Solidity implementation of Sandclock's vaults, strategies, and peripheral contracts.
Main contract that holds deposits made in an underlying ERC20 token, and communicates with a strategy to generate yield for those deposits.
Both principal and yield can be distributed to other beneficiaries (e.g.: as donations), who then are entitled to claim their principal/yield after the initial lock period.
Interface for a strategy. Strategies are attached to vaults, in a 1-1
relationship, and receive a share of their underlying balance (defined by
Vault's investPct percentage), and interfaces with yield-generating services
to produce yield on behalf of the vault.
Currently implemented strategies are:
- AnchorUSTStrategy: Requires the underlying to be
UST, and invests it via EthAnchor - AnchorNonUSTStrategy: Takes an ERC20 underlying, converts it to UST, and then pipes it to EthAnchor. The underlying is converted using Curve, so a corresponding pool must exist.
The following strategies are used on ropsten testnet, since testnet does not have chainlink feed and curve to swap UST.
- TestAnchorUSTStrategy: Requires the underlying to be
UST, and invests it via EthAnchor - TestAnchorNonUSTStrategy: Takes an ERC20 underlying, converts it to UST, and then pipes it to EthAnchor. The underlying is converted using Uniswap, so a corresponding pool must exist.
The deployment setup of subgraph is documented in bin/reset-docker (see
section below, about the Docker dev setup)
Run docker-compose up to get a full test environment with:
- a ganache node with contracts & fixtures deployed, reachable at
http://localhost:8545 - a subgraph instance, with GraphiQL at
http://localhost:8000
If you're making changes to contracts and/or deployment setup, you'll need to
re-deploy the contracts, as well as reset the indexed data from subgraph.
A helper script, bin/reset-docker is provided which should take care of all
the steps.
| Name | Contract | Address |
|---|---|---|
| USTVault | Vault | 0xa8E0068f7054Bfc4257777865d6C15A256419B84 |
| USTStrategy | TestAnchorUSTStrategy | 0x394480300a35558338d32bBE7263d447BA0d409E |
| USDTVault | Vault | 0x02CBBDEe9fB4DBBa46802Dff1669a2D416a8e835 |
| USDTStrategy | TestAnchorNonUSTStrategy | 0x7cb05951DeeC3056641Aef24B480c09e7F488CAB |
| USDCVault | Vault | 0x509FeA92502d559CE6D50CD7a5e91EF0EE6c7074 |
| USDCStrategy | TestAnchorNonUSTStrategy | 0x1A2C932AE7f9A7ad0CB3A9896AbF4E59460B0e76 |
| DAIVault | Vault | 0x2CcC7Ee614212a944e1F034E96A406764EDb675A |
| DAIStrategy | TestAnchorNonUSTStrategy | 0xd953964D803c1a522a819Ac07045EfD9B3fAeb12 |