Request a Quote

To initiate a cross-chain transaction, you first need to obtain a quote from the Pathfinder API. The quote requires the following information:

• sourceChainId: The ID of the source blockchain.
• sourceTokenAddress: The address of the token on the source blockchain.
• destinationChainId: The ID of the destination blockchain.
• destinationTokenAddress: The address of the token on the destination blockchain.
• expandedInputAmount: The amount of the token you want to transfer, in its smallest unit (like wei for ETH).

Use the getQuote method of the Pathfinder instance to request a quote:

const quote = await pathfinder.getQuote({
  sourceChainId,
  sourceTokenAddress,
  destinationChainId,
  destinationTokenAddress,
  expandedInputAmount,
});

The getQuote method returns an object containing:

• Fee details
• Estimated amount to be received
• Estimated time of completion and more fields.

Here's an example: Getting a quote for transferring 10 USDT from Fuji to Mumbai:

import { PathFinder, Network } from "@routerprotocol/asset-transfer-sdk-ts";

// initialize a Pathfinder instance
const YOUR_WIDGET_ID = 0; // get your unique sdk id - https://app.routernitro.com/partnerId
const pathfinder = new Pathfinder(Network.Testnet, YOUR_WIDGET_ID);

const main = async () => {
  // getting a quote for 10 USDT from Fuji to Mumbai
  const quote = await pathfinder.getQuote({
    sourceChainId: "43113",
    sourceTokenAddress: "0xb452b513552aa0B57c4b1C9372eFEa78024e5936",
    destinationChainId: "80001",
    destinationTokenAddress: "0x22bAA8b6cdd31a0C5D1035d6e72043f4Ce6aF054",
    expandedInputAmount: "10000000",
  });

  console.log(quote);
};

main();

note

In case you want source / destination token to be native token, then the following value should be used for token address - 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE

info

Important Note: To play around with the API, you can use the Partner ID given in the example above. But for use in any product/protocol, you will be assigned a unique Partner ID. To get your Partner ID, please use the link provided here.