start-solidity – 开始稳定区块链毕设代写

区块链毕设代写本文提供国外最新区块链项目源码下载,包括solidity,eth,fabric等blockchain区块链,start-solidity – 开始稳定区块链毕设代写 是一篇很好的国外资料

start-solidity

Let’s get started with developing DApp (Ethereum – solidity)

  • OS: ubuntu linux
  • node.js
  • web3.js
  • truffle
  • ganache
  • solc

Web3

web3.js is a collection of libraries that allow you to interact with a local or remote ethereum node using HTTP, IPC or WebSocket.

  • web3 (v1.3.0) doc
Web3 = require('web3'); // ganache server: localhost:8545 web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545')); // or var web3 = new Web3('http://localhost:8545');

making web3 Object

getAccounts

Returns: Promise returns Array – An array of addresses controlled by node.

web3.eth.getAccounts().then(console.log); // not web3.eth.accounts
  • Ganache에서 만든 10개의 accounts에 대한 주소를 보여준다.
  • “web3.eth.accounts” not supported? #246

getBalance

Get the balance of an address at a given block.

web3.eth.getBalance('address of an account').then(console.log);

fromWei

Converts any wei value into a ether value.
ether 단위 계산

// previous version > web3.fromWei() web3.utils.fromWei(number [, unit])
  • number: string in wei(wei 단위로)

Ganache

Ganache is a personal blockchain for rapid Ethereum and Corda distributed application development. (trufflesuite)

$ npm install ganache-cli $ node_modules/.bin/ganache-cli
  • Github ganache-cli

How to deploy contract?

Deploy the Solidity Contract

Reference

  • DApp University – Ethereum(solidity) Base

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参考

让我们开始开发DApp(以太坊eth-solidity)

  • OS:ubuntu linux
  • 节点.js
  • web3.js
  • 松露。
  • “网络3。eth账户“不支持?#246
  • 编号:wei中的字符串(wei단위로)

基本cookies

web3.js是一个库集合,允许您使用HTTP、IPC或WebSocket与本地或远程以太坊eth节点进行交互。

  • Github-ganache cli
Web3 = require('web3'); // ganache server: localhost:8545 web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545')); // or var web3 = new Web3('http://localhost:8545');

使web3成为对象

始终处于活动状态

返回:Promise返回Array-由节点控制的地址数组。

web3.eth.getAccounts().then(console.log); // not web3.eth.accounts
  • DApp大学-以太坊eth(solidity)基地
  • “web3.eth.accounts” not supported? #246

分析cookies

获取给定块地址的余额。

web3.eth.getBalance('address of an account').then(console.log);

fromWei

将任何wei值转换为以太值。
ether단위계산

// previous version > web3.fromWei() web3.utils.fromWei(number [, unit])
  • number: string in wei(wei 단위로)

Ganache

Ganache是用于快速以太坊eth和Corda分布式应用程序开发的个人区块链blockchain。(trufflesuite)

$ npm install ganache-cli $ node_modules/.bin/ganache-cli
  • Github ganache-cli

How to deploy contract?

部署Solidity合同

Reference

  • DApp University – Ethereum(solidity) Base

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