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README.md

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  1. what is Web3.js
  2. Modules
  3. Web3.js with chrome console
  4. ABI and bytecode
  5. compilation
  6. deployment

Prerequisites

  • blockchain
  • ethereum
  • solidity
  • js

Software Requirement

  • Node js
  • Vs code

Web3 js

  • web3 js is a collection of libraries that allow you to imteract with local or remote ethereum mode using HTTP,IPC or websocket

remix IDE

Solidity

Ganache

  • npm install -g ganache-cli
  • ganache-cli --version
  • npm install -g ethereumjs-testrpc

for GUI Ganache

  • Download image from link
  • chmod a+x ganache-2.5.4-linux-x86_64.AppImage
  • ./ganache-2.5.4-linux-x86_64.AppImage
  • More for Ganache

Truffle Compile contract

  • npm install -g truffle on your terminal

  • cd to your main dir and RUN:- truffle init

  • Compilation of contract on truffle

  • make new contract on /contracts test.sol

  • and compile contract using : truffle compile

  • RUN Ganche

  • RUN truffle migrate

  • If Contract file was rewrite and change something on sol file than you cant migarte you need truffle migrate --reset

Infura

  • for connect with infura you need install this package
  • npm install @truffle/hdwallet-provider
  • RUN truffle migrate --network repston