fetchOnchainSince.ts

fetchOnchainSince.ts

import { Alchemy, AssetTransfersCategory } from 'alchemy-sdk'
import { ethers } from 'ethers'
import { format } from 'date-fns'
import { fetchTransaction } from 'shared/lib/wagmi-core'
import { FirstTransaction } from './types'
import 'shared/config/wagmi/server'
import { isMainnet } from 'shared/utils'

export async function fetchOnchainSince(
  address: string,
  alchemy: Alchemy
): Promise<FirstTransaction> {
  const provider = new ethers.providers.AlchemyProvider(
    // TODO: Revisit the need to instantiate a new AlchemyProvider here
    isMainnet ? 1 : 5,
    process.env.PROFILES_ALCHEMY_KEY
  )

  try {
    const data = await alchemy.core.getAssetTransfers({
      fromBlock: '0x0',
      fromAddress: address as string,
      category: [
        AssetTransfersCategory.ERC721,
        AssetTransfersCategory.ERC1155,
        AssetTransfersCategory.ERC20,
        AssetTransfersCategory.INTERNAL,
        AssetTransfersCategory.EXTERNAL,
      ],
    })

    const firstTx = data?.transfers[0] || null

    const transaction = await fetchTransaction({
      hash: firstTx?.hash as `0x${string}`,
    })

    const block = await provider.getBlock(transaction?.blockHash as `0x${string}`)
    const date = format(new Date(block?.timestamp * 1000), 'MMM dd, yyyy')

    return {
      transactionHash: transaction?.hash || null,
      date: date || null,
    }
  } catch (err) {
    console.error(err)
    return {
      transactionHash: null,
      date: null,
    }
  }
}