BASE_CRYPTO) && (currencyB.equals(baseCurrency))) {
localExchange(currencyA, currencyB, exchangeRate);
return;
}
if (currencyA.equals(baseCurrency) && (currencyB.equals(Helper.BASE_CRYPTO))) {
localExchange(currencyA, currencyB, 1.0d / exchangeRate);
return;
}
// next, deal with XMR/baseCurrency
if (currencyA.equals(baseCurrency)) {
queryExchangeRate(Helper.BASE_CRYPTO, currencyB, exchangeRate, true);
} else {
queryExchangeRate(currencyA, Helper.BASE_CRYPTO, 1.0d / exchangeRate, false);
}
}
private void queryExchangeRate(final String base, final String quote, final double factor,
final boolean baseIsBaseCrypto) {
queryExchangeRate(base, quote,
new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
if (isAttachedToWindow())
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
ExchangeRate xchange = new ExchangeRate() {
@Override
public String getServiceName() {
return exchangeRate.getServiceName() + "+" + baseCurrency;
}
@Override
public String getBaseCurrency() {
return baseIsBaseCrypto ? baseCurrency : base;
}
@Override
public String getQuoteCurrency() {
return baseIsBaseCrypto ? quote : baseCurrency;
}
@Override
public double getRate() {
return exchangeRate.getRate() * factor;
}
};
exchange(xchange);
}
});
}
@Override
public void onError(final Exception e) {
Timber.e(e.getLocalizedMessage());
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
exchangeFailed();
}
});
}
});
}
}

1
app/src/main/res/layout/fragment_send_amount.xml
View File

@ -1,5 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"

8
app/src/main/res/layout/fragment_send_btc_amount.xml
View File

@ -1,5 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
@ -53,11 +54,12 @@
</LinearLayout>
</FrameLayout>
<com.m2049r.xmrwallet.widget.ExchangeBtcEditText
<com.m2049r.xmrwallet.widget.ExchangeOtherEditText
android:id="@+id/etAmount"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginTop="16dp"
android:orientation="vertical" />
android:layout_marginBottom="16dp"
android:orientation="vertical"
app:baseSymbol="BTC" />
</LinearLayout>

2
app/src/main/res/layout/view_exchange_edit.xml
View File

@ -14,7 +14,6 @@
android:layout_width="56dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:entries="@array/currency"
android:gravity="center"
android:textAlignment="center" />
@ -52,7 +51,6 @@
android:layout_width="56sp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:entries="@array/currency"
android:gravity="center"
android:textAlignment="center" />

37
app/src/main/res/values-ja/strings.xml
View File

@ -292,43 +292,6 @@
<string name="archive_alert_yes">はい、お願いします!</string>
<string name="archive_alert_no">いいえ、結構です!</string>
<string-array name="currency" translatable="false">
<item>XMR</item>
<item>EUR</item>
<item>USD</item>
<item>JPY</item>
<item>GBP</item>
<item>CHF</item>
<item>CAD</item>
<item>AUD</item>
<item>ZAR</item>
<item>BRL</item>
<item>CLP</item>
<item>CNY</item>
<item>CZK</item>
<item>DKK</item>
<item>HKD</item>
<item>HUF</item>
<item>IDR</item>
<item>ILS</item>
<item>INR</item>
<item>KRW</item>
<item>MXN</item>
<item>MYR</item>
<item>NOK</item>
<item>NZD</item>
<item>PHP</item>
<item>PKR</item>
<item>PLN</item>
<item>RUB</item>
<item>SEK</item>
<item>SGD</item>
<item>THB</item>
<item>TRY</item>
<item>TWD</item>
</string-array>
<string name="fab_create_new">新しいウォレットの作成</string>
<string name="fab_restore_viewonly">閲覧専用ウォレットを復元</string>
<string name="fab_restore_key">秘密鍵からウォレットを復元</string>

3
app/src/main/res/values/attrs.xml
View File

@ -7,4 +7,7 @@
<attr name="activeDot" format="integer" />
<attr name="numberDots" format="integer" />
</declare-styleable>
<declare-styleable name="ExchangeEditText">
<attr name="baseSymbol" format="string" />
</declare-styleable>
</resources>

12
app/src/main/res/values/strings.xml
View File

@ -297,40 +297,40 @@
<string name="archive_alert_no">No thanks!</string>
<string-array name="currency" translatable="false">
<item>XMR</item>
<item>EUR</item>
<item>USD</item>
<item>JPY</item>
<item>GBP</item>
<item>CHF</item>
<item>CAD</item>
<item>AUD</item>
<item>ZAR</item>
<item>AUD</item>
<item>BGN</item>
<item>BRL</item>
<item>CLP</item>
<item>CNY</item>
<item>CZK</item>
<item>DKK</item>
<item>HKD</item>
<item>HRK</item>
<item>HUF</item>
<item>IDR</item>
<item>ILS</item>
<item>INR</item>
<item>ISK</item>
<item>KRW</item>
<item>MXN</item>
<item>MYR</item>
<item>NOK</item>
<item>NZD</item>
<item>PHP</item>
<item>PKR</item>
<item>PLN</item>
<item>RON</item>
<item>RUB</item>
<item>SEK</item>
<item>SGD</item>
<item>THB</item>
<item>TRY</item>
<item>TWD</item>
<item>ZAR</item>
</string-array>
<string name="fab_create_new">Create new wallet</string>

301
app/src/test/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeRateTest.java Normal file
View File

@ -0,0 +1,301 @@
/*
* Copyright (c) 2017 m2049r et al.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.m2049r.xmrwallet.service.exchange.ecb;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeException;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
import net.jodah.concurrentunit.Waiter;
import org.json.JSONException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import java.util.concurrent.TimeoutException;
import okhttp3.OkHttpClient;
import okhttp3.mockwebserver.MockResponse;
import okhttp3.mockwebserver.MockWebServer;
import okhttp3.mockwebserver.RecordedRequest;
import static org.junit.Assert.assertEquals;
public class ExchangeRateTest {
private MockWebServer mockWebServer;
private ExchangeApi exchangeApi;
private final OkHttpClient okHttpClient = new OkHttpClient();
private Waiter waiter;
@Mock
ExchangeCallback mockExchangeCallback;
@Before
public void setUp() throws Exception {
mockWebServer = new MockWebServer();
mockWebServer.start();
waiter = new Waiter();
MockitoAnnotations.initMocks(this);
exchangeApi = new ExchangeApiImpl(okHttpClient, mockWebServer.url("/"));
}
@After
public void tearDown() throws Exception {
mockWebServer.shutdown();
}
@Test
public void queryExchangeRate_shouldBeGetMethod()
throws InterruptedException, TimeoutException {
exchangeApi.queryExchangeRate("EUR", "USD", mockExchangeCallback);
RecordedRequest request = mockWebServer.takeRequest();
assertEquals("GET", request.getMethod());
}
@Test
public void queryExchangeRate_shouldBeEUR()
throws InterruptedException, TimeoutException {
exchangeApi.queryExchangeRate("CHF", "USD", new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.fail();
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.assertTrue(e instanceof IllegalArgumentException);
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_shouldBeOneForEur()
throws InterruptedException, TimeoutException {
exchangeApi.queryExchangeRate("EUR", "EUR", new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.assertEquals(1.0, exchangeRate.getRate());
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.fail();
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_wasSuccessfulShouldRespondWithUsdRate()
throws InterruptedException, JSONException, TimeoutException {
final String base = "EUR";
final String quote = "USD";
final double rate = 1.1043;
MockResponse jsonMockResponse = new MockResponse().setBody(createMockExchangeRateResponse());
mockWebServer.enqueue(jsonMockResponse);
exchangeApi.queryExchangeRate(base, quote, new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.assertEquals(base, exchangeRate.getBaseCurrency());
waiter.assertEquals(quote, exchangeRate.getQuoteCurrency());
waiter.assertEquals(rate, exchangeRate.getRate());
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.fail(e);
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_wasSuccessfulShouldRespondWithAudRate()
throws InterruptedException, JSONException, TimeoutException {
final String base = "EUR";
final String quote = "AUD";
final double rate = 1.6246;
MockResponse jsonMockResponse = new MockResponse().setBody(createMockExchangeRateResponse());
mockWebServer.enqueue(jsonMockResponse);
exchangeApi.queryExchangeRate(base, quote, new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.assertEquals(base, exchangeRate.getBaseCurrency());
waiter.assertEquals(quote, exchangeRate.getQuoteCurrency());
waiter.assertEquals(rate, exchangeRate.getRate());
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.fail(e);
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_wasSuccessfulShouldRespondWithZarRate()
throws InterruptedException, JSONException, TimeoutException {
final String base = "EUR";
final String quote = "ZAR";
final double rate = 16.3978;
MockResponse jsonMockResponse = new MockResponse().setBody(createMockExchangeRateResponse());
mockWebServer.enqueue(jsonMockResponse);
exchangeApi.queryExchangeRate(base, quote, new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.assertEquals(base, exchangeRate.getBaseCurrency());
waiter.assertEquals(quote, exchangeRate.getQuoteCurrency());
waiter.assertEquals(rate, exchangeRate.getRate());
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.fail(e);
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_wasNotSuccessfulShouldCallOnError()
throws InterruptedException, JSONException, TimeoutException {
mockWebServer.enqueue(new MockResponse().setResponseCode(500));
exchangeApi.queryExchangeRate("EUR", "USD", new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.fail();
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.assertTrue(e instanceof ExchangeException);
waiter.assertTrue(((ExchangeException) e).getCode() == 500);
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_unknownAssetShouldCallOnError()
throws InterruptedException, JSONException, TimeoutException {
MockResponse jsonMockResponse = new MockResponse().setBody(createMockExchangeRateResponse());
mockWebServer.enqueue(jsonMockResponse);
exchangeApi.queryExchangeRate("EUR", "ABC", new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.fail();
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.assertTrue(e instanceof ExchangeException);
ExchangeException ex = (ExchangeException) e;
waiter.assertTrue(ex.getCode() == 404);
waiter.assertEquals(ex.getErrorMsg(), "Currency not supported: ABC");
waiter.resume();
}
});
waiter.await();
}
static public String createMockExchangeRateResponse() {
return "<gesmes:Envelope xmlns:gesmes=\"http://www.gesmes.org/xml/2002-08-01\" xmlns=\"http://www.ecb.int/vocabulary/2002-08-01/eurofxref\"><script xmlns=\"\"/>\n" +
"\t<gesmes:subject>Reference rates</gesmes:subject>\n" +
"\t<gesmes:Sender>\n" +
"\t\t<gesmes:name>European Central Bank</gesmes:name>\n" +
"\t</gesmes:Sender>\n" +
"\t<Cube>\n" +
"\t\t<Cube time=\"2019-10-11\">\n" +
"\t\t\t<Cube currency=\"USD\" rate=\"1.1043\"/>\n" +
"\t\t\t<Cube currency=\"JPY\" rate=\"119.75\"/>\n" +
"\t\t\t<Cube currency=\"BGN\" rate=\"1.9558\"/>\n" +
"\t\t\t<Cube currency=\"CZK\" rate=\"25.807\"/>\n" +
"\t\t\t<Cube currency=\"DKK\" rate=\"7.4688\"/>\n" +
"\t\t\t<Cube currency=\"GBP\" rate=\"0.87518\"/>\n" +
"\t\t\t<Cube currency=\"HUF\" rate=\"331.71\"/>\n" +
"\t\t\t<Cube currency=\"PLN\" rate=\"4.3057\"/>\n" +
"\t\t\t<Cube currency=\"RON\" rate=\"4.7573\"/>\n" +
"\t\t\t<Cube currency=\"SEK\" rate=\"10.8448\"/>\n" +
"\t\t\t<Cube currency=\"CHF\" rate=\"1.1025\"/>\n" +
"\t\t\t<Cube currency=\"ISK\" rate=\"137.70\"/>\n" +
"\t\t\t<Cube currency=\"NOK\" rate=\"10.0375\"/>\n" +
"\t\t\t<Cube currency=\"HRK\" rate=\"7.4280\"/>\n" +
"\t\t\t<Cube currency=\"RUB\" rate=\"70.8034\"/>\n" +
"\t\t\t<Cube currency=\"TRY\" rate=\"6.4713\"/>\n" +
"\t\t\t<Cube currency=\"AUD\" rate=\"1.6246\"/>\n" +
"\t\t\t<Cube currency=\"BRL\" rate=\"4.5291\"/>\n" +
"\t\t\t<Cube currency=\"CAD\" rate=\"1.4679\"/>\n" +
"\t\t\t<Cube currency=\"CNY\" rate=\"7.8417\"/>\n" +
"\t\t\t<Cube currency=\"HKD\" rate=\"8.6614\"/>\n" +
"\t\t\t<Cube currency=\"IDR\" rate=\"15601.55\"/>\n" +
"\t\t\t<Cube currency=\"ILS\" rate=\"3.8673\"/>\n" +
"\t\t\t<Cube currency=\"INR\" rate=\"78.4875\"/>\n" +
"\t\t\t<Cube currency=\"KRW\" rate=\"1308.61\"/>\n" +
"\t\t\t<Cube currency=\"MXN\" rate=\"21.3965\"/>\n" +
"\t\t\t<Cube currency=\"MYR\" rate=\"4.6220\"/>\n" +
"\t\t\t<Cube currency=\"NZD\" rate=\"1.7419\"/>\n" +
"\t\t\t<Cube currency=\"PHP\" rate=\"56.927\"/>\n" +
"\t\t\t<Cube currency=\"SGD\" rate=\"1.5177\"/>\n" +
"\t\t\t<Cube currency=\"THB\" rate=\"33.642\"/>\n" +
"\t\t\t<Cube currency=\"ZAR\" rate=\"16.3978\"/>\n" +
"\t\t</Cube>\n" +
"\t</Cube>\n" +
"</gesmes:Envelope>";
}
}

116
app/src/test/java/com/m2049r/xmrwallet/service/exchange/coinmarketcap/ExchangeRateTest.java → app/src/test/java/com/m2049r/xmrwallet/service/exchange/kraken/ExchangeRateTest.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2018 m2049r et al.
* Copyright (c) 2017 m2049r et al.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -14,7 +14,7 @@
* limitations under the License.
*/
package com.m2049r.xmrwallet.service.exchange.coinmarketcap;
package com.m2049r.xmrwallet.service.exchange.kraken;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
@ -71,9 +71,9 @@ public class ExchangeRateTest {
@Test
public void queryExchangeRate_shouldBeGetMethod()
throws InterruptedException {
throws InterruptedException, TimeoutException {
exchangeApi.queryExchangeRate("XMR", "EUR", mockExchangeCallback);
exchangeApi.queryExchangeRate("XMR", "USD", mockExchangeCallback);
RecordedRequest request = mockWebServer.takeRequest();
assertEquals("GET", request.getMethod());
@ -81,48 +81,20 @@ public class ExchangeRateTest {
@Test
public void queryExchangeRate_shouldHavePairInUrl()
throws InterruptedException {
throws InterruptedException, TimeoutException {
exchangeApi.queryExchangeRate("XMR", "EUR", mockExchangeCallback);
exchangeApi.queryExchangeRate("XMR", "USD", mockExchangeCallback);
RecordedRequest request = mockWebServer.takeRequest();
assertEquals("/328/?convert=EUR", request.getPath());
assertEquals("/?pair=XMRUSD", request.getPath());
}
@Test
public void queryExchangeRate_wasSuccessfulShouldRespondWithRate()
throws TimeoutException {
final String base = "XMR";
final String quote = "EUR";
final double rate = 1.56;
MockResponse jsonMockResponse = new MockResponse().setBody(
createMockExchangeRateResponse(base, quote, rate));
mockWebServer.enqueue(jsonMockResponse);
exchangeApi.queryExchangeRate(base, quote, new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
waiter.assertEquals(exchangeRate.getBaseCurrency(), base);
waiter.assertEquals(exchangeRate.getQuoteCurrency(), quote);
waiter.assertEquals(exchangeRate.getRate(), rate);
waiter.resume();
}
@Override
public void onError(final Exception e) {
waiter.fail(e);
waiter.resume();
}
});
waiter.await();
}
@Test
public void queryExchangeRate_wasSuccessfulShouldRespondWithRateUSD()
throws TimeoutException {
throws InterruptedException, JSONException, TimeoutException {
final String base = "XMR";
final String quote = "USD";
final double rate = 1.56;
final double rate = 100;
MockResponse jsonMockResponse = new MockResponse().setBody(
createMockExchangeRateResponse(base, quote, rate));
mockWebServer.enqueue(jsonMockResponse);
@ -147,9 +119,8 @@ public class ExchangeRateTest {
@Test
public void queryExchangeRate_wasNotSuccessfulShouldCallOnError()
throws TimeoutException {
throws InterruptedException, JSONException, TimeoutException {
mockWebServer.enqueue(new MockResponse().setResponseCode(500));
exchangeApi.queryExchangeRate("XMR", "USD", new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
@ -170,11 +141,10 @@ public class ExchangeRateTest {
@Test
public void queryExchangeRate_unknownAssetShouldCallOnError()
throws TimeoutException {
MockResponse jsonMockResponse = new MockResponse().setBody(
createMockExchangeRateErrorResponse());
mockWebServer.enqueue(jsonMockResponse);
throws InterruptedException, JSONException, TimeoutException {
mockWebServer.enqueue(new MockResponse().
setResponseCode(200).
setBody("{\"error\":[\"EQuery:Unknown asset pair\"]}"));
exchangeApi.queryExchangeRate("XMR", "ABC", new ExchangeCallback() {
@Override
public void onSuccess(final ExchangeRate exchangeRate) {
@ -187,7 +157,7 @@ public class ExchangeRateTest {
waiter.assertTrue(e instanceof ExchangeException);
ExchangeException ex = (ExchangeException) e;
waiter.assertTrue(ex.getCode() == 200);
waiter.assertEquals(ex.getErrorMsg(), "id not found");
waiter.assertEquals(ex.getErrorMsg(), "EQuery:Unknown asset pair");
waiter.resume();
}
@ -195,51 +165,21 @@ public class ExchangeRateTest {
waiter.await();
}
private String createMockExchangeRateResponse(final String base, final String quote, final double rate) {
static public String createMockExchangeRateResponse(final String base, final String quote, final double rate) {
return "{\n" +
" \"data\": {\n" +
" \"id\": 328, \n" +
" \"name\": \"Monero\", \n" +
" \"symbol\": \"" + base + "\", \n" +
" \"website_slug\": \"monero\", \n" +
" \"rank\": 12, \n" +
" \"circulating_supply\": 16112286.0, \n" +
" \"total_supply\": 16112286.0, \n" +
" \"max_supply\": null, \n" +
" \"quotes\": {\n" +
" \"USD\": {\n" +
" \"price\": " + rate + ", \n" +
" \"volume_24h\": 35763700.0, \n" +
" \"market_cap\": 2559791130.0, \n" +
" \"percent_change_1h\": -0.16, \n" +
" \"percent_change_24h\": -3.46, \n" +
" \"percent_change_7d\": 1.49\n" +
" }, \n" +
(!"USD".equals(quote) ? (
" \"" + quote + "\": {\n" +
" \"price\": " + rate + ", \n" +
" \"volume_24h\": 30377728.701265607, \n" +
" \"market_cap\": 2174289586.0, \n" +
" \"percent_change_1h\": -0.16, \n" +
" \"percent_change_24h\": -3.46, \n" +
" \"percent_change_7d\": 1.49\n" +
" }\n") : "") +
" }, \n" +
" \"last_updated\": 1528492746\n" +
" }, \n" +
" \"metadata\": {\n" +
" \"timestamp\": 1528492705, \n" +
" \"error\": null\n" +
" \"error\":[],\n" +
" \"result\":{\n" +
" \"X" + base + "Z" + quote + "\":{\n" +
" \"a\":[\"" + rate + "\",\"322\",\"322.000\"],\n" +
" \"b\":[\"" + rate + "\",\"76\",\"76.000\"],\n" +
" \"c\":[\"" + rate + "\",\"2.90000000\"],\n" +
" \"v\":[\"4559.03962053\",\"5231.33235586\"],\n" +
" \"p\":[\"" + rate + "\",\"" + rate + "\"],\n" +
" \"t\":[801,1014],\n" +
" \"l\":[\"" + (rate * 0.8) + "\",\"" + rate + "\"],\n" +
" \"h\":[\"" + (rate * 1.2) + "\",\"" + rate + "\"],\n" +
" \"o\":\"" + rate + "\"\n" +
" }\n" +
"}";
}
private String createMockExchangeRateErrorResponse() {
return "{\n" +
" \"data\": null, \n" +
" \"metadata\": {\n" +
" \"timestamp\": 1525137187, \n" +
" \"error\": \"id not found\"\n" +
" }\n" +
"}";
}