March 2019
Intermediate to advanced
636 pages
27h 50m
English
book
Blockchain Development with Hyperledger
by Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny
Content preview from Blockchain Development with Hyperledger
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Events
Events are used to track the execution of a transaction sent to a contract. There are convenient interfaces with the EVM logging facilities. Here is an example, as follows:
pragma solidity ^0.4.24;contract Purchase { event buyEvent(address bidder, uint amount); // Event function buy() public payable { emit buyEvent(msg.sender, msg.value); // Triggering event }}
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.