Counter

A simple counter contract demonstrating basic state management, events, custom errors, and owner-only access control.

beginner Open in Playground →
counter/counter.sol 
// Source file not found

Overview

The counter example is the simplest SolScript contract. It demonstrates:

  • State variables: uint256 for the count and address for the owner
  • Events: Emitted on increment, decrement, and reset
  • Custom errors: Underflow() and Unauthorized()
  • Modifiers: onlyOwner restricts reset to the deployer
  • Constructor: Sets the initial owner

This is a great starting point for understanding how SolScript maps Solidity concepts to Solana programs.