Building Blockchain Projects

Initializing truffle

First, you need to create a directory for your app. Name the directory altcoin. Inside the altcoin directory, run this command to initialize your project:

truffle init

Once completed, you'll have a project structure with the following items:

• contracts: The directory where truffle expects to find Solidity contracts.
• migrations: The directory to place files that contain contract deployment code.
• test: The location of test files to test your smart contracts.
• truffle.js: The main truffle configuration file.

By default, truffle init gives you a set of example contracts (MetaCoin and ConvertLib), which act like a simple altcoin built on top of ethereum.

Here is the source code of the MetaCoin smart contract just for reference: ...