Function: sourceToDestTokenAddresses()

sourceToDestTokenAddresses<S>(source: Chain, destChainSelector: bigint, onRamp: string, sourceTokenAmount: S): Promise<S & { destTokenAddress: string; sourcePoolAddress: string; sourceTokenAddress: string; }>

Defined in: requests.ts:458

Map source token to its pool address and destination token address.

Resolves token routing by querying the TokenAdminRegistry and TokenPool to find the corresponding destination chain token.

Type Parameters

Type Parameter
S extends { token: string; }

Parameters

Parameter	Type	Description
source	Chain	Source chain instance
destChainSelector	bigint	Destination chain selector
onRamp	string	OnRamp contract address
sourceTokenAmount	S	Token amount object containing token and amount

Returns

Promise<S & { destTokenAddress: string; sourcePoolAddress: string; sourceTokenAddress: string; }>

Extended token amount with sourcePoolAddress, sourceTokenAddress, and destTokenAddress

Throws

CCIPTokenNotInRegistryError if token is not registered in TokenAdminRegistry

Example

TypeScript

import { sourceToDestTokenAddresses, EVMChain } from '@chainlink/ccip-sdk'

const source = await EVMChain.fromUrl('https://rpc.sepolia.org')
const tokenAmount = await sourceToDestTokenAddresses(
  source,
  destChainSelector,
  '0xOnRamp...',
  { token: '0xLINK...', amount: 1000000000000000000n }
)
console.log(`Pool: ${tokenAmount.sourcePoolAddress}`)
console.log(`Dest token: ${tokenAmount.destTokenAddress}`)