April 2017
Intermediate to advanced
266 pages
7h 4m
English
Content preview from Building Blockchain Projects
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Gas
Gas is a unit of measurement for computational steps. Every transaction is required to include a gas limit and a fee that it is willing to pay per gas (that is, pay per computation); miners have the choice of including the transaction and collecting the fee. If the gas used by the transaction is less than or equal to the gas limit, the transaction processes. If the total gas exceeds the gas limit, then all changes are reverted, except that the transaction is still valid and the fee (that is, the product of the maximum gas that can be used and gas price) can still be collected by the miner.
The miners decide the gas price (that is, price per computation). If a transaction has a lower gas price than the gas price decided by a miner, the ...
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