123 lines
3.4 KiB
Markdown
123 lines
3.4 KiB
Markdown
[](https://www.npmjs.com/package/kredits-contracts)
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# Kredits Contracts
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This repository contains the Solidity smart contracts and the JavaScript API wrapper for [Kosmos
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Kredits](https://wiki.kosmos.org/Kredits).
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## Development
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### Installation
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#### App dependencies
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All requirements are defined in `package.json`.
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$ npm install
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### Local development chain
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We use [hardhat](https://hardhat.org/) as development environment for the
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smart contracts.
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To run a local development chain run:
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$ npm run devchain # or: hardhat node --network hardhat
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### Bootstrap
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1. Run an Ethereum node and ipfs
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$ npm run devchain
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$ ipfs daemon
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2. Compile contracts and build ABIs
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(compiled artifacts will be in `/artifacts`)
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$ npm run build
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3. Deploy new upgradable contract proxies
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$ npm run deploy:dao
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4. Execute seeds to create demo contributors, contributions, etc. (optional)
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$ npm run seeds
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**Step 2-4 is also summarized in `npm run bootstrap`**
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5. Show contract addresses
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$ cat lib/addresses.json
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## Fund a local development account
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If you need to fund development accounts with devchain coins:
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$ npm run fund # or hardhat fund --network localhost
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## Contract architecture
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We use the [OpenZeppelin hardhat proxy](https://www.npmjs.com/package/@openzeppelin/hardhat-upgrades) for deploying and managing upgradeable contracts. (see `scripts/create-proxy.js`)
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Each contract is independent and is connected to its dependencies by storing the addresses of the other contracts.
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## Helper scripts
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`scripts/` contains some helper scripts to interact with the contracts from the
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CLI. _At some point these should be moved into a real nice CLI._
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To run these scripts use `hardhat run`. For example: `hardhat run scripts/list-contributors.js --network localhost`. (NOTE: add `--network localhost` or the network you want to use)
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Some scripts are also defined as npm script, see package.json.
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### repl/console
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Similar to cli.js but only provides a REPL with an initialized `kredits`
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instance.
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$ hardhat console --network localhost
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### add-{contributor, contribution, proposal}.js
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Script to add a new entries to the contracts using the JS wrapper
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$ hardhat run scripts/add-{contributor, contribution, proposal}.js --network localhost
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### list-{contributors, contributions, proposals}.js
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List contract entries
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$ hardhat run scripts/list-{contributors, contributions, proposals}.js --network localhost
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### seeds.js
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Run seeds defined in `config/seeds.js`.
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$ npm run seeds
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### Get the contract addresses
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All contract addresses are stored in `lib/addresses.json`
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$ cat lib/addresses.json
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## Upgradeable contracts
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We use OpenZeppelin for an upgradeable contracts: [https://www.npmjs.com/package/@openzeppelin/hardhat-upgrades](https://www.npmjs.com/package/@openzeppelin/hardhat-upgrades)
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Refer to the OpenZeppelin README and `scripts/create-proxy.js`
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[OpenZeppelin Step by Step guide](https://forum.openzeppelin.com/t/openzeppelin-upgrades-step-by-step-tutorial-for-hardhat/3580)
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For an upgrade example checkout `scripts/upgrade-example.js`
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## Known Issues
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When resetting ganache Metamask might have an invalid transaction nonce and
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transactions get rejected. Nonces in Ethereum must be incrementing and have no
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gap.
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To solve this reset the metamask account (Account -> Settings -> Reset Account)
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