Axial Aggregator

Axial Aggregator is a fork of YY Aggregator and shares the same architecture.

Dex aggregator for Avalanche. Use at your own risk.

Overview

The Avalanche C-Chain is saturated with 10+ exchanges competing ~200M of liquidity. This creates the following issues for traders:

• Split liquidity: Traders are more likely to get affected by price impact and negative slippage since liquidity is split across many exchanges.
• Disconnected assets: Traders need to approve and swap on multiple platforms to swap between certain assets in the Avalanche ecosystem.
• No simple way to determine best price for swap: With all the options there is no clear way of knowing which exchange will offer the best price for a particular trade.

How it works

Axial Aggregator solves these problems by finding and executing the most profitable trades for users. The Axial Aggregator works by finding the best path between two tokens using Axial pools, if a path is not found non Axial pools will be used.

• Multi-path trades (e.g. Pangolin > Gondola > Zero)
• Gas-cost considerations
• Easy to build on top of

Mainnet Deployments and Supported Platforms

Aggregator

AxialAggregator is the user-facing interface to check prices and make trades.

Name	Address
AxialAggregator	0x05F2F176b491ec11555cbE45B99748F999E13933

Query

Query AxialAggregator for the best trade execution.

Parameters

• findBestPathParams[Array]: Array of parameters used for querying aggregator
  • amountIn[BigNumber]: Amount of tokens being sold
  • tokenIn[String]: ERC20 token being sold (pass WAVAX address for AVAX)
  • tokenOut[String]: ERC20 token being bought (pass WAVAX address for AVAX)
  • steps[BigNumber]: Number of steps within which best path will be searched (max is 4)
  • gasPrice[BigNumber]: Gas price in gwei (should be 225 GWEI now, but is planned be dynamic in the future)

findBestPath

aggregator.findBestPath(findBestPathParams)

Swap

Swap AxialAggregator to execute a trade.

Parameters

• trade[Array]: Array of parameters used for swapping
  • amountIn[BigNumber]: Amount of tokens being sold
  • amountOut[BigNumber]: Minimum amount of tokens bought
  • path[Array]: Tokens being traded (in respective order)
  • adapters[Array]: Adapters through which tokens will be traded (in respective order)
• to[String]: Address where output tokens should be sent to
• fee[BigNumber]: Optional fee in bps taken before the trades
• useInternalRouter[bool]: Flag to determine whether or not internal router should be used

swapNoSplit

aggregator.swap(trade, to, fee, useInternalRouter)

Routers

AxialRouters encapsulate the logic required to query groups of adapters for the best price & allow swaps to be executed. Axial Aggregator has two routers, one for Axial owned pools and another for external pools

Name	Address
AxialRouter(Internal)	0x08c28A3670f5821F6B2D763437816b67010f53D4
AxialRouter(External)	0x547730f642913E50ad8B2Db2dE9F3479E8015BC1

Adapters

Adapters act as a common interface for AxialRouter to interact with external contracts.

Adapters must offer methods: query and swap.

Name	Address
BaguetteYakAdapterV0	0x5BaCF41D5D6B16183c2B980BcE0FbbE5ea125d2F
BridgeMigrationAdapterV0	0xd311F964Dd5bb5ecBd971592E845b0fb74c98b39
BytesManipulationV0	0xdd892a0b5Bcfd435489e31D8e2ec9C9B83f85977
CanaryYakAdapterV0	0x2BC16C1D9A5E6af362277ED424130cC6b2DDe2D9
ComplusAdapterV0	0x273FcA9cd4C4873EFC303b0b61b5E5CB35CD9A70
ElkYakAdapterV0	0xb2e51D2E2B85DbbE8C758C753b5BdA3f86Af05E4
GondolaUSDTeDAIeYakAdapterV0	0xA5e0B490be8A2f8281e09d5920953c65e803a1DC
GondolaUSDTeTSDAdapterV0	0x4884E64D9Ae8e00e9Da80f0B7791c998ac8828B7
GondolaUSDTeUSDCeAdapterV0	0x2296706d53e6522942E8714Bdbc2e50625C5d4D4
GondolaYAKmYAKAdapterV0	0x10EF2400d1a7f64017e80669B218f30ca9816e22
LydiaYakAdapterV0	0x1276350e5855B2BCD089722a678C7D16f3ab5923
MiniYakAdapterV0	0xC3BEe4623A7aE76Ca0805078e98069DEbF79E826
OliveYakAdapterV0	0x6E73F353e4AE3E5005daaD619F22D7C7B790c4f3
PandaYakAdapterV0	0x4E5a8D1EB5250c766AD55eE18314a76Fcb92A867
PangolinYakAdapterV0	0x3614657EDc3cb90BA420E5f4F61679777e4974E3
PartyswapAdapterV0	0xFE6BB940bE3F8e42ece2382EBb0A1Ea21eb1420d
SnobF3YakAdapterV0	0x592E3D359E4A8Ed5f08f38806B1b7f70AA3DB4F2
SnobS3YakAdapterV0	0x87E6989A7AB5C707608Fd6773Fe32413871F4C8e
SnobS4YakAdapterV0	0x599610cf20379B5D21A4A3Ea84CB76E0F2a5f70f
SushiYakAdapterV0	0x3f314530a4964acCA1f20dad2D35275C23Ed7F5d
SynapseAdapterV0	0x364FD64a98bD60aA798Ea8c61bb30d404102E900
TraderJoeYakAdapterV0	0xDB66686Ac8bEA67400CF9E5DD6c8849575B90148
AxialRouterV0	0xC4729E56b831d74bBc18797e0e17A295fA77488c
YetiYakAdapterV0	0x9a76D67e67aE285856846C2Fa080adEcE60CfC9A
ZeroYakAdapterV0	0x0EF5922f909374ccd7841a81F44ab109648b7ba5

Local Development and testing

Install Dependencies

npm i -D

Set Environmental Variables

cp .env.sample > .env

• AVALANCHE_FORK_RPC is Avalanche C-Chain RPC provider that will be used for the tests [ testing ]
• AVALANCHE_DEPLOY_RPC is Avalanche C-Chain RPC provider that will be used deployment [ deployment ]
• PK_DEPLOYER is private-key for the account that will deploy contracts [ deployment ]

Run Tests

npx hardhat test

Deployment

npx hardhat deploy --network {your network}

Audits and Security

This project is in alpha stage and is unaudited. Use at your own risk. Report bugs to Telegram admins

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Project is licensed under GPL-3, although some parts of it might be less restrictive. Copyright© 2021 Yield Yak