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prepareTransactionRequest ​

Action for preparing a transaction request for signing by populating a nonce, gas limit, fee values, and a transaction type.

Import ​

ts
import { prepareTransactionRequest } from '@wagmi/core'

Usage ​

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Parameters ​

ts
import { type PrepareTransactionRequestParameters } from '@wagmi/core'

account ​

Account | Address | undefined

The Account to send the transaction from.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266', 
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

to ​

`0x${string}` | undefined

The transaction recipient or contract address.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',  
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

accessList ​

AccessList | undefined

The access list.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  accessList: [ 
    {
      address: '0x1',
      storageKeys: ['0x1'],
    },
  ],
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

chainId ​

config['chains'][number]['id'] | undefined

Chain ID to prepare the transaction request for.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { mainnet } from '@wagmi/core/chains'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  chainId: mainnet.id, 
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

data ​

`0x${string}` | undefined

A contract hashed method call with encoded args.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  data: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2', 
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

gasPrice ​

bigint | undefined

The price (in wei) to pay per gas. Only applies to Legacy Transactions.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther, parseGwei } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  gasPrice: parseGwei('20'), 
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

maxFeePerGas ​

bigint | undefined

Total fee per gas (in wei), inclusive of maxPriorityFeePerGas. Only applies to EIP-1559 Transactions.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther, parseGwei } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  maxFeePerGas: parseGwei('20'), 
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

maxPriorityFeePerGas ​

bigint | undefined

Max priority fee per gas (in wei). Only applies to EIP-1559 Transactions.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther, parseGwei } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  maxFeePerGas: parseGwei('20'),
  maxPriorityFeePerGas: parseGwei('2'), 
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

nonce ​

number | undefined

Unique number identifying this transaction.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
  nonce: 5, 
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

parameters ​

("fees" | "gas" | "nonce" | "type")[] | undefined

Parameters to prepare.

For instance, if ["gas", "nonce"] is provided, then only the gas and nonce parameters will be prepared.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  parameters: ['gas', 'nonce'], 
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'),
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

value ​

bigint | undefined

The transaction recipient or contract address.

ts
import { prepareTransactionRequest } from '@wagmi/core'
import { parseEther } from 'viem'
import { config } from './config'

await prepareTransactionRequest(config, {
  account: '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266',
  to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
  value: parseEther('1'), 
})
ts
import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Return Type ​

ts
import { type PrepareTransactionRequestReturnType } from '@wagmi/core'

TransactionRequest

The transaction request.

Error ​

ts
import { type PrepareTransactionRequestErrorType } from '@wagmi/core'

TanStack Query ​

ts
import {
  type prepareTransactionRequestData,
  type prepareTransactionRequestOptions,
  type prepareTransactionRequestQueryFnData,
  type prepareTransactionRequestQueryKey,
  prepareTransactionRequestQueryKey,
  prepareTransactionRequestQueryOptions,
} from '@wagmi/core/query'

Viem ​

Released under the MIT License.

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