@lifi/widget/src/hooks/useToken.ts

LI.FI Widget for cross-chain bridging and swapping. It will drive your multi-chain strategy and attract new users from everywhere.

import { useMemo } from 'react'
import { useTokenSearch } from './useTokenSearch.js'
import { useTokens } from './useTokens.js'

export const useToken = (chainId?: number, tokenAddress?: string) => {
  const { tokens, isLoading } = useTokens(chainId)

  const token = useMemo(() => {
    const token = tokens?.find(
      (token) => token.address === tokenAddress && token.chainId === chainId
    )
    return token
  }, [chainId, tokenAddress, tokens])

  const tokenSearchEnabled = !isLoading && !token
  const { token: searchedToken, isLoading: isSearchedTokenLoading } =
    useTokenSearch(chainId, tokenAddress, tokenSearchEnabled)

  return {
    token: token ?? searchedToken,
    isLoading: isLoading || (tokenSearchEnabled && isSearchedTokenLoading),
  }
}