Installation

Seismic Viem is powered by viem. To use it, install both viem and seismic-viem:

npm

npm i viem seismic-viem

Quick Start

1. Set up a client

import { createShieldedWalletClient, seismicDevnet1 } from 'seismic-viem'
import { http } from 'viem'
import { generatePrivateKey, privateKeyToAccount } from 'viem/accounts'
 
const account = privateKeyToAccount(generatePrivateKey())
 

const wallet = await createShieldedWalletClient({
  chain: seismicDevnet1,
  transport: http(),
  account,
})

2. Call Actions

import { parseEther } from 'viem'
 
const tx = wallet.sendTransaction({
  to: '0x1234567890123456789012345678901234567890',
  value: parseEther('0.1'),
})

3. Create a shielded contract instance

You can create a Shielded Contract Instance with the getShieldedContract function by passing in a ABI, address, and Shielded Public and/or Shielded Wallet Client. Once created, you can call contract methods, fetch for events, listen to events, etc.

example.ts

import { getShieldedContract } from 'seismic-viem'
 
import { tokenAbi } from './abi'
import { publicClient, walletClient } from './client'
 
const contract = getShieldedContract({
  address: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2',
  abi: tokenAbi,
  // 1a. Insert a single client
  client: walletClient,
  // 1b. Or public and/or wallet clients
  client: { public: publicClient, wallet: walletClient },
})
 
const amount = parseUnits('0.1', 18)
const receiver = '0x1234567890123456789012345678901234567890'
 
// 2. Make a shielded contract write
const txHash = await contract.write.transfer([receiver, amount])
console.log(`Send tx: ${txHash}`)