Router

The Router class provides a smart order routing system to find optimal trade routes across multiple pools and protocols on the Sui network. It handles routing trades through various liquidity pools to achieve the best possible execution price.

Initialization

Create a Router instance:

const afSdk = new Aftermath("MAINNET");
await afSdk.init(); // initialize provider

const router = afSdk.Router();

Methods

getVolume24hrs()

Retrieves the total trading volume in the last 24 hours.

const volume = await router.getVolume24hrs();
console.log(volume); // Returns a number representing total 24h volume

getSupportedCoins()

Returns an array of supported coins that can be traded through the router.

const supportedCoins = await router.getSupportedCoins();

getCompleteTradeRouteGivenAmountIn()

Creates an optimal route for a trade with a specified input amount.

const route = await router.getCompleteTradeRouteGivenAmountIn({
  coinInType: "0x2::sui::SUI",
  coinOutType: "0x5d4b302506645c37ff133b98c4b50a5ae14841659738d6d733d59d0d217a93bf::coin::COIN",
  coinInAmount: BigInt(10_000_000_000), // Amount of input token
  referrer?: "0x...", // Optional referrer address
  externalFee?: {     // Optional external fee configuration
    recipient: "0x...",
    feePercentage: 0.01 // 1%
  },
  protocolBlacklist?: ["Cetus", "BlueMove"], // Optional protocols to exclude
  // OR
  protocolWhitelist?: ["Aftermath", "Cetus"] // Optional protocols to include
}, abortSignal?);

getCompleteTradeRouteGivenAmountOut()

Creates an optimal route for a trade with a specified output amount.

const route = await router.getCompleteTradeRouteGivenAmountOut({
  coinInType: "0x2::sui::SUI",
  coinOutType: "0x5d4b302506645c37ff133b98c4b50a5ae14841659738d6d733d59d0d217a93bf::coin::COIN",
  coinOutAmount: BigInt(20_000_000), // Desired output amount
  slippage: 0.01, // 1% slippage tolerance
  referrer?: "0x...", // Optional referrer address
  externalFee?: {     // Optional external fee configuration
    recipient: "0x...",
    feePercentage: 0.01 // 1%
  },
  protocolBlacklist?: ["Cetus", "BlueMove"], // Optional protocols to exclude
  // OR
  protocolWhitelist?: ["Aftermath", "Cetus"] // Optional protocols to include
}, abortSignal?);

getTransactionForCompleteTradeRoute()

Generates a transaction for executing a complete trade route.

const transaction = await router.getTransactionForCompleteTradeRoute({
	walletAddress: "0x...", // Trader's address
	completeRoute: routeObject, // Route from getCompleteTradeRoute
	slippage: 0.01, // 1% max slippage
	isSponsoredTx: boolean, // Optional sponsored transaction flag
});

addTransactionForCompleteTradeRoute()

Adds a trade to an existing transaction (swap can be performed before or after any logic within the existing transaction).

const result = await router.addTransactionForCompleteTradeRoute({
	tx: Transaction, // Existing transaction
	completeRoute: route, // Route from getCompleteTradeRoute
	slippage: number, // Slippage tolerance (e.g. 0.01 for 1%)
	walletAddress: string, // Trader's address
	coinInId: TransactionObjectArgument, // Optional coin input ID
});

// Returns: { tx: Transaction, coinOutId: TransactionObjectArgument }

Types

RouterProtocolName

Supported DEX protocols for routing:

type RouterProtocolName =
	| "Aftermath"
	| "BlueMove"
	| "Cetus"
	| "DeepBook"
	| "DeepBookV3"
	| "DoubleUpPump"
	| "FlowX"
	| "FlowXClmm"
	| "HopFun"
	| "Kriya"
	| "KriyaClmm"
	| "Metastable"
	| "MovePump"
	| "Obric"
	| "SuiSwap"
	| "Turbos"
	| "SpringSui"
	| "Bluefin"
	| "TurbosFun";

RouterCompleteTradeRoute

Structure containing the complete trade route information:

interface RouterCompleteTradeRoute {
	routes: RouterTradeRoute[];
	netTradeFeePercentage: number;
	referrer?: string;
	externalFee?: {
		recipient: string;
		feePercentage: number;
	};
	slippage?: number;
	coinIn: {
		type: string;
		amount: bigint;
		tradeFee: bigint;
	};
	coinOut: {
		type: string;
		amount: bigint;
		tradeFee: bigint;
	};
	spotPrice: number;
}

Constants

Router.constants = {
	maxExternalFeePercentage: 0.5, // Maximum allowed external fee (50%)
};

Example Usage

Basic Trading

// Initialize router
const afSdk = new Aftermath("MAINNET");
await afSdk.init();
const router = afSdk.Router();

// Get a trade route
const route = await router.getCompleteTradeRouteGivenAmountIn({
	coinInType: "0x2::sui::SUI",
	coinOutType:
		"0x5d4b302506645c37ff133b98c4b50a5ae14841659738d6d733d59d0d217a93bf::coin::COIN",
	coinInAmount: BigInt(10_000_000_000),
	referrer: "0x...",
});

// Generate transaction for the route
const tx = await router.getTransactionForCompleteTradeRoute({
	walletAddress: "0x...",
	completeRoute: route,
	slippage: 0.01,
});

Advanced Transaction Building

const WALLET_ADDRESS = "0x123";

// Initialize SDK and router
const af = new Aftermath("MAINNET");
await af.init();
const router = af.Router();

// Find first route (SUIP -> SUI)
const completeRoute = await router.getCompleteTradeRouteGivenAmountIn({
	coinInAmount: BigInt("2000000000"),
	coinInType:
		"0xe4239cd951f6c53d9c41e25270d80d31f925ad1655e5ba5b543843d4a66975ee::SUIP::SUIP",
	coinOutType: "0x2::sui::SUI",
});

// Create transaction and add first trade
const tx = new Transaction();
const { tx: newTx, coinOutId } =
	await router.addTransactionForCompleteTradeRoute({
		tx,
		completeRoute,
		slippage: 0.1,
		walletAddress: WALLET_ADDRESS,
	});

// Transfer first trade output
newTx.transferObjects([coinOutId!], WALLET_ADDRESS);

// Find second route (SUI -> SUIP)
const completeRoute2 = await router.getCompleteTradeRouteGivenAmountIn({
	coinInAmount: BigInt("2000000000"),
	coinInType: "0x2::sui::SUI",
	coinOutType:
		"0xe4239cd951f6c53d9c41e25270d80d31f925ad1655e5ba5b543843d4a66975ee::SUIP::SUIP",
});

// Add second trade to same transaction
const { tx: newTx2, coinOutId: coinOutId2 } =
	await router.addTransactionForCompleteTradeRoute({
		tx: newTx,
		completeRoute: completeRoute2,
		slippage: 0.1,
		walletAddress: WALLET_ADDRESS,
	});

// Transfer second trade output
newTx2.transferObjects([coinOutId2!], WALLET_ADDRESS);

// Execute transaction `newTx2`...

Rest API documention can be found here.