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@planethouki

nem catapult aggregate tx その２ エスクロー

Last updated at Posted at 2018-05-29

公式ドキュメント

Running Catapult in local

Writing your first application

Creating an escrow with aggregate bonded transaction

Signing announced aggregate bonded transaction

前提

概要

AliceのXEMとTicketDistributorのBARモザイク交換を、1トランザクションで処理します。

ALICE 100 NEM:XEM <-> TICKET 1 FOO:BAR

これにより、支払いをしたのに、チケットが手に入らないといった問題などが回避できます。

このタイプのトランザクションは、少しテクニカルです。

transfer transaction作成

まず、ALICEはXEMを送るトランザクションと、BARをもらうトランザクションを作ります。

  • AliceToTicketTx (ALICE → TICKET DISTRIBUTOR)
  • TicketToAliceTx (TICKET DISTRIBUTOR → ALICE)

AliceToTicketTx & TicketToAliceTx

この時点で、署名はしません。（できません）

aggregate transaction作成

次に、aggregate transactionを作ります。
この中に、先ほどのAliceToTicketTxとTicketToAliceTxを入れます。

aggregate tx

そして、このトランザクションにALICEが署名しますが、まだネットワークには送信しません。

また、このaggregate txを、aggregate bonded transactionと呼ぶようです。

lock funds transaction作成

ALICEは、このaggregate txを送信するために、いくらかのXEMを保証金としてネットワーク上でロックしなければなりません。

そのためのトランザクションとして、lock funds transactionを作成します。
この中に、先ほどのaggregate tx（のハッシュ）と、保証金の10XEMを入れます。

lock funds transaction

ALICEはこれに署名をして、ネットワークに送信し、ブロックに取り込まれるまで待ちます。

Ticket Distributorによるaggregate transaction署名

先ほどのlock funds txがブロックに取り込まれたら、aggregate txの準備が完了です。

なので、ALICEはaggregate txをネットワークに送信します。

そして、Ticket Distributorは、ネットワークからこのトランザクションを入手し、連署（cosign）します。

cosign by distributor

この条件がそろって初めて、aggregate txは成立します。

やがてハーベストにより、ブロックに取り込まれ、トランザクションが完結し、保証金も返却されます。

コード

transaction作成

  • transfer transaction作成
  • aggregate transaction作成
  • lock funds transaction作成

こちらを動かします。
Creating an escrow with aggregate bonded transaction

ただ、自分の環境では、// announce signed transaction以下のannounceAggregateBondedがうまく動かなかったので、時限で発動するようにしました。

transactionHttp.announce(lockFundsTransactionSigned).subscribe(x => console.log(x),
err => console.error(err));

setTimeout(() => transactionHttp.announceAggregateBonded(signedTransaction).subscribe(x => console.log(x),
err => console.error(err)), 30000);

また、ハッシュと署名者を表示するようにしました。

console.log('lockFundsTransactionSigned.hash  : ' + lockFundsTransactionSigned.hash);
console.log('lockFundsTransactionSigned.signer: ' + lockFundsTransactionSigned.signer);
console.log('aggregateTransactionSigned.hash  : ' + signedTransaction.hash);
console.log('aggregateTransactionSigned.signer: ' + signedTransaction.signer);
ぜんぶ
aggescrow.js
const nem2Sdk = require("nem2-sdk");

const Address = nem2Sdk.Address,
    Deadline = nem2Sdk.Deadline,
    Account = nem2Sdk.Account,
    UInt64 = nem2Sdk.UInt64,
    NetworkType = nem2Sdk.NetworkType,
    PlainMessage = nem2Sdk.PlainMessage,
    TransferTransaction = nem2Sdk.TransferTransaction,
    Mosaic = nem2Sdk.Mosaic,
    MosaicId = nem2Sdk.MosaicId,
    TransactionHttp = nem2Sdk.TransactionHttp,
    XEM = nem2Sdk.XEM,
    AggregateTransaction = nem2Sdk.AggregateTransaction,
    PublicAccount = nem2Sdk.PublicAccount,
    LockFundsTransaction = nem2Sdk.LockFundsTransaction,
    Listener = nem2Sdk.Listener;



// Replace with private key
const alicePrivateKey = '31B96EEB0C7FD6F8FB6B4ED09A9EB142A42B194AFBEB9EB52F0B79889F22326E';

// Replace with public key
const ticketDistributorPublicKey = '5D9513282B65A12A1B68DCB67DB64245721F7AE7822BE441FE813173803C512C';

const aliceAccount = Account.createFromPrivateKey(alicePrivateKey, NetworkType.MIJIN_TEST);
const ticketDistributorPublicAccount = PublicAccount.createFromPublicKey( ticketDistributorPublicKey, NetworkType.MIJIN_TEST);

const aliceToTicketDistributorTx = TransferTransaction.create(
    Deadline.create(),
    ticketDistributorPublicAccount.address,
    [new Mosaic( new MosaicId('nem:xem'), UInt64.fromUint(100000000))],
    PlainMessage.create('send 100 nem:xem to distributor'),
    NetworkType.MIJIN_TEST,
);

const ticketDistributorToAliceTx = TransferTransaction.create(
    Deadline.create(),
    aliceAccount.address,
    [new Mosaic( new MosaicId('foo:bar'), UInt64.fromUint(1))],
    PlainMessage.create('send 1 foo:bar to alice'),
    NetworkType.MIJIN_TEST,
);

const aggregateTransaction = AggregateTransaction.createBonded(Deadline.create(),
    [
        aliceToTicketDistributorTx.toAggregate(aliceAccount.publicAccount),
        ticketDistributorToAliceTx.toAggregate(ticketDistributorPublicAccount),
    ],
    NetworkType.MIJIN_TEST);


const signedTransaction = aliceAccount.sign(aggregateTransaction);


// Creating the lock funds transaction

const lockFundsTransaction = LockFundsTransaction.create(
    Deadline.create(),
    new Mosaic( new MosaicId('nem:xem'), UInt64.fromUint(10000000)),
    UInt64.fromUint(480),
    signedTransaction,
    NetworkType.MIJIN_TEST);

const lockFundsTransactionSigned = aliceAccount.sign(lockFundsTransaction);

const transactionHttp = new TransactionHttp('http://localhost:3000');



transactionHttp.announce(lockFundsTransactionSigned).subscribe(x => console.log(x),
err => console.error(err));

setTimeout(() => transactionHttp.announceAggregateBonded(signedTransaction).subscribe(x => {console.log(x); console.log('foo')},
err => console.error(err)),30000);


console.log('lockFundsTransactionSigned.hash  : ' + lockFundsTransactionSigned.hash);
console.log('lockFundsTransactionSigned.signer: ' + lockFundsTransactionSigned.signer);
console.log('aggregateTransactionSigned.hash  : ' + signedTransaction.hash);
console.log('aggregateTransactionSigned.signer: ' + signedTransaction.signer);

Ticket Distributorによるaggregate transaction署名

こちらを動かします。
Signing announced aggregate bonded transaction

ぜんぶ
aggcosign.js
const nem2Sdk = require("nem2-sdk");

const Address = nem2Sdk.Address,
    Deadline = nem2Sdk.Deadline,
    Account = nem2Sdk.Account,
    UInt64 = nem2Sdk.UInt64,
    NetworkType = nem2Sdk.NetworkType,
    PlainMessage = nem2Sdk.PlainMessage,
    TransferTransaction = nem2Sdk.TransferTransaction,
    Mosaic = nem2Sdk.Mosaic,
    MosaicId = nem2Sdk.MosaicId,
    TransactionHttp = nem2Sdk.TransactionHttp,
    XEM = nem2Sdk.XEM,
    AggregateTransaction = nem2Sdk.AggregateTransaction,
    PublicAccount = nem2Sdk.PublicAccount,
    LockFundsTransaction = nem2Sdk.LockFundsTransaction,
    Listener = nem2Sdk.Listener,
    CosignatureTransaction = nem2Sdk.CosignatureTransaction,
    AccountHttp = nem2Sdk.AccountHttp;


const cosignAggregateBondedTransaction = (transaction, account)  => {
    const cosignatureTransaction = CosignatureTransaction.create(transaction);
    return account.signCosignatureTransaction(cosignatureTransaction);
};

// Replace with private key
const privateKey = '7808B5B53ECF24E40BE17B8EC3D0EB5F7C3F3D938E0D95A415F855AD4C27B2A4';

const account = Account.createFromPrivateKey(privateKey, NetworkType.MIJIN_TEST);
const accountHttp = new AccountHttp('http://localhost:3000');
const transactionHttp = new TransactionHttp('http://localhost:3000');

accountHttp.aggregateBondedTransactions(account.publicAccount)
    .flatMap((_) => _)
    .filter((_) => !_.signedByAccount(account.publicAccount))
    .map(transaction => cosignAggregateBondedTransaction(transaction, account))
    .flatMap(cosignatureSignedTransaction => transactionHttp.announceAggregateBondedCosignature(cosignatureSignedTransaction))
    .subscribe(announcedTransaction => console.log(announcedTransaction),
        err => console.error(err));

結果

事前確認

Alice

private: 31B96EEB0C7FD6F8FB6B4ED09A9EB142A42B194AFBEB9EB52F0B79889F22326E
public: 3390BF02D2BB59C8722297FF998CE89183D0906E469873284C091A5CDC22FD57
address: SB2Y5ND4FDLBIO5KHXTKRWODDG2QHIN73DTYT2PC

# nem2-cli account info -a SB2Y5ND4FDLBIO5KHXTKRWODDG2QHIN73DTYT2PC
Account:        SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC
-------------------------------------------------------
Mosaics
nem:xem:        409090909

十分な量のXEMを持っています。BARモザイクは持ってません。

Ticket Distributor

private: 7808B5B53ECF24E40BE17B8EC3D0EB5F7C3F3D938E0D95A415F855AD4C27B2A4
public: 5D9513282B65A12A1B68DCB67DB64245721F7AE7822BE441FE813173803C512C
address: SBWEUWON6IBHCW5IC4EI6V6SMTVJGCJWGLF57UGK

$ nem2-cli account info -a SBWEUWON6IBHCW5IC4EI6V6SMTVJGCJWGLF57UGK
Account:        SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK
-------------------------------------------------------
Mosaics
nem:xem:        409090759
foo:bar:        1000000

foo:barモザイクを持っています。持っていなければ、作ります。namespace→参考。mosaic→参考。

transaction作成

  • transfer transaction作成
  • aggregate transaction作成
  • lock funds transaction作成
$ node aggescrow.js
lockFundsTransactionSigned.hash  : 590DC17009013885F9E8A3C16E186475C427D8EF42651CA792C2C893A183F645
lockFundsTransactionSigned.signer: 3390BF02D2BB59C8722297FF998CE89183D0906E469873284C091A5CDC22FD57
aggregateTransactionSigned.hash  : 3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901
aggregateTransactionSigned.signer: 3390BF02D2BB59C8722297FF998CE89183D0906E469873284C091A5CDC22FD57
TransactionAnnounceResponse {
  message: 'packet 9 was pushed to the network via /transaction' }
TransactionAnnounceResponse {
  message: 'packet 500 was pushed to the network via /transaction/partial' }

lock funds tx

nem2-cliだとエラーになる。（なぜ？）

$ nem2-cli transaction info -h 590DC17009013885F9E8A3C16E186475C427D8EF42651CA792C2C893A183F645
Error Error: fully qualified id is invalid due to empty part (:-3087871471161192663)
    at throwInvalidFqn (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-library/dist/coders/idGenerator.js:38:8)
    at findMosaicSeparatorIndex (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-library/dist/coders/idGenerator.js:45:34)
    at Object.generateMosaicId (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-library/dist/coders/idGenerator.js:87:30)
    at Object.mosaicId (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-library/dist/transactions/NamespaceMosaicId.js:18:32)
    at new MosaicId (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-sdk/dist/src/model/mosaic/MosaicId.js:41:50)
    at CreateStandaloneTransactionFromDTO (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-sdk/dist/src/infrastructure/transaction/CreateTransactionFromDTO.js:97:249)
    at Object.exports.CreateTransactionFromDTO (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-sdk/dist/src/infrastructure/transaction/CreateTransactionFromDTO.js:66:16)
    at MapSubscriber.Observable_1.Observable.fromPromise.map [as project] (/usr/local/lib/node_modules/nem2-cli/node_modules/nem2-sdk/dist/src/infrastructure/TransactionHttp.js:55:47)
    at MapSubscriber._next (/usr/local/lib/node_modules/nem2-cli/node_modules/rxjs/operators/map.js:79:35)
    at MapSubscriber.Subscriber.next (/usr/local/lib/node_modules/nem2-cli/node_modules/rxjs/Subscriber.js:93:18)

$ curl http://localhost:3000/transaction/CFA3A4175E854B51B7D18A6DD206EF562FEC622D50AF3C03B3E333AF70C34ACC
{
  "meta": {
    "height": [
      11,
      0
    ],
    "hash": "590DC17009013885F9E8A3C16E186475C427D8EF42651CA792C2C893A183F645",
    "merkleComponentHash": "590DC17009013885F9E8A3C16E186475C427D8EF42651CA792C2C893A183F645",
    "index": 0,
    "id": "5B0D007249F94300011CA572"
  },
  "transaction": {
    "signature": "C8D1FD4D337F94194195516A95AB3A399CE611D0CF797E3F0577D7EE8F45227F6A63ECC02031388B75B01EA6E0DFF2B09CC629B3BD53AD2C18EDF6557C25EC04",
    "signer": "3390BF02D2BB59C8722297FF998CE89183D0906E469873284C091A5CDC22FD57",
    "version": 36867,
    "type": 16716,
    "fee": [
      0,
      0
    ],
    "deadline": [
      3692602683,
      15
    ],
    "duration": "480",
    "mosaicId": "-3087871471161192663",
    "amount": "10000000",
    "hash": "PC6RI4lWCWobmSAQ1l5k6vVlTI8YpmOPTgmoSaYpCQE="
  }
}

"hash": "PC6RI4lWCWobmSAQ1l5k6vVlTI8YpmOPTgmoSaYpCQE="がaggregate tx hashだと思う。

aggregate bonded tx

$ curl http://localhost:3000/transaction/3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901
{"code":"ResourceNotFound","message":"no resource exists with id '3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901'"}

ブロックには入らないんだと思う。

この段階でのAliceとTicket Distributorの状態

Alice。10XEM減りました。

$ nem2-cli account info -a SB2Y5ND4FDLBIO5KHXTKRWODDG2QHIN73DTYT2PC
Account:        SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK
-------------------------------------------------------
Mosaics
nem:xem:        409090899

Ticket Distributor。変わらず。

$ nem2-cli account info -a SBWEUWON6IBHCW5IC4EI6V6SMTVJGCJWGLF57UGK
Account:        SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK
-------------------------------------------------------
Mosaics
nem:xem:        409090759
foo:bar:        1000000

また、Ticket Distributorは、この段階でaggregate bonded txを検知できるようになります。

$ nem2-cli account aggregatebonded -p 5D9513282B65A12A1B68DCB67DB64245721F7AE7822BE441FE813173803C512C
AggregateTransaction:  
  InnerTransactions: [ 
    TransferTransaction: 
      Recipient: SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK 
      Message: "send 100 nem:xem to distributor" 
      Mosaics: 
        d525ad41d95fcf29: 100000000 
      Signer: SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC
      Deadline: 2018-05-29 
    TransferTransaction: 
      Recipient: SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC 
      Message: "send 1 foo:bar to alice" 
      Mosaics: 
        ec673e105521b12f: 1 
      Signer: SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK 
      Deadline: 2018-05-29 
    ] 
    Signer: SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC 
    Deadline: 2018-05-29 
    Hash: 3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901

Ticket Distributorによるaggregate transaction署名

$ node aggcosign.js
TransactionAnnounceResponse {
  message: 'packet 501 was pushed to the network via /transaction/cosignature' }

ブロックに取り込まれた。cosignaturesフィールドがある。

$ nem2-cli transaction info -h 3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901

AggregateTransaction: 
  Cosignatures: 
    Signer: SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK 
  InnerTransactions: [ 
    TransferTransaction: 
      Recipient: SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK 
      Message: "send 100 nem:xem to distributor" 
      Mosaics: 
        d525ad41d95fcf29: 100000000 
      Signer: SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC 
      Deadline: 2018-05-29
    TransferTransaction:
      Recipient: SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC
      Message: "send 1 foo:bar to alice" 
      Mosaics: 
        ec673e105521b12f: 1
      Signer: SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK 
      Deadline: 2018-05-29 
    ]
    Signer: SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC
    Deadline: 2018-05-29 
    Hash: 3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901

$ curl http://localhost:3000/transaction/3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901
{
  "meta": {
    "height": [
      36,
      0
    ],
    "hash": "3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901",
    "merkleComponentHash": "72DF0D2A21983C6B1B6936EE03B8B8E011703224D08417E1BECDF02EEDADEB27",
    "index": 0,
    "id": "5B0D027549F94300011CA592"
  },
  "transaction": {
    "signature": "5DAD80CA4BA4E23415ED2B4E33396D4C8E7AC960640F59F3DD0F39C2927CB740F1F46705019AE85BFA8616982783FF9BEAF1E119111E2DA2A9520B9C6D059206",
    "signer": "3390BF02D2BB59C8722297FF998CE89183D0906E469873284C091A5CDC22FD57",
    "version": 36866,
    "type": 16961,
    "fee": [
      0,
      0
    ],
    "deadline": [
      3692602609,
      15
    ],
    "cosignatures": [
      {
        "signer": "5D9513282B65A12A1B68DCB67DB64245721F7AE7822BE441FE813173803C512C",
        "signature": "3D749715D7D6ED3FD159051ADCDCCB8A0B134C2D1EDAE209361522AEC4D9ECEB3DFF6416473591CE5E7FCF0E303AF8E57E35AC086D38DB8A8D3BBE07D61F9606"
      }
    ],
    "transactions": [
      {
        "meta": {
          "height": [
            36,
            0
          ],
          "aggregateHash": "3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901",
          "aggregateId": "5B0D027549F94300011CA592",
          "index": 0,
          "id": "5B0D027549F94300011CA593"
        },
        "transaction": {
          "signer": "3390BF02D2BB59C8722297FF998CE89183D0906E469873284C091A5CDC22FD57",
          "version": 36867,
          "type": 16724,
          "recipient": "906C4A59CDF202715BA817088F57D264EA93093632CBDFD0CA",
          "message": {
            "type": 0,
            "payload": "73656E6420313030206E656D3A78656D20746F206469737472696275746F72"
          },
          "mosaics": [
            {
              "id": [
                3646934825,
                3576016193
              ],
              "amount": [
                100000000,
                0
              ]
            }
          ]
        }
      },
      {
        "meta": {
          "height": [
            36,
            0
          ],
          "aggregateHash": "3C2E91238956096A1B992010D65E64EAF5654C8F18A6638F4E09A849A6290901",
          "aggregateId": "5B0D027549F94300011CA592",
          "index": 1,
          "id": "5B0D027549F94300011CA594"
        },
        "transaction": {
          "signer": "5D9513282B65A12A1B68DCB67DB64245721F7AE7822BE441FE813173803C512C",
          "version": 36867,
          "type": 16724,
          "recipient": "90758EB47C28D6143BAA3DE6A8D9C319B503A1BFD8E789E9E2",
          "message": {
            "type": 0,
            "payload": "73656E64203120666F6F3A62617220746F20616C696365"
          },
          "mosaics": [
            {
              "id": [
                1428271407,
                3966189072
              ],
              "amount": [
                1,
                0
              ]
            }
          ]
        }
      }
    ]
  }
}

最終的なAliceとTicket Distributorの状態

Alice。めでたくfoo:barモザイクをもらった。XEMは、ロックした分は返ってきて、トータル100減った。409090909→409090899→409090809

$ nem2-cli account info -a SB2Y5ND4FDLBIO5KHXTKRWODDG2QHIN73DTYT2PC
Account:        SB2Y5N-D4FDLB-IO5KHX-TKRWOD-DG2QHI-N73DTY-T2PC
-------------------------------------------------------
Mosaics
nem:xem:        409090809
foo:bar:        1

Ticket Distributor。foo:barが1減って、XEMが100増えた。409090759→409090859

$ nem2-cli account info -a SBWEUWON6IBHCW5IC4EI6V6SMTVJGCJWGLF57UGK
Account:        SBWEUW-ON6IBH-CW5IC4-EI6V6S-MTVJGC-JWGLF5-7UGK
-------------------------------------------------------
Mosaics
foo:bar:        999999
nem:xem:        409090859

Ticket Distributorがcosignしなかったら

Aliceが作ったaggregate txに、チケット販売者が連署しなかった場合、Aliceの保証金10XEMは、永遠にロックされたままと思われる。

試しに、aggregate txの有効期限（Duration）を10ブロックで設定し、期限切れになるのを待ってみた。

期限が切れた後も、# nem2-cli account aggregatebonded -p <略>でaggregate txは見れる。そして、連署のプログラムを流し、aggregate txをブロックに取り込める状態にした。

しばらく経って、nem2-cli transaction info -h <略>でaggregate txを見に行っても見つからなかった。ブロックに取り込まれなかったものと思われる。

AliceのXEMは10減り、そのほかは変わらずだった。

lock funds 設定

config-network.propertiesで、lock fundsの数量が決められるかもしれない。

[plugin:catapult.plugins.lock]
lockedFundsPerAggregate = 10'000'000

nemesisブロックの設定で、小数点の設定をいじると、また必要な量が変わってくるかも。

[mosaic>nem:xem]
divisibility = 6

Ticket Distributorが自動的に連署する

Signing announced aggregate bonded transactions automatically

validTransaction関数により、指定のモザイクで、指定の数量以上の支払いかどうかをチェックしている。

コメント

  • mosaicIdの表現がいっぱいある。
  • mosaicってCase Sensitiveだっけ・・・
  • jsonは縦に長くなる
  • 説明が長くなる
  • プログラム読むのが早い
  • 下記について理解したい。

To fetch aggregate bonded transactions that should be signed by multisig cosignatories, refer to the multisig public key instead. See how to get multisig accounts where an account is cosignatory.

関連

nem catapult aggregate tx その１ 1-to-nアドレス宛送信

nem catapult aggregate tx その３ 内部tx実行順序

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