hyperledger Composer如何实现转账功能

这篇文章将为大家详细讲解有关hyperledger Composer如何实现转账功能，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

/* * @param {org.example.mynetwork.SetupDemo} setupDemo * @transaction */async function initializationFun(setupDemo) {    const NS = "org.example.mynetwork";    const factory = getFactory();    //创建三个参与者    var zhangsan = factory.newResource(NS, "Person", 'zhangsan001')    zhangsan.name = "张三";    zhangsan.balance = 100;    var lisi = factory.newResource(NS, "Person", 'lisi')    lisi.name = "李四";    lisi.balance = 100;    var wangwu = factory.newResource(NS, "Person", 'wangwu')    wangwu.name = "王五";    wangwu.balance = 100;    const partRegistry = await getParticipantRegistry(NS+'.Person')    await partRegistry.add(zhangsan);    await partRegistry.add(lisi);    await partRegistry.add(wangwu);       //创建资产    var car = factory.newResource(NS, "Car", '川A0001')    car.personId = zhangsan.id;    car.color = "red"    const assetRegistry = await getAssetRegistry(NS+'.Car');    await assetRegistry.add(car)}/** * Sample transactiontransaction TransactionCar{ * @param {org.example.mynetwork.TransactionCar} transactionCar * @transaction */async function transactionCarFun(transactionCar){    const NS = "org.example.mynetwork";    const from = transactionCar.from;    const to = transactionCar.to;    const price = transactionCar.price;    from.balance = from.balance + price;    to.balance  = to.balance - price;    const partRegistry = await getParticipantRegistry(NS+'.Person')    await partRegistry.update(from);    await partRegistry.update(to);        debugger    const car = transactionCar.car;    car.personId = to.id;    if(!car.transactionCars){       car.transactionCars = []      }      car.transactionCars.push(transactionCar)    const assetRegistry = await getAssetRegistry(NS+".Car");    await assetRegistry.update(car);}

/** * Write your model definitions here */namespace org.example.mynetworkparticipant SampleParticipant identified by participantId {  o String participantId  o String firstName  o String lastName}asset SampleAsset identified by assetId {  o String assetId  --> SampleParticipant owner  o String value}transaction SampleTransaction {  --> SampleAsset asset  o String newValue}event SampleEvent {  --> SampleAsset asset  o String oldValue  o String newValue}participant Person identified by id {  o String id  o String name  o Double balance}abstract asset  Vehicle identified by licensePlate {  o String licensePlate  o String color} asset Car extends Vehicle {  o String personId  o TransactionCar[] transactionCars optional}transaction SetupDemo {}transaction TransactionCar{  o Double price  o String car  o String from  o String to}

/* * 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. *//** * Sample access control list. */rule Default {    description: "Allow all participants access to all resources"    participant: "ANY"    operation: ALL    resource: "org.example.mynetwork.*"    action: ALLOW}rule SystemACL {    description:  "System ACL to permit all access"    participant: "org.hyperledger.composer.system.Participant"    operation: ALL    resource: "org.hyperledger.composer.system.**"    action: ALLOW}rule NetworkAdminUser {    description: "Grant business network administrators full access to user resources"    participant: "org.hyperledger.composer.system.NetworkAdmin"    operation: ALL    resource: "**"    action: ALLOW}rule NetworkAdminSystem {    description: "Grant business network administrators full access to system resources"    participant: "org.hyperledger.composer.system.NetworkAdmin"    operation: ALL    resource: "org.hyperledger.composer.system.**"    action: ALLOW}

{  "$class": "org.example.mynetwork.TransactionCar",  "price": 10,  "car": "川A0001",  "from": "zhangsan001",  "to": "lisi"}

关于"hyperledger Composer如何实现转账功能"这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。