This repo contains the on-chain contracts for an hybrid on/off-chain auction.
Auction.sol is the on-chain contract for a two phase hybrid on/off-chain auction. The auction consists of :
- purchase phase
- process bid phase
There are two contracts that get deployed, the token contract and the auction contract. The token contract is ConsenSys' HumanStandardToken which is ERC-20 compliant (it adds some properties for easier human readability, hence the name).
For Auction.sol, SafeMath is used to check for uint256 overflow (an example ).
Please see comments in contract for more details. Values can be configured using conf/data.json and conf/config.js
If not already installed, get Node.js and npm. Node.js version 8+ required.
This project uses the Truffle Framework and testrpc
At the time of this writing, the latest supported version of truffle uses Solidity 0.4.15. The contracts only compile using solc version 0.4.15.
npm install -g truffle
npm install -g ethereumjs-testrpc
1. npm install
- copy and pase the testrpc command in a terminal window (from any directory) :
testrpc --gasPrice 3 --account="0x99a53a700f6cc2a5890e45fe7dced2d94b720df8596f67ce2503d1fec86a1d23, 500000000000000000000000000000000000000000000000000000000000000000000000000000000" --account="0xa36bddfa1f57d0ffb0c83e382b9879f8387935178e8e819e6ee6038764f10d59, 500000000000000000000000000000000000000000000000000000000000000000000000000000000" --account="0x0a96aff0b2582b2637fa0e9b3a56c0dc7e4ad952fd3e2432bcbe996ca268473a, 0" --account="0xc5e51e235e3a6de5060b9abafd64b9a87dab42f5c5c00d634e8953096825dd1c, 0" --account="0x74dfae24d3792ecf85a4a708dbcd6c555f463d674922612302a1531d5cd94f63, 50000000000000000000000000000000000000000" --account="0xac2f0b857247cc0c57dcc6b7e697c2b3a05b80361264fcaeab851599e92cf59f, 50000000000000000000000000000000000000000"
dervied from (pubkey prikey)
0x0bCAA9d3aE0e85D8774CdBE5991985CeFb8f0EAa 0x99a53a700f6cc2a5890e45fe7dced2d94b720df8596f67ce2503d1fec86a1d23 // token contract owner
0x0Ab182C0A3346bF5c569Db03321533b45dfd30ff 0xa36bddfa1f57d0ffb0c83e382b9879f8387935178e8e819e6ee6038764f10d59 // auction contract owner
0xc92F8E8E0b6c0a1036C290cEC9C9C3Ad6233ada0 0x0a96aff0b2582b2637fa0e9b3a56c0dc7e4ad952fd3e2432bcbe996ca268473a // wei wallet
0x6FD77f00449cAA1d22698b3D92731e186924b76a 0xc5e51e235e3a6de5060b9abafd64b9a87dab42f5c5c00d634e8953096825dd1c // token wallet
0x1fF2ae37ce02d20c32141F92aE79ce90E37a73f1 0x74dfae24d3792ecf85a4a708dbcd6c555f463d674922612302a1531d5cd94f63 // buyer
0x82147345a8Bb84Ae13a0c8f4aa8954B69e9022c1 0xac2f0b857247cc0c57dcc6b7e697c2b3a05b80361264fcaeab851599e92cf59f // buyer
- In a new terminal window, get back to this repo's top level directory and type :
truffle test
- inspired by Nick Johnson's auction contract : https://gist.github.com/Arachnid/b9886ef91d5b47c31d2e3c8022eeea27
- many extremely helpful code reviews with Ameen and Yogesh
- please improve on this and make it better, pull requests welcome! 🚀
- toward better and more efficient token sales - ENJOY!
