Material of the P2P and Blockchains Course

Folders

• contracts: contains the smart contracts

• • DAppContract.sol: Contract used in the DApp tutorial
• • Migrations.sol: Truffle's
• • MyContract.sol: Contract shown in the slides
• • NFT.sol: Contract used to show how to test a contract during the class

• migrations: Truffle's migration scripts folder

• src: contains the DApp html, js, and css files

• test: contains the Javascript test scripts

Test the smart contracts

• Run ganache with ganache -p 8545
• Compile the contracts with truffle compile
• Test with truffle test or truffle test test/file.js

Execute the DApp

WARNING: tested on Google Chrome

• Install the dependencies web3, truffle-contract, lite-server (see package.json) with npm install
• Run ganache with ganache -p 8545
• Compile the contracts with truffle compile
• Migrate the contracts with truffle migrate
• • Be aware the contracts are migrated on ganache at port 8545 (check truffle-config.js)
• • run the lite server with npm run dev
• • Go to the browser, open Metamask, connect Metamask to ganache and to the DApp (there should be a button "connect to DApp"), and import an account by copying and pasting a ganache private key under "import account"
• • Play with the (limited) DApp and check out the transactions outcomes