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Anchor Money Market Contracts

A Rust and CosmWasm implementation of the Anchor Protocol money market on the Terra blockchain.

You can find information about the architecture, usage, and function of the smart contracts in the documentation.

Dependencies

Money Market has dependencies on Anchor Token Contracts and bAsset Contracts.

Contracts

Contract Reference Description
overseer doc Manages money market overalls, stores borrower information
market doc Handles Terra stablecoin deposits and borrows, ANC distribution to borrowers
custody_bluna doc Handles bLuna collateral deposits and withdrawals
custody_beth doc Handles bEth collateral deposits and withdrawals
interest_model doc Calculates the current borrow interest rate based on the market situation
distribution_model doc Calculates the borrower ANC emission rate based on the previous emission rate
oracle doc Provides a price feed for bAsset collaterals
liquidation doc OTC exchange contract for bAsset collateral liquidations

Development

Environment Setup

  • Rust v1.44.1+
  • wasm32-unknown-unknown target
  • Docker
  1. Install rustup via https://rustup.rs/

  2. Run the following:

rustup default stable
rustup target add wasm32-unknown-unknown
  1. Make sure Docker is installed.

Unit / Integration Tests

Each contract contains Rust unit and integration tests embedded within the contract source directories. You can run:

cargo unit-test
cargo integration-test

Compiling

After making sure tests pass, you can compile each contract with the following:

RUSTFLAGS='-C link-arg=-s' cargo wasm
cp ../../target/wasm32-unknown-unknown/release/cw1_subkeys.wasm .
ls -l cw1_subkeys.wasm
sha256sum cw1_subkeys.wasm

Production

For production builds, run the following:

docker run --rm -v "$(pwd)":/code \
  --mount type=volume,source="$(basename "$(pwd)")_cache",target=/code/target \
  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
  cosmwasm/workspace-optimizer:0.11.5

This performs several optimizations which can significantly reduce the final size of the contract binaries, which will be available inside the artifacts/ directory.

License

This repository is licensed under the Apache 2.0 license. See LICENSE for full disclosure.

© 2021 Anchor Protocol.

money-market-contracts's People

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money-market-contracts's Issues

[FEATURE] Contract address Problem

  1. I cloned the money market contracts and found one problem. (cloned contracts address: terra15dzu8daqh5shdda6w79vl4hkw73fzrhzfhr7fe)
    Once I deposit the UST to my own cloned money market contracts, then this contract deposits 100 Token from terra1yemu0kt0sgkpa8gghr8paqxdeup0ucr430gph0.
    https://finder.terra.money/testnet/address/terra1yemu0kt0sgkpa8gghr8paqxdeup0ucr430gph0
    image

I'd like to know this contract(terra1yemu0kt0sgkpa8gghr8paqxdeup0ucr430gph0) is from where?

the above image is from the anchor money market contract.
image

  • on the original money market contract:
    once I deposit 100USD, mint 87aUST.
  • on the cloned money market contract:
    once I deposit 100USD, mint 100Token of terra1yemu0kt0sgkpa8gghr8paqxdeup0ucr430gph0.

my wallet address: terra14g430dz4gnv3g4w449fadcj22cvapcj860nsz2
my cloned money market contract address: terra15dzu8daqh5shdda6w79vl4hkw73fzrhzfhr7fe

Thank you.

Anchor Money Market on Bombay

Saw that you guys are hard at work with the contracts, great job! Can see that many things are still in progress.

We are thinking of doing some integration testing with Anchor money market. Was wondering is there already a deployed version on bombay-10? Will the contract be the same address as the one mentioned on your docs?

[BUG] Initate Instance fail

Describe the bug
Initate Instance fail
I got a fail on init instance of the anchor money market contracts.
To Reproduce
id: 18465
{
"owner_addr": "terra1tt3yrvuc7aq4lnyl0rykz97vvz8j6jhrv6qa99",
"stable_denom": "uusd",
"aterra_code_id": 5,
"anc_emission_rate": "0.05",
"max_borrow_factor": "0.95"
}
and 1 UST to deposit.

Context & versions
the latest code
image

(if applicable) suggested solution

[Bug] Overflow in market contract

Problem Definition

In market contract, we keep total liabilities and total reserves as Decimal to keep more accurate interest information.
It causes the arithmetic overflow problem when we deposit huge stable amount.

Proposal

Use Decimal256!

Outdated moneymarket rust crate

Using moneymarket = "0.1.0" rust crates various structs differ from deployed Anchor contract.

https://docs.anchorprotocol.com/smart-contracts/money-market/market#configresponse

in rust crate

  #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
  pub struct ConfigResponse {
      pub owner_addr: HumanAddr,
      pub aterra_contract: HumanAddr,
      pub interest_model: HumanAddr,
      pub distribution_model: HumanAddr,
      pub overseer_contract: HumanAddr,
      pub collector_contract: HumanAddr,
      pub distributor_contract: HumanAddr,
      pub stable_denom: String,
      pub reserve_factor: Decimal256,
      pub max_borrow_factor: Decimal256,
  }

Market Contract's StateResponse also differs

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