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PSBT channel funding support #20

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merged 4 commits into from
May 4, 2021
Merged

PSBT channel funding support #20

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62403a1
Example app link fix
Jasonvdb Apr 29, 2021
593f37f
PSBT channel funding with example
Jasonvdb Apr 30, 2021
61df243
Example app cleanup
Jasonvdb May 3, 2021
bd4ccd4
Improved docs
Jasonvdb May 3, 2021
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253 changes: 15 additions & 238 deletions example/App.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,6 @@

import React, {useEffect, useState} from 'react';
import {
Alert,
Button,
SafeAreaView,
ScrollView,
Expand All @@ -22,9 +21,12 @@ import Clipboard from '@react-native-clipboard/clipboard';
import lnd, {
ENetworks,
LndConf,
lnrpc,
TCurrentLndState,
} from 'react-native-lightning';
} from '@synonymdev/react-native-lightning';

import {emoji} from './src/helpers';
import PSBT from './src/PSBT';
import Options from './src/Options';

declare const global: {HermesInternal: null | {}};

Expand All @@ -33,6 +35,8 @@ const testNodePubkey =
'034ecfd567a64f06742ac300a2985676abc0b1dc6345904a08bb52d5418e685f79';
const testNodeAddress = '35.240.72.95:9735';

const network = ENetworks.testnet;

const App = () => {
const [message, setMessage] = useState('');
const [lndState, setLndState] = useState<TCurrentLndState>({
Expand All @@ -44,11 +48,9 @@ const App = () => {
const [walletExists, setWalletExists] = useState(false);
const [seed, setSeed] = useState<string[]>([]);

const emoji = (s: boolean) => (s ? '✅' : '❌');

useEffect(() => {
(async () => {
const walletExistsRes = await lnd.walletExists(ENetworks.testnet);
const walletExistsRes = await lnd.walletExists(network);
if (walletExistsRes.isOk()) {
setWalletExists(walletExistsRes.value);
}
Expand Down Expand Up @@ -80,8 +82,8 @@ const App = () => {
return console.error(res.error);
}

const backupBytes = res.value.multiChanBackup.multiChanBackup;
console.log(`Backup required (${backupBytes.length} bytes)`);
const backupBytes = res.value.multiChanBackup?.multiChanBackup;
console.log(`Backup required (${backupBytes?.length} bytes)`);
},
() => {},
);
Expand Down Expand Up @@ -133,7 +135,7 @@ const App = () => {
setMessage('Starting LND...');

const customFields = {};
const lndConf = new LndConf(ENetworks.testnet, customFields);
const lndConf = new LndConf(network, customFields);
const res = await lnd.start(lndConf);

if (res.isErr()) {
Expand Down Expand Up @@ -201,236 +203,11 @@ const App = () => {

{lndState.grpcReady ? (
<>
<Button
title={'Get info'}
onPress={async () => {
const res = await lnd.getInfo();

if (res.isErr()) {
console.error(res.error);
return;
}

const {
identityPubkey,
syncedToChain,
blockHeight,
numPeers,
numActiveChannels,
version,
alias,
} = res.value;
let info = `Pubkey: ${identityPubkey}\n\n`;
info += `Alias: ${alias}\n\n`;
info += `Synced: ${emoji(syncedToChain)}\n\n`;
info += `BlockHeight: ${blockHeight}\n\n`;
info += `NumPeers: ${numPeers}\n\n`;
info += `NumActiveChannels: ${numActiveChannels}\n\n`;
info += `Version: ${version}`;

setMessage(info);
}}
/>
<Button
title={'Get on chain balance'}
onPress={async () => {
const res = await lnd.getWalletBalance();

if (res.isErr()) {
console.error(res.error);
return;
}

setMessage(
`Total balance: ${res.value.totalBalance}\nConfirmed balance: ${res.value.confirmedBalance}\nUnconfirmed balance: ${res.value.unconfirmedBalance}\n`,
);
}}
/>
<Button
title={'Get channel balance'}
onPress={async () => {
const res = await lnd.getChannelBalance();

if (res.isErr()) {
console.error(res.error);
return;
}

setMessage(
`Pending open balance: ${res.value.pendingOpenBalance}\nLocal balance: ${res.value.localBalance?.sat}\nRemote balance: ${res.value?.remoteBalance.sat}\n`,
);
}}
/>
<Button
title={'Copy address to clipboard'}
onPress={async () => {
const res = await lnd.getAddress();

if (res.isErr()) {
console.error(res.error);
return;
}

Clipboard.setString(res.value.address);
setMessage(`Copied: ${res.value.address}`);
}}
/>
<Button
title={'Open channel'}
onPress={async () => {
setMessage('Connecting to peer...');

const connectRes = await lnd.connectPeer(
testNodePubkey,
testNodeAddress,
);

if (
connectRes.isErr() &&
connectRes.error.message.indexOf(
'already connected to peer',
) < 0
) {
console.error(connectRes.error);
return;
}

setMessage('Opening channel...');

const balanceRes = await lnd.getWalletBalance();
if (balanceRes.isErr()) {
setMessage(balanceRes.error.message);
return;
}

let value = Number(balanceRes.value.confirmedBalance);
const maxChannel = 0.16 * 100000000;
if (value > maxChannel) {
value = maxChannel;
}

value -= 50000;

setMessage('Opening channel...');

const openRes = await lnd.openChannel(value, testNodePubkey);
if (openRes.isErr()) {
setMessage(openRes.error.message);
return;
}
}}
/>

<Button
title={'List channels'}
onPress={async () => {
const res = await lnd.listChannels();

if (res.isErr()) {
console.error(res.error);
return;
}

let list = '';
res.value.channels.forEach((channel: lnrpc.IChannel) => {
list += `Remote pubkey: ${channel.remotePubkey}\n`;
list += `Capacity: ${channel.capacity}\n`;
list += `Local balance: ${channel.localBalance}\n`;
list += `Remote balance: ${channel.remoteBalance}\n`;
list += `Active: ${emoji(channel.active || false)}\n`;

list += '\n\n';
});

setMessage(list || 'No channels');
}}
/>

<Button
title={'Paste invoice from clipboard'}
onPress={async () => {
const invoice = await Clipboard.getString();
if (!invoice) {
setMessage('Clipboard empty');
}

const decodeRes = await lnd.decodeInvoice(invoice);

if (decodeRes.isErr()) {
setMessage(decodeRes.error.message);
return;
}

const {numSatoshis, description} = decodeRes.value;

Alert.alert(
`Pay ${numSatoshis} sats?`,
description,
[
{
text: 'Cancel',
onPress: (): void => {},
style: 'cancel',
},
{
text: 'Pay',
onPress: async (): Promise<void> => {
setMessage('Paying...');
const payRes = await lnd.payInvoice(invoice);
if (payRes.isErr()) {
setMessage(payRes.error.message);
return;
}

setMessage(payRes.value.paymentError || 'Paid');
},
},
],
{cancelable: true},
);
}}
/>

<Button
title={'Create invoice and copy to clipboard'}
onPress={async () => {
const res = await lnd.createInvoice(
5000,
`Test invoice ${new Date().getTime()}`,
);

if (res.isErr()) {
console.error(res.error);
return;
}

Clipboard.setString(res.value.paymentRequest);
setMessage(res.value.paymentRequest);
}}
/>

<Button
title={'Export backup and verify it'}
onPress={async () => {
const res = await lnd.exportAllChannelBackups();

if (res.isErr()) {
console.error(res.error);
return;
}

const verifyRes = await lnd.verifyMultiChannelBackup(
res.value.multiChanBackup.multiChanBackup,
);

if (verifyRes.isErr()) {
setMessage(verifyRes.error.message);
return;
}

setMessage(`Backup verification: ${emoji(verifyRes.value)}`);
}}
<Options
nodePubKey={testNodePubkey}
nodeAddress={testNodeAddress}
/>
<PSBT nodePubKey={testNodePubkey} />
</>
) : null}
</ScrollView>
Expand Down
2 changes: 1 addition & 1 deletion example/android/app/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -208,7 +208,7 @@ dependencies {
implementation jscFlavor
}

implementation files("../../node_modules/react-native-lightning/android/libs/Lndmobile.aar")
implementation files("../../node_modules/@synonymdev/react-native-lightning/android/libs/Lndmobile.aar")

}

Expand Down
8 changes: 4 additions & 4 deletions example/ios/Podfile
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Original file line number Diff line number Diff line change
Expand Up @@ -17,10 +17,10 @@ target 'example' do
#
# Note that if you have use_frameworks! enabled, Flipper will not work and
# you should disable these next few lines.
use_flipper!
post_install do |installer|
flipper_post_install(installer)
end
# use_flipper!
# post_install do |installer|
# flipper_post_install(installer)
# end
end

target 'example-tvOS' do
Expand Down
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