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https://app.increment.fi/swap

License: MIT License

JavaScript 12.94% Cadence 87.06%
amm cadence defi dex flow swap web3 fungible-tokens tokens

swap's Introduction

💱 Swap

A dual-mode decentralized exchange (DEX) on Flow blockchain supporting both volatile pairs (adopting Uniswap-V2 curve, suitable for uncorrelated assets like Flow/USDC) and pegged pairs (adopting Solidly-Stableswap curve, suitable for correlated assets like USDC/FUSD, Flow/stFlow, et al.).

It allows users to create arbitrary trading pairs between fungible tokens in a permissionless way, including basic functionalities like CreatePair, AddLiquidity, RemoveLiquidity, Swap, TWAP-Oracle, Flashloan, etc.

  • It adopts the factory pattern that each unique trading pair is deployed using the SwapPair template file, with a factory contract storing all deployed pairs.

  • On-chain time-weighted average price oracle of each of the trading pair is supported by snapshoting cumulative data on the first call of any block. Developers can choose different window size to support different TWAP data.

  • The trading fee is set to 0.3% for volatile pairs and 0.04% for pegged pairs by default. All of the trading fees goes to liquidity providers (LP) initially. However, there's a switch that factory admin can opt to turn on to earn 1/6 of the trading fees.

Documentation

Unittest

  • npm run test

Security

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