Ubiquity Dollar

Introducing the flagship product of Ubiquity DAO. The Ubiquity Dollar (uAD) is a collateralized stablecoin.

• The deployed smart contracts can be found in the docs.
• The source code for those are archived here.

Contributing

• We welcome everybody to participate in improving the codebase and provide feedback on opened issues.
• We offer financial incentives for solved issues.
• Learn how to contribute via the DevPool here.

Installation

Requirements:

• NodeJS Version >=18
• Yarn
• We use Foundry, check their docs. Please follow their installation guide for your OS before proceeding.

Development Setup

#!/bin/bash

git clone https://github.com/ubiquity/ubiquity-dollar.git
cd ubiquity-dollar
yarn # fetch dependencies
yarn build:all # builds the smart contracts and user interface

# Optional
yarn build:dapp # to only build the UI useful for debugging
yarn build:contracts # to only build the Smart Contracts

yarn start # starts the user interface and daemonize'd to continue to run tests in the background
yarn test:all # We run all the tests!

Running workspace specific/individual commands

Using yarn workspaces, you can invoke scripts for each workspace individually.

# SCRIPT_NAME=XXX

yarn workspace @ubiquity/contracts $SCRIPT_NAME
yarn workspace @ubiquity/dapp $SCRIPT_NAME

# Some commands...

yarn workspace @ubiquity/contracts build # Build smart contracts
yarn workspace @ubiquity/contracts test # Run the smart contract unit tests

yarn workspace @ubiquity/dapp build # Build the user interface
yarn workspace @ubiquity/dapp start # Run the web application at http://localhost:3000

# check https://yarnpkg.com/features/workspaces for more yarn workspaces flexixble use cases

Committing Code/Sending PRs

1. We automatically enforce the conventional commits format for commit messages.

The Conventional Commits specification is a lightweight convention on top of commit messages. It provides an easy set of rules for creating an explicit commit history; which makes it easier to write automated tools on top of.

2. We use prettier, eslint and cspell on staged files in order to enforce a uniform code style. Please do not circumvent these rules.

3. We require all PRs to meet the issues expectation and/or to follow the discussions accordingly and implement all necessary changes and feedback by reviewers.

4. We run CI jobs all CI jobs must pass before commiting/merging a PR with no exceptions (usually a few exceptions while the PR it's getting reviewed and the maintainers highlight a job run that may skip)

5. We run Solhint to enforce a pre-set selected number of rules for code quality/style on Smart Contracts

Network Settings

Network	Chain ID	RPC Endpoint	Comment
mainnet	1	https://eth.ubq.fi/v1/mainnet	Our dedicated mainnet gateway
anvil	31337	http://127.0.0.1:8545	Used for local development
sepolia	11155111	https://ethereum-sepolia.publicnode.com	Use any public available RPC for Sepolia testing

Deploying Contracts (Ubiquity Dollar Core)

You need to create a new .env file and set all necessary env variables, example:

# Admin private key (grants access to restricted contracts methods).
# By default set to the private key from the 0x70997970c51812dc3a010c7d01b50e0d17dc79c8 address
# which is the 2nd address derived from test mnemonic "test test test test test test test test test test test junk".
ADMIN_PRIVATE_KEY="0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d"

# Collateral token address (used in UbiquityPoolFacet, allows users to mint/redeem Dollars in exchange for collateral token).
# By default set to LUSD address in ethereum mainnet.
# - mainnet/anvil(forked from mainnet): 0x5f98805A4E8be255a32880FDeC7F6728C6568bA0 (LUSD)
# - testnet: 0x3e622317f8C93f7328350cF0B56d9eD4C620C5d6 (DAI)
# NOTICE: LUSD token is not deployed to sepolia testnet so we use DAI instead which is deployed to testnet
COLLATERAL_TOKEN_ADDRESS="0x5f98805A4E8be255a32880FDeC7F6728C6568bA0"

# Collateral token price feed address from chainlink.
# By default set to LUSD/USD price feed deployed on ethereum mainnet.
# - mainnet: uses already deployed LUSD/USD chainlink price feed
# - testnet/anvil: deploys LUSD/USD chainlink price feed from scratch
COLLATERAL_TOKEN_CHAINLINK_PRICE_FEED_ADDRESS="0x3D7aE7E594f2f2091Ad8798313450130d0Aba3a0"

# Curve metapool address (Dollar-3CRVLP).
# By default set to the old Dollar-3CRV metapool which is about to be redeployed when
# new Dollar token is deployed.
# - mainnet: uses old Dollar-3CRVLP address
# - testnet/anvil: deploys metapool from scratch
CURVE_DOLLAR_METAPOOL_ADDRESS="0x20955CB69Ae1515962177D164dfC9522feef567E"

# Owner private key (grants access to updating Diamond facets and setting TWAP oracle address).
# By default set to the private key from the 0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266 address
# which is the 1st address derived from test mnemonic "test test test test test test test test test test test junk".
OWNER_PRIVATE_KEY="0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80"

# RPC URL (used in contract migrations)
# - anvil: http://127.0.0.1:8545
# - testnet: https://ethereum-sepolia.publicnode.com
# - mainnet: https://eth.ubq.fi/v1/mainnet 
RPC_URL="http://127.0.0.1:8545"

# 3CRV LP token address (which you get if you deposit to Curve's TriPool (DAI/USDC/USDT)).
# By default set to 3CRV LP token address from mainnet.
# - mainet: uses values set in TOKEN_3CRV_ADDRESS
# - testnet/anvil: deploys 3CRV LP token from scratch
TOKEN_3CRV_ADDRESS="0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490"

We provide an .env.example file pre-set with recommend testing environment variables but you are free to modify or experiment with different values on your local branch.

Then in two separate terminals run the following commands:

# starts the anvil forked mainnet/testnet network (depends on your .env config)
yarn workspace @ubiquity/contracts start:anvil

# Optional
yarn start:anvil # same as above but shorter

# deploys the contracts to the anvil testnet or your desired network

yarn workspace @ubiquity/contracts deploy:development

# Optional
yarn deploy:development # same as above

If successful it will output the accounts generated from the test mnemonic (test test test test test test test test test test test junk) and the port it's listening on.

Wiki

We have a Wiki! feel free to browse it as there is a lot of useful information about the whole repo

Yarn Workspaces

The repo has been built as a yarn workspace monorepo.

<root>
├── packages
│   ├── contracts: Smart contracts for Ubiquity Dollar and UbiquiStick
│   ├── dapp: User interface

Codebase Diagram

Interactive Version

Smart Contracts

User Interface

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Sine stabilitate nihil habemus.