November 2018
Intermediate to advanced
528 pages
13h 21m
English
Content preview from Blockchain By Example
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The complete token sale contract
Our basic implementation is now complete, and can be compiled by running the following from our project directory:
truffle compile
Here is the full code of our token sale contract as is. You will notice that an additional helper function, safeMultiply(), has been added – this will be explained in the next section:
pragma solidity ^0.4.24;import "./PacktToken.sol";contract PacktTokenSale { PacktToken public tokenContract; uint256 public tokenPrice; uint256 public tokensSold; address owner; event Sell(address indexed _buyer, uint256 indexed _amount); constructor(PacktToken _tokenContract, uint256 _tokenPrice) public { owner = msg.sender; tokenContract = _tokenContract; tokenPrice = _tokenPrice; } function ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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