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Merge pull request #7 from LtbLightning/Updates-v13
Updates for v13
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,2 +1,46 @@ | ||
| # payjoin | ||
| # Payjoin Flutter | ||
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| A Flutter library for the [Payjoin Dev Kit](https://payjoindevkit.org/). | ||
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| ### How to Use | ||
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| To use the `payjoin_flutter` package in your project, add it as a dependency in your project's pubspec.yaml: | ||
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| ```dart | ||
| dependencies: | ||
| payjoin_flutter: 0.13.0 | ||
| ``` | ||
| ### Requirements | ||
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| - Flutter : 3.0 or higher | ||
| - Android minSdkVersion. : API 23 or higher. | ||
| - Deployment target : iOS 12.0 or greater. | ||
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| ### Build and run code | ||
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| Before building the code, we need to set up the Bitcoin core properly in the regtest network. If you "don't" | ||
| have Bitcoin Core locally, please refer to this [page](https://learn.saylor.org/mod/page/view.php?id=36347). Or you can | ||
| install `Nigiri Bitcoin`, which is a tool designed to simplify the process of running local instances of Bitcoin and | ||
| Liquid networks for development and testing purposes. You can refer to | ||
| this [link](https://github.com/vulpemventures/nigiri), to install it on your local machine. | ||
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| NB: The default credentials would be the following | ||
| ``` | ||
| rpc_user = "admin1" | ||
| rpc_password = "123" | ||
| rpc_host = "localhost" | ||
| rpc_port = "18443" | ||
| ``` | ||
| ## Running the integration tests | ||
| Once we have set up the Bitcoin core properly in the `Regtest` network, | ||
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| ```shell | ||
| git clone https://github.com/LtbLightning/payjoin-flutter.git | ||
| cd payjoin-flutter | ||
| git checkout v0.13 | ||
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| cd example | ||
| #Run integration tests with bitcoin_core and bdk_flutter | ||
| flutter test integration_test | ||
| ``` | ||
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@@ -44,7 +44,7 @@ android { | |
| } | ||
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| defaultConfig { | ||
| minSdkVersion 19 | ||
| minSdkVersion 23 | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,99 @@ | ||
| import 'dart:convert'; | ||
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| import 'package:bdk_flutter/bdk_flutter.dart'; | ||
| import 'package:flutter/cupertino.dart'; | ||
| import 'package:flutter_test/flutter_test.dart'; | ||
| import 'package:integration_test/integration_test.dart'; | ||
| import 'package:payjoin_flutter/common.dart' as common; | ||
| import 'package:payjoin_flutter/uri.dart' as pay_join_uri; | ||
| import 'package:payjoin_flutter_example/bdk_client.dart'; | ||
| import 'package:payjoin_flutter_example/btc_client.dart'; | ||
| import 'package:payjoin_flutter_example/payjoin_library.dart'; | ||
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| void main() { | ||
| IntegrationTestWidgetsFlutterBinding.ensureInitialized(); | ||
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| group('v1_to_v1', () { | ||
| setUp(() async {}); | ||
| testWidgets('full_cycle', (WidgetTester tester) async { | ||
| final payJoinLib = PayJoinLibrary(); | ||
| final btcClient = BtcClient("sender"); | ||
| await btcClient.loadWallet(); | ||
| final sender = BdkClient( | ||
| "puppy interest whip tonight dad never sudden response push zone pig patch"); | ||
| final receiver = BdkClient( | ||
| "cart super leaf clinic pistol plug replace close super tooth wealth usage"); | ||
| await sender.restoreWallet(); | ||
| await receiver.restoreWallet(); | ||
| // Receiver creates the payjoin URI | ||
| final pjReceiverAddress = (await receiver.getNewAddress()).address; | ||
| final pjSenderAddress = (await sender.getNewAddress()).address; | ||
| await btcClient.sendToAddress(await pjSenderAddress.asString(), 10); | ||
| await btcClient.sendToAddress(await pjReceiverAddress.asString(), 2); | ||
| await btcClient.generate(11, await pjSenderAddress.asString()); | ||
| await receiver.syncWallet(); | ||
| await sender.syncWallet(); | ||
| final pjUri = await payJoinLib.buildPjUri( | ||
| 0.0083285, await pjReceiverAddress.asString()); | ||
| // Sender create a funded PSBT (not broadcast) to address with amount given in the pjUri | ||
| debugPrint("Sender Balance: ${(await sender.getBalance()).toString()}"); | ||
| final uri = await pay_join_uri.Uri.fromString(pjUri); | ||
| final address = await uri.address(); | ||
| int amount = (((await uri.amount()) ?? 0) * 100000000).toInt(); | ||
| final senderPsbt = (await sender.createPsbt(address, amount, 2000)); | ||
| final senderPsbtBase64 = await senderPsbt.serialize(); | ||
| debugPrint( | ||
| "\nOriginal sender psbt: $senderPsbtBase64", | ||
| ); | ||
| // Receiver part | ||
| final (provisionalProposal, ctx) = | ||
| await payJoinLib.handlePjRequest(senderPsbtBase64, pjUri, (e) async { | ||
| final script = ScriptBuf(bytes: e); | ||
| return (await receiver.getAddressInfo(script)); | ||
| }); | ||
| final availableInputs = await receiver.listUnspent(); | ||
| // Select receiver payjoin inputs. | ||
| Map<int, common.OutPoint> candidateInputs = { | ||
| for (var input in availableInputs) | ||
| input.txout.value: common.OutPoint( | ||
| txid: input.outpoint.txid.toString(), vout: input.outpoint.vout) | ||
| }; | ||
| final selectedOutpoint = await provisionalProposal.tryPreservingPrivacy( | ||
| candidateInputs: candidateInputs); | ||
| var selectedUtxo = availableInputs.firstWhere( | ||
| (i) => | ||
| i.outpoint.txid.toString() == selectedOutpoint.txid && | ||
| i.outpoint.vout == selectedOutpoint.vout, | ||
| orElse: () => throw Exception('UTXO not found')); | ||
| var txoToContribute = common.TxOut( | ||
| value: selectedUtxo.txout.value, | ||
| scriptPubkey: selectedUtxo.txout.scriptPubkey.bytes, | ||
| ); | ||
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| var outpointToContribute = common.OutPoint( | ||
| txid: selectedUtxo.outpoint.txid.toString(), | ||
| vout: selectedUtxo.outpoint.vout, | ||
| ); | ||
| await provisionalProposal.contributeWitnessInput( | ||
| txo: txoToContribute, outpoint: outpointToContribute); | ||
| final receiverAddress = (await receiver.getNewAddress()).address; | ||
| await provisionalProposal.substituteOutputAddress( | ||
| address: await receiverAddress.asString()); | ||
| final payJoinProposal = | ||
| await provisionalProposal.finalizeProposal(processPsbt: (e) async { | ||
| return await (await receiver | ||
| .signPsbt(await PartiallySignedTransaction.fromString(e))) | ||
| .serialize(); | ||
| }); | ||
| final receiverPsbt = await payJoinProposal.psbt(); | ||
| debugPrint("\n Original receiver psbt: $receiverPsbt"); | ||
| final receiverProcessedPsbt = | ||
| await ctx.processResponse(response: utf8.encode(receiverPsbt)); | ||
| final senderProcessedPsbt = (await sender.signPsbt( | ||
| await PartiallySignedTransaction.fromString(receiverProcessedPsbt))); | ||
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| final txid = await sender.broadcastPsbt(senderProcessedPsbt); | ||
| debugPrint("Broadcast success: $txid"); | ||
| }); | ||
| }); | ||
| } |
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example/integration_test/bitcoin_core_full_cycle_test.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| import 'dart:convert'; | ||
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| import 'package:bdk_flutter/bdk_flutter.dart'; | ||
| import 'package:flutter/cupertino.dart'; | ||
| import 'package:flutter_test/flutter_test.dart'; | ||
| import 'package:integration_test/integration_test.dart'; | ||
| import 'package:payjoin_flutter/common.dart' as common; | ||
| import 'package:payjoin_flutter/uri.dart' as pay_join_uri; | ||
| import 'package:payjoin_flutter_example/btc_client.dart'; | ||
| import 'package:payjoin_flutter_example/payjoin_library.dart'; | ||
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| void main() { | ||
| IntegrationTestWidgetsFlutterBinding.ensureInitialized(); | ||
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| group('v1_to_v1', () { | ||
| setUp(() async {}); | ||
| testWidgets('full_cycle', (WidgetTester tester) async { | ||
| final payJoinLib = PayJoinLibrary(); | ||
| final sender = BtcClient("receiver"); | ||
| final client = BtcClient(""); | ||
| final receiver = BtcClient("sender"); | ||
| // Receiver creates the payjoin URI | ||
| final pjReceiverAddress = await receiver.getNewAddress(); | ||
| final pjSenderAddress = await sender.getNewAddress(); | ||
| //Generate blocks to receiver and sender | ||
| await client.sendToAddress(pjSenderAddress, 10); | ||
| await client.sendToAddress(pjReceiverAddress, 1); | ||
| await sender.generate(11, pjSenderAddress); | ||
| await receiver.generate(1, pjReceiverAddress); | ||
| final pjUri = await payJoinLib.buildPjUri(0.0083285, pjReceiverAddress); | ||
| // Sender create a funded PSBT (not broadcast) to address with amount given in the pjUri | ||
| debugPrint("Sender Balance: ${(await sender.getBalance()).toString()}"); | ||
| final uri = await pay_join_uri.Uri.fromString(pjUri); | ||
| final address = await uri.address(); | ||
| final amount = await uri.amount(); | ||
| final senderPsbt = | ||
| (await sender.walletCreateFundedPsbt(amount, address, 2000))["psbt"]; | ||
| debugPrint( | ||
| "\nOriginal sender psbt: $senderPsbt", | ||
| ); | ||
| final (provisionalProposal, ctx) = | ||
| await payJoinLib.handlePjRequest(senderPsbt, pjUri, (e) async { | ||
| final script = ScriptBuf(bytes: e); | ||
| final address = await (await Address.fromScript( | ||
| script: script, network: Network.regtest)) | ||
| .asString(); | ||
| return (await receiver.getAddressInfo(address))["ismine"]; | ||
| }); | ||
| final availableInputs = await receiver.listUnspent([]); | ||
| // Select receiver payjoin inputs. | ||
| Map<int, common.OutPoint> candidateInputs = {}; | ||
| for (var e in availableInputs) { | ||
| int amount = (e["amount"] * 100000000).toInt(); | ||
| candidateInputs[amount] = | ||
| common.OutPoint(txid: e["txid"], vout: e["vout"]); | ||
| } | ||
| final selectedOutpoint = await provisionalProposal.tryPreservingPrivacy( | ||
| candidateInputs: candidateInputs); | ||
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| final selectedUtxo = availableInputs.firstWhere((e) => | ||
| (e["txid"] == selectedOutpoint.txid) && | ||
| (e["vout"] == selectedOutpoint.vout)); | ||
| final selectedUtxoScriptPubKey = | ||
| await ScriptBuf.fromHex(selectedUtxo["scriptPubKey"]); | ||
| int selectedUtxoAmount = (selectedUtxo["amount"] * 100000000).toInt(); | ||
| final txoutToContribute = common.TxOut( | ||
| scriptPubkey: selectedUtxoScriptPubKey.bytes, | ||
| value: selectedUtxoAmount, | ||
| ); | ||
| final outputToContribute = common.OutPoint( | ||
| txid: selectedUtxo["txid"], vout: selectedUtxo["vout"]); | ||
| await provisionalProposal.contributeWitnessInput( | ||
| txo: txoutToContribute, outpoint: outputToContribute); | ||
| final newReceiverAddress = await receiver.getNewAddress(); | ||
| await provisionalProposal.substituteOutputAddress( | ||
| address: newReceiverAddress); | ||
| final payJoinProposal = | ||
| await provisionalProposal.finalizeProposal(processPsbt: (e) async { | ||
| return (await receiver.walletProcessPsbt(e))["psbt"]; | ||
| }); | ||
| final receiverPsbt = await payJoinProposal.psbt(); | ||
| debugPrint("\n Original receiver psbt: $receiverPsbt"); | ||
| final receiverProcessedPsbt = | ||
| await ctx.processResponse(response: utf8.encode(receiverPsbt)); | ||
| final senderProcessedPsbt = | ||
| (await sender.walletProcessPsbt(receiverProcessedPsbt))["psbt"]; | ||
| final senderFinalizedPsbt = | ||
| (await sender.finalizePsbt(senderProcessedPsbt)); | ||
| final res = await sender.sendRawTransaction(senderFinalizedPsbt["hex"]); | ||
| debugPrint("Broadcast success: $res"); | ||
| }); | ||
| }); | ||
| } |
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