EVM Integrations

The EthereumProvider defined in Tomo Connect SDK contains all the necessary functions to interact with EVM chains. Core functions are:

requestAddresses

Implemented eth_requestAccounts

public async requestAddresses()

getAddresses

Implemented eth_accounts

public async getAddresses()

signMessage

Implemented personal_sign

public async signMessage(msg: string, address: string)

signTypedData

Implemented eth_signTypedData_v4

public async signTypedData(address: string, msg: string)

sendTransaction

Implemented eth_sendTransaction

export interface EvmTxParams {
  from: string,
  to: string,
  value: string,
  gasPrice?: string,
  gasLimit?: string,
  maxFeePerGas?: string,
  maxPriorityFeePerGas?: string,
  data?: string,
}

public async sendTransaction(params: EvmTxParams)

sendRawTransaction

Implemented eth_sendRawTransaction

public async sendRawTransaction(signedTx: string) 

swithChain

Implemented wallet_switchEthereumChain

public async swithChain(chainId: string)

recoverMessageAddress

Implemented personal_ecRecover

public async recoverMessageAddress(message: string, signature: string)

Also EthereumProvider is a provider compatible with EIP 1193. It can be integrated with third-party libraries like viem, ethers, just like window.ethereum.

// Integrated with viem
const client = createWalletClient({
  chain: mainnet,
  transport: custom(tomoSDK.ethereumProvider)
})