Ethers

Ethers version of the connect sdk

Install​

npm i @cometh/connect-sdk

Init Wallet

import {
  ComethWallet,
  ConnectAdaptor,
  SupportedNetworks
} from '@cometh/connect-sdk'

const walletAdaptor = new ConnectAdaptor({
  chainId: YOUR_CHAIN_ID,
  apiKey: API_KEY
})

const wallet = new ComethWallet({
  authAdapter: walletAdaptor,
  apiKey: API_KEY,
  rpcUrl: RPC_URL
})

Wallet methods

• Create/Connect a Wallet

await wallet.connect()

// connect to existing wallet
await wallet.connect(walletAddress)

• Get Address

wallet.getAddress()

• Send transaction

import {
  ComethWallet,
  ConnectAdaptor,
  SupportedNetworks
} from '@cometh/connect-sdk'

const walletAdaptor = new ConnectAdaptor({
  chainId: YOUR_CHAIN_ID,
  apiKey: API_KEY
})

const wallet = new ComethWallet({
  authAdapter: walletAdaptor,
  apiKey: API_KEY,
  rpcUrl: RPC_URL
})

const provider = new ComethProvider(wallet)

const txParams = { to: DESTINATION, value: VALUE, data: DATA }

const tx = await wallet.sendTransaction(txParams)
const txPending = await provider.getTransaction(tx.safeTxHash); 
const txReceipt = await txPending.wait();

• Send Batch transactions

const provider = new ComethProvider(wallet)

const txParams = [
  { to: DESTINATION, value: VALUE, data: DATA },
  { to: DESTINATION, value: VALUE, data: DATA }
]

const tx = await wallet.sendBatchTransactions(txParams)
const txPending = await provider.getTransaction(tx.safeTxHash); 
const txReceipt = await txPending.wait();

• Sign Message

const signature = await wallet.signMessage('hello')

Interact with ethers contract interface

import {
  ComethWallet,
  ConnectAdaptor,
  ComethProvider,
  SupportedNetworks
} from '@cometh/connect-sdk'

const walletAdaptor = new ConnectAdaptor({
  chainId: YOUR_CHAIN_ID,
  apiKey: API_KEY,
  passKeyName
})

const wallet = new ComethWallet({
  authAdapter: walletAdaptor,
  apiKey: API_KEY,
  rpcUrl: RPC_URL
})

const provider = new ComethProvider(wallet)

const counterContract = new ethers.Contract(
  CONTRACT_ADDRESS,
  counterContractAbi,
  provider.getSigner()
)

const tx = await counterContract.count()
const txReceipt = await tx.wait()

Web3Onboard connector

import {
  ConnectAdaptor,
  SupportedNetworks,
  ConnectOnboardConnector
} from '@cometh/connect-sdk'
import injectedModule from '@web3-onboard/injected-wallets'
import Onboard from '@web3-onboard/core'

const walletAdaptor = new ConnectAdaptor({
  chainId: YOUR_CHAIN_ID,
  apiKey: API_KEY,
  passKeyName
})

const connectOnboardConnector = ConnectOnboardConnector({
  apiKey: API_KEY,
  authAdapter: walletAdaptor,
  rpcUrl: RPC_URL
})

const web3OnboardInstance = Onboard({
  wallets: [injectedModule(), connectOnboardConnector],
  chains: [
    {
      id: ethers.utils.hexlify(DEFAULT_CHAIN_ID),
      token: 'MATIC',
      label: 'Matic Mainnet',
      rpcUrl: 'https://polygon-rpc.com'
    }
  ]
})