dappsys
dappsys is contract system framework. It is a collection of Solidity contracts (classes) to help manage multi-contract dapps on ethereum.
This project is under active development and changes quickly on branch develop.Tag 0.1.2 was audited. Tag 0.2.0 is the last versioned release. Branch latest-stable is stable.
Installation
npm install -g dapple
mkdir myproject && cd myproject && mkdir dapple_packages
git submodule add https://github.com/nexusdev/dappsys dapple_packages/dappsys
Overview
Dappsys contracts are designed to be composable in two ways:
- "Within" a contract (solidity-level
contract): Many dappsys contracts are "mixin" contracts, and many contracts are defined simply by inheriting from multiple contracts with minimal additional logic - "Between" contracts (deployed autonomous objects): Contracts do one thing and one thing well. They have a minimal interface out of which consumers create higher-level abstractions. Any universal contracts ("objects" at the dappfile level) look like low-level infrastructure services (e.g. factories or an ETH erc20 wrapper).
There is a high-level overview of contracts in 0.2.0 here: https://github.com/nexusdev/dappsys/wiki/0.2.0-contracts
Major Concepts
work in progress
Authorization
Start with contracts/auth/authorized.sol.
Datastore / Controller / Frontend separation
Look at the token system, contracts/token/controller.sol and contracts/token/frontend.sol.
Data
Especially contracts/data/nullmap.sol