📘 Web3 Dev Basics: Transactions & Gas Fees ⛽

Now that we understand wallets, the next key concept in Web3 is transactions.

A transaction is any action you send to the blockchain, such as:

◽sending tokens

◽interacting with a smart contract

◽minting an NFT

◽approving a contract

◽Every transaction requires gas fees.

What are gas fees?

Gas fees are the cost of using the blockchain network.

They pay validators to process and secure your transaction.

Think of gas as:

- the “fuel” that powers your action on the blockchain.

Why this matters for developers

As a Web3 developer, you need to:

optimize your smart contracts to reduce gas costs

understand how transactions are signed and sent

handle transaction states in your frontend (pending, success, failed)

Let’s discuss: Have you ever sent a transaction before?

What surprised or confused you about gas fees?

Drop your experience below 👇 let’s learn together.