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Welcome to the Web3 Together community! Here you can connect with other developers and share knowledge about every part of blockchain development, including DeFi, NFTs, DAO, etc...

Join the discussions 💬

Resources

Basic Introduction

Books

• How to Bitcoin by CoinGecko

• The Basics of Bitcoins and Blockchains by Antony Lewis

• Grokking Bitcoin by Kalle Rosenbaum

• Cryptoassets: The Innovative Investor's Guide to Bitcoin and Beyond by Chris Burniske Jack Tatar

• The Bitcoin Standard by Saifedean Ammous

• Mastering Bitcoin by Andreas M. Antonopoulos

Courses

• Introduction to Digital Currencies by University of Nicosia

• Blockchain: Foundations and Use Cases by ConsenSys Academy

• Blockchain and Money by MIT

Videos

• Whiteboard Crypto

• Bitcoin 99

• Finematics

• Coin Bureau

• Dapp University

• EatTheBlocks

• School of Block

• Patrick Collins

• Austin Griffith

Podcasts

• DAOn the Rabbit Hole

• On The Ledger

• Bankless

Links

• Decrypt Learn

• KOOMPI AMA | Blockchain Series

Web3 Decentralized Apps (dApps)

General

• Token Economy: How the Web3 reinvents the Internet by Shermin Voshmgir

• Mastering Ethereum: Building Smart Contracts and DApps by Andreas M. Antonopoulos

• Blockchain in Action by Bina Ramamurthy

• Hands-On Smart Contract Development with Solidity and Ethereum by Kevin Solorio, Randall Kanna, David H. Hoover

• Building Ethereum Dapps by Roberto Infante

Solidity

• Build a Web3 App on Ethereum with Solidity + Smart Contracts by buildspace

• Crypto Market Pool - Solidity

• Solidity by Example

• Solidity Examples

• Solidity, Blockchain, and Smart Contract Course by freeCodeCamp.org

• Learn Solidity basics by HashLips

• Ethereum and Solidity: The Complete Developer's Guide by Stephen Grider

DeFi

• How to DeFi: Beginner by CoinGecko

• How to DeFi: Advanced by CoinGecko

• DeFi and the Future of Finance by Campbell R. Harvey, Ashwin Ramachandran, Joey Santoro

• Decentralized Finance (DeFi): The Wall Street Era is Over by DEFIYIELD App

• Decentralized Finance MOOC by The University of California at Berkeley

• Introduction to Decentralized Finance (DeFi) by University of Nicosia

• Decentralised Finance: Blockchain, Ethereum, and The Future of Banking by RMIT University

NFT

• Generate your own epic NFT collection and ship a Web3 app to let friends mint them by buildspace

• The NFT Handbook by Matt Fortnow, QuHarrison Terry

DAO

• A beginner’s guide to DAOs

• DAOs & Creators: Resources to Get Started Today

Communities

• Developer DAO

• buildspace

• Web3 University

• Encode Club

• CryptoDevHub

• Questbook

• useWeb3

• BanklessDAO

• OdysseyDAO

Links

• DefiSummer: Designing Tokenomics

• Working in Web3: The Handbook

• The Architecture of a Web 3.0 application

• SpeedRunEthereum.com

Contributing

1. Fork it ( https://github.com/web3together/web3together/fork )

2. Create your feature branch (git checkout -b my-new-feature)

3. Commit your changes (git commit -am 'Add some feature')

4. Push to the branch (git push origin my-new-feature)

5. Create a new Pull Request

The Web3 Together community is a friendly, encouraging place for anyone aspiring to become a hireable web developer.

This policy was adopted from the Scrimba community. This is a "living" 🌱 document, and subject to refinement and expansion in the future.

The simple version:

• be nice

• be honest

• be supportive

The details:

The Web3 Together community should be a safe place for everybody regardless of

• gender, gender identity or gender expression

• sexual orientation

• disability

• physical appearance

• race

• age

• religion

• anything else you can think of

As someone who is part of this community, you agree that:

• We are collectively and individually committed to safety and inclusivity

• We have zero tolerance for abuse, harassment, or discrimination

• We respect people’s boundaries and identities

If you are addressed for saying something that is found to be offensive, we ask you to:

• Listen without interruption to what the person is saying

• Do not attempt to disqualify what they have to say

• Ask for tips / help with avoiding making the offence in the future

⚠️ Failing to follow the community guidelines as described in this document carries consequences. For minor infractions, you may be banned from the Web3 Together Discussion for 24 hours and issued a final warning. Upon repeat offences, or if the community believes you are not acting in good faith, you may be banned permanently.

This guide is prepared by @BunHouth.

Solidity

Solidity is an object-oriented, high-level language for implementing smart contracts. Smart contracts are programs which govern the behaviour of accounts within the Ethereum state. Solidity is a curly-bracket language. It is influenced by C++, Python and JavaScript, and is designed to target the Ethereum Virtual Machine (EVM).

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.

Setup Development

Prerequisites

• Operating system: OSX or Linux(Ubuntu, Cenos, ...etc)

• Software: node js(npm, yarn) or python

Install node js

Ubuntu

 curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
 echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
 sudo apt-get update
 sudo apt-get install nodejs
 sudo apt install yarn

OSX

brew install node
brew install yarn

Setup smart contract project

Install Truffle

npm install -g truffle

Install Ganache Local Network

npm install -g ganache-cli

Generate smart contract

Reference generate blank project

mkdir web3together && cd web3together
truffle init

Structures:

1. /contracts: store original codes of the smart contract. We will place our HelloWorld.sol file here.

2. /migrations: deploy the smart contract in the “contracts” folder.

3. /test: test codes for your smart contract, support both JavaScript and Solidity.

4. truffle.js: configuration document.

5. truffle-config.js: configuration of deployment.

Step 2: Create HelloWeb3Together contract. There are two ways to create a new contract: Directly place HelloWeb3Together.sol” file under “contracts” folder. In the “web3together” folder, run command:

truffle create contract Web3Together

Copy the following codes into HelloWeb3Together.sol”:

pragma solidity >=0.4.22 <0.9.0;

contract HelloWeb3Together {
    function ping() public pure returns (string memory) {
        return ("Web3Together - https://github.com/web3together/web3together");
    }

    function clock() public view returns (uint) {
        return block.timestamp;
    }
}

Step 3: Compile “HelloWeb3Together” with the following command.

truffle compile

This compiles the original code into Ethereum bytecode. If everything goes well, it will create .json file under build/contracts folder. Step 4: Deploy “HelloWeb3Together” contract.

1. Create 2_deploy_contracts.js under migrations folders. Truffle is run following order

2. Copy and past the following deploying content into the “2_deploy_contracts.js”.

const HelloWeb3Together = artifacts.require("./HelloWeb3Together.sol");
module.exports = (deployer) => {
  deployer.deploy(HelloWeb3Together);
}

1. Modify truffle-config.js and add following content to network section. If you are using public chain or private chain please add many section as you want.

development: {
     host: "127.0.0.1",
     port: 8545,
     network_id: "*",
},

1. Start Ganache Local network and run following command on other tab or new terminal

ganache-cli

1. Deploy smart contract to local network

truffle migrate

if contract already deploy and want to redeploy please add --reset option After run truffle migrate we will see deploy log in the same terminal. 6. Additional setup for deploy contract to public chain testnet(rinkeby)

Additional dependency

yarn add @truffle/hdwallet-provider dotenv

Add following content into network sections. reference

    rinkeby: {
      provider: () => new HDWalletProvider("PrivateKeyToUnlockYourWallet", 'RPC_URL'),
      network_id: 4, //check here https://chainlist.org/
      gas: 5500000,
      confirmations: 2,
      timeoutBlocks: 200,
      skipDryRun: true,
    },

RPC Service

1. infura

2. alchemy

3. build your own

🎉Congrats! The “Web3Together” smart contract has been successfully deployed to Ganache.

Running Smart Contract online tool

Remix