Welcome back to 30 Days of Solidity, where every day we take one step closer to mastering smart contracts — not just in theory, but in practice.

Today, we’re building something real. Something practical. Something that could literally be used in real-world marketplaces.

An escrow service.

Wait — What Even Is Escrow?

If you've ever bought something expensive online — maybe a freelance job, a second-hand gadget, or a ticket — you’ve probably wished there was some middleman to hold the money until everyone’s happy.

That’s what escrow is all about.

In the real world, companies like PayPal or eBay do this for you. They hold your money until the item arrives. If things go wrong, they step in.

But in Web3? We don’t need those companies.

We can code the middleman — and make it trustless.

What We’re Building

This contract, EnhancedSimpleEscrow, is a secure smart contract that:

• Holds ETH until the buyer confirms delivery
• Lets either party raise a dispute if things go wrong
• Allows a neutral arbiter to step in and resolve issues
• Has built-in timeout logic so the buyer isn’t left hanging forever
• Supports mutual cancellation if both parties agree to call it off

No paperwork. No waiting. No shady third party.

Just clear rules — written in Solidity.