code2sys/quipuswap-stable-core

Token2Token DEX for equal-price tokens based on StableSwap algos on top of Tezos

QuipuSwap StableDex core

Contracts of DEX with Curve-like invariant implementation. This contracts allows to exchange tokens with equal price. 💵 -> 💰

Core concept is to provide low slippage swap between stablecoins like uUSD, kUSD, USDtz, etc.

Code Audit

Contract code was audited by Runtime Verification.

Project structure

├./
├── build/                        # (gitignored) builded sources of contracts (*.json files)
├─────── lambdas/                 # (gitignored) builded sources of contract lambdas (*.json files)
├──────────── test/               # (gitignored) builded lambdas for tests (*.json files)
├── contracts/                    # contracts sources directory (*.ligo files)
├─────── main/                    # the contracts to be compiled
├──────────── dex.ligo            # main DEX contract
├──────────── dex_test.ligo       # modified DEX contract for tests
├─────── partials/                # the code parts imported by main contracts
├──────────── admin/              # admin part of DEX contact
├──────────── dex_core/           # core codebase of DEX contact
├──────────── fa2/                # token of FA2 standart sources for DEX contact
├──────────── fa12/               # helpers for interaction with FA12 tokens for DEX contact
├──────────── common_types.ligo   # common types used for interaction with contracts
├──────────── constants.ligo      # constants that used in DEX contract
├──────────── constants_test.ligo # modified constants that used in tests of DEX contract
├──────────── errors.ligo         # errors thrown from DEX contract
├──────────── utils.ligo          # utils for contracts
├── migrations/                   # migrations folder
├─────── NN_xxxx.ts               # migration file with deployment data (storage and initial contract setup)
├── test/                         # test cases
├──────── storage/                # initial storage for contract originations
├──────── lambdas/                # *.json files that contains indexes and names of lambdas to be compiled
├──────── Dex/                    # DEX test codebase
├──────────── API/                # DEX contract base API
├──────── Token/                  # Token (FA12/FA2) contract API
├──────── Dex.test.ts             # main test case file
├── scripts/                      # cli for setup environment, test and deploy contracts
├── .gitignore
├── .eslintrc
├── config.ts                     # configuration file for compile, deploy and test
├── jest.setup.ts                 # setup environment file for jest tests
├── jest.config.ts                # configuration file of jest tests
├── README.md                     # current file
├── package.json
├── yarn.lock
└── tsconfig.json

Requirements

This repository based on Docker and Node.js.

You can download Docker Desktop for your operative system at https://www.docker.com/products/docker-desktop. When download is ready, you can proceed to install it.

Same goes for Node.js, for which we suggest you download the LTS version for your system at https://nodejs.org/.

Suggested but not necessary, you can install Yarn package manager which will enable you to write shorter commands.

Preparation

To start using this contracts, make sure you have all the needed packages to run it. To do so, in your Terminal just type:

npm i

or with yarn

yarn

Cli

Project provides cli interface for compile test and deploy contracts.

With cli you can compile, compile-lambda, start/stop sandbox and migrate (deploy contracts)

Launch npm run cli -- --help or the shorter yarn cli --help to see the full guide.

Compiling

You can compile all contracts and lambdas with one simple command:

npm run compile

or with yarn

yarn compile

Or if you want to compile modified version for tests replace compile with compile-for-test

This commands is shotcut for running yarn cli compile and yarn cli compile-lambda for specified contracts.

Testing

Tests are run by Jest, with a proper setup to write unit tests with Taquito.

You can find tests in the test folder.

Testing is thought to be simulating user interaction with smart contract. This is to ensure that the expected usage of contract produces the expexted storage/operations in the Tezos blockchain.

To easily start a local Sandboxed environment (local Tezos network)

npm run start-sandbox

or, with Yarn

yarn start-sandbox

to easily start a local Sandboxed environment (local Tezos network) which processes blockchain packages much faster than real Tezos network. This makes you able to deploy a separate contract with a determined storage for every single unit test you might want to run.

Then you just need to run

npm run test

or, with Yarn

yarn test

and you'll see your tests being performed. If you want contracts to be compilled and the local sandbox to be started and stopped automatically every test run, please use the yarn compile-n-test command.

Deploy

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Before deployment

Setup storage objects inside migrations. Replace null values with needed and setup other params if needed.

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This repository contains command that allows deploy the contracts to chosen network (from config.ts). To bring it up, just launch this command:

npm run migrate

or, with Yarn

yarn migrate

Pass --network=testnet or --network=mainnet to deploy in the specific network.

Pass --from <number> or --to <number> to deploy only specific migrations, provided at migrations directory.

Pass --key <string> to deploy from specific account. By default this is "Alice" (edsk3QoqBuvdamxouPhin7swCvkQNgq4jP5KZPbwWNnwdZpSpJiEbq) standard private key.

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