How to create a UUPS upgradable proxy contract via viem ?

[baijunjie]

Here's the implementation with Hardhat + Ethers:
Based on Implementation @openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol

const { ethers, upgrades } = require('hardhat')

const args = []
await upgrades.deployProxy(
  await ethers.getContractFactory('<UUPS_CONTRACT>'),
  args,
  {
    initializer: 'initialize',
    kind: 'uups'
  }
)

It seems the core is the getContractFactory function from Ethers.

Is there an alternative to Viem? I couldn't find it in the documentation.

[time-holder]

I've encountered the same problem. I believe that UUPS upgradable contracts are very important, so I've found that Ethers.js is irreplaceable when it comes to deploying contracts. Here is my solution:

import { viem, ethers, upgrades } from 'hardhat'
import { getAddress } from 'viem'
import type { DeployProxyOptions } from '@openzeppelin/hardhat-upgrades/src/utils'

export async function deployProxy (contractName: string, args: unknown[], options: DeployProxyOptions) {
  const contract = await upgrades.deployProxy(
    await ethers.getContractFactory(contractName),
    args,
    options
  )
  return viem.getContractAt(
    contractName,
    getAddress(contract.target as string)
  )
}

export async function upgradeProxy (contractAddress: string, newContractName: string) {
  const patch = await ethers.getContractFactory(newContractName)
  return upgrades.upgradeProxy(contractAddress, patch)
}