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sendCalls

Requests for the wallet to sign and broadcast a batch of calls (transactions) to the network.

Read more.

Usage

example.ts
import { parseEther } from 'viem'
import { account, walletClient } from './config'
 
const id = await walletClient.sendCalls({ 
  account,
  calls: [
    {
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
      value: parseEther('1')
    },
    {
      data: '0xdeadbeef',
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
})

Notes:

  • account and chain are top level properties as all calls should be sent by the same account and chain.
  • Properties of calls items are only those shared by all transaction types (e.g. data, to, value). The Wallet should handle other required properties like gas & fees.
  • Read wallet_sendCalls on EIP-5792.

Account Hoisting

If you do not wish to pass an account to every sendCalls, you can also hoist the Account on the Wallet Client (see config.ts).

Learn more.

example.ts
import { walletClient } from './config'
 
const id = await walletClient.sendCalls({ 
  calls: [
    {
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
      value: parseEther('1')
    },
    {
      data: '0xdeadbeef',
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
})

Returns

string

The identifier can be any arbitrary string. The only requirement is that for a given session, consumers should be able to call getCallsStatus with this identifier to retreive a batch call status and call receipts.

Parameters

account

  • Type: Account | Address

The Account to sign & broadcast the call from.

Accepts a JSON-RPC Account.

import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266', 
  calls: [
    {
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
      value: parseEther('1')
    },
    {
      data: '0xdeadbeef',
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
})

chain

  • Type: Chain
  • Default: walletClient.chain

The target chain to broadcast the calls.

import { mainnet } from 'viem/chains'
import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  chain: mainnet, 
  calls: [
    {
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
      value: parseEther('1')
    },
    {
      data: '0xdeadbeef',
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
})

calls

  • Type: Call[]

An array of calls to be signed and broadcasted.

import { mainnet } from 'viem/chains'
import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  chain: mainnet,
  calls: [ 
    { 
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8', 
      value: parseEther('1') 
    }, 
    { 
      data: '0xdeadbeef', 
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC', 
    }, 
  ], 
})

calls.data

  • Type: Hex

Calldata to broadcast (typically a contract function selector with encoded arguments, or contract deployment bytecode).

import { mainnet } from 'viem/chains'
import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  chain: mainnet,
  calls: [ 
    { 
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8', 
      value: parseEther('1') 
    }, 
    { 
      data: '0xdeadbeef', 
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
})

calls.to

  • Type: Address

Recipient address of the call.

import { mainnet } from 'viem/chains'
import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  chain: mainnet,
  calls: [ 
    { 
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8', 
      value: parseEther('1') 
    }, 
    { 
      data: '0xdeadbeef', 
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC', 
    },
  ],
})

calls.value

  • Type: Address

Value to send with the call.

import { mainnet } from 'viem/chains'
import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  chain: mainnet,
  calls: [ 
    { 
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8', 
      value: parseEther('1') 
    }, 
    { 
      data: '0xdeadbeef', 
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
})

capabilities

  • Type: WalletCapabilities

Capability metadata for the calls (e.g. specifying a paymaster).

import { walletClient } from './config'
 
const id = await walletClient.sendCalls({
  calls: [
    {
      to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
      value: parseEther('1')
    },
    {
      data: '0xdeadbeef',
      to: '0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC',
    },
  ],
  capabilities: { 
    paymasterService: { 
      url: 'https://...'
    } 
  } 
})