Ethereum IPFS Solidity Web3.js ReactJS – 以太坊IPFS Solidity Web3.js区块链毕设代写

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Ethereum IPFS Solidity Web3.js ReactJS

  • Fully decentralized Application published on IPFS

Interaction with the Smart Contract

Ethereum IPFS Solidity Web3.js ReactJS - <a href=以太坊ethIPFS Solidity Web3.js”>

  • Create, compile, deploy and add a Smart Contract to a Blockchain
  • Interaction with Smart Contract:
  1. Connect with a Blockchain via Web3
  2. Run a decentralized Application (dApp) and upload a Video
  3. Publish a Video through InterPlanetary File System (IPFS)
  4. Get Hash from published Video
  5. Adding the Video Hash to a Smart Contract through a Transaction
  6. User of Smart Contract improve the Transaction
  7. Adding the Video Hash and User Address to the Smart Contract

Commands

Command Description
Truffle
truffle migrate Running the Migrate Script and deploy the Smart Contract to the Blockchain
truffle migrate Running the Migrate Script and deploy a new Smart Contract to the Blockchain
truffle console Running a JavaScript Runtime Environment that can interact with the Blockchain
truffle test Running Test to check the Smart Contract
truffle networks Listing all Addresses of deployed Smart Contract
Truffle Console
dVideo = await DVideo.deployed() Getting the deployed Smart Contract as JavaScript Version
dVideo Printing out the deployed Smart Contract as JavaScript Version
name = await dVideo.name() Getting the public State Variable ‘name’ from the deployed Smart Contract
name Printing out the public State Variable

Dependencies

  • Node.js: It allows to install all Dependencies and run the Client-side Application
  • Truffle Framework: A Framework for Creating Ethereum Smart Contracts. It allows creating, testing and deploying Smart Contracts on a Blockchain
  • Ganache: It provides a locally Blockchain for Testing Purpose
  • MetaMask: A Browser Extension to connect with the Blockchain. It contains the Wallet for Ethereum
  • Web3.js Connect the Browser with MetaMask Extension to the Blockchain based Website

Update Dependencies (Node.js Modules)

  • npm install -g npm-check-updates: Installing the Node.js-Check-Updates Module
  • ncu –u: This will update the package.json File as the latest Versions available in npm Repositories on Web
  • npm install: This will update the local node_modules Repository with the Versions present in package.json
  • npm install –package-lock-only: This will update the Versions present in package-lock.json

Ethereum IPFS Solidity Web3.js ReactJS

  • 与智能合约的交互:

Interaction with the Smart Contract

与智能合约的交互,部署智能合约并将其添加到区块链blockchain

  • 与智能合约的交互:
  • 通过Web3连接区块链blockchain
  • 运行去中心化应用程序(dApp)并上传视频
  • 通过星际文件系统(IPFS)发布视频
  • 从发布的视频获取哈希
  • 添加通过事务将视频哈希添加到智能合约中
  • 智能合约的用户改进事务
  • 将视频哈希和用户地址添加到智能合约中
  • Node.js:它允许安装所有依赖项并运行客户端应用程序
  • Truffle Framework:用于创建以太坊eth的框架智能合约。它允许在区块链blockchain上创建、测试和部署智能合约
  • Ganache:它提供一个本地区块链blockchain用于测试目的
  • 元掩码:一个浏览器扩展,用于连接区块链blockchain。它包含以太坊eth的钱包
  • Web3.js将带有MetaMask扩展的浏览器连接到基于区块链blockchain的网站
  • npm install-g npm check updates:安装Node.js-check-updates模块
  • ncu–u:这将把package.json文件更新为网络上npm存储库中可用的最新版本
  • npm install:这将用package.json中的版本更新本地节点模块存储库,npm install–仅包锁定:这将更新package-lock.json中的版本,并将智能合约部署到区块链blockchain 块菌迁移 运行迁移脚本并将新的智能合约部署到区块链blockchain 块菌控制台 运行可以与区块链blockchain交互的JavaScript运行时环境 块菌测试 运行测试以检查智能合约 块菌网络 列出已部署智能合约的所有地址 Truffle控制台 dVideo=await dVideo.deployed() 获取已部署智能合约的JavaScript版本 dVideo 打印已部署智能合约的JavaScript版本 name=awaitdVideo.name() 从部署的智能合约获取公共状态变量’name’ name 打印出公共状态变量

    1. 通过星际文件系统(IPFS)发布视频
    2. 从发布的视频获取哈希
    3. 添加通过事务将视频哈希添加到智能合约中
    4. 智能合约的用户改进事务
    5. 将视频哈希和用户地址添加到智能合约中
    6. Node.js:它允许安装所有依赖项并运行客户端应用程序
    7. Truffle Framework:用于创建以太坊eth的框架智能合约。它允许在区块链blockchain上创建、测试和部署智能合约

    Commands

    Command Description
    块菌迁移 运行迁移脚本并将新的智能合约部署到区块链blockchain
    块菌控制台 运行可以与区块链blockchain交互的JavaScript运行时环境
    块菌测试 运行测试以检查智能合约
    块菌网络 列出已部署智能合约的所有地址
    Truffle控制台 Running Test to check the Smart Contract
    truffle networks dVideo=await dVideo.deployed()
    获取已部署智能合约的JavaScript版本 dVideo
    打印已部署智能合约的JavaScript版本 name=awaitdVideo.name()
    从部署的智能合约获取公共状态变量’name’ name
    打印出公共状态变量 Getting the public State Variable ‘name’ from the deployed Smart Contract
    name Printing out the public State Variable

    Dependencies

    • Ganache:它提供一个本地区块链blockchain用于测试目的
    • 元掩码:一个浏览器扩展,用于连接区块链blockchain。它包含以太坊eth的钱包
    • Web3.js将带有MetaMask扩展的浏览器连接到基于区块链blockchain的网站
    • npm install-g npm check updates:安装Node.js-check-updates模块
    • ncu–u:这将把package.json文件更新为网络上npm存储库中可用的最新版本

    Update Dependencies (Node.js Modules)

    • npm install:这将用package.json中的版本更新本地节点模块存储库,npm install–仅包锁定:这将更新package-lock.json中的版本,并将智能合约部署到区块链blockchain 块菌迁移 运行迁移脚本并将新的智能合约部署到区块链blockchain 块菌控制台 运行可以与区块链blockchain交互的JavaScript运行时环境 块菌测试 运行测试以检查智能合约 块菌网络 列出已部署智能合约的所有地址 Truffle控制台 dVideo=await dVideo.deployed() 获取已部署智能合约的JavaScript版本 dVideo 打印已部署智能合约的JavaScript版本 name=awaitdVideo.name() 从部署的智能合约获取公共状态变量’name’ name 打印出公共状态变量
    • ncu –u: This will update the package.json File as the latest Versions available in npm Repositories on Web
    • npm install: This will update the local node_modules Repository with the Versions present in package.json
    • npm install –package-lock-only: This will update the Versions present in package-lock.json
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