🪙 Tokens

Introducing tokens

Last week we added access control to our game. We now have a basic two-player game that's restricted to specific players authenticated by address. This week, we'll turn this one shot game into a repeated one with support for multiple simultaneous games, and add a leaderboard to track wins over time. We'll also explore our first Ethereum native contract abstraction: the ERC20 token standard.

Goals this week

• Support multiple players and multiple games.
• Learn about Solidity structs and mappings.
• Award points to winners and track their balances on a global leaderboard.
• Learn about the ERC20 token standard.
• Refactor our custom leaderboard to use an ERC20 token.

Suggested homework

• Read the ERC-20 token standard.
• Read a few implementations of ERC20: OpenZeppelin, ConsenSys, Solmate, ds-token.
• Watch Creating your own ERC20 token in more than 2 hours.