基于区块链的毕业设计How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork – 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

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How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork

Truffle v4.1.14 (core: 4.1.14) Solidity v0.4.24 (solc-js) Node v12.0.0 [email protected] react v17.0.2 

Smart Contract deployed to the Rinkeby Test Network

  • Contract Address 0xf6e09b77560702d07472889472ab972735e699f6
  • Contract Deployed using Infura
  • Truffle development suite used for development

React Hooks have been used, Context API has been used for state management

This app will detect two very important changes

  • If the user changes his metamask account and if he changes to another network other than Rinkeby

How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

If the user sets metamask to use another network an error message will be shown

How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

After sending a message, metamask browser extension will open asking for the user to check the gas cost and to confirm

How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

Finally the user will be able to get the message from the Rinkeny test network, as this is a read only function in the smart contract it will not create any cost

How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

Made by Antonio Salazar. ? (to be published as a Medium article)


如何将React应用程序连接到部署到Rinkeby测试网络的智能合约

已使用部署到Rinkeby测试网络的智能合约

React钩子,上下文API已用于状态管理

  • 合同地址0xf6e09b77560702d07472889472ab972735e699f6
  • 如果用户更改了元掩码帐户并且更改到Rinkeby以外的另一个网络,则使用Infura部署用于开发的Truffle development suite
  • 合同
  • Truffle v4.1.14 (core: 4.1.14) Solidity v0.4.24 (solc-js) Node v12.0.0 [email protected] react v17.0.2 

    已使用部署到Rinkeby测试网络的智能合约

    • 合同地址0xf6e09b77560702d07472889472ab972735e699f6
    • 如果用户更改了元掩码帐户并且更改到Rinkeby以外的另一个网络,则使用Infura部署用于开发的Truffle development suite
    • 合同

    React钩子,上下文API已用于状态管理

    此应用程序将检测到两个非常重要的更改❗ ❗

    • If the user changes his metamask account and if he changes to another network other than Rinkeby

    How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

    如果用户将元掩码设置为使用另一个网络,则在发送消息后将显示错误消息,metamask浏览器扩展将打开,要求用户检查气体成本并确认

    How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

    最终用户将能够从Rinkeny测试网络获得消息,❗ 由于这是智能合约中的只读函数,因此不会产生任何成本❗

    How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

    安东尼奥·萨拉扎制造。? (将作为媒体文章发布)

    Finally the user will be able to get the message from the Rinkeny test network, as this is a read only function in the smart contract it will not create any cost

    How to connect a React Application to a smart contract deployed to the Rinkeby TestNetwork - 如何将React应用程序连接到部署到Rinkeby TestNetwork的智能合约

    Made by Antonio Salazar. ? (to be published as a Medium article)

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