Before diving straight into creating the smart contract, let's define what we need it to do:
- We need an array that will store each users' music recommendations in a string or bytes32 format
- A struct to define user information
- A mapping with each users' recommendations
- An array of followed users so that we can see new musical updates
As usual, we start by creating the basic smart contract structure:
pragma solidity 0.5.0;contract SocialMusic {}
Then, we define the variables that we'll use, as follows:
pragma solidity 0.5.0;contract SocialMusic { struct User { bytes32 name; uint256 age; string state; // A short description of who they are or how they feel string[] musicRecommendations; address[] following; } mapping(address ...
