Mastering Blockchain Programming with Solidity

Every transaction consumes gas in ether

The gas consumption that we are going to talk about is with respect to the Ethereum blockchain. We are not going to talk about how other types of blockchain treat their smart contract executions.

On the Ethereum blockchain, every transaction that sends ether consumes gas; in the same way, to execute a smart contract's logic, the transaction initiator has to pay gas in ether. As a developer, you must ensure that the logic of your smart contract is not complex and consumes optimal gas. You might need to re-design your logic to ensure that gas consumption is not very high.