simulateContract
Action for simulating/validating a contract interaction.
Import
import { simulateContract } from '@wagmi/core'
Usage
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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
import { type SimulateContractParameters } from '@wagmi/core'
abi
Abi
The contract's ABI. Check out the TypeScript docs for how to set up ABIs for maximum type inference and safety.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
accessList: [{
address: '0x1',
storageKeys: ['0x1'],
}],
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
account
Address | Account | undefined
Account to use when signing data. Throws if account is not found on connector
.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
account: '0xd2135CfB216b74109775236E36d4b433F1DF507B',
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
address
Address
The contract's address.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
args
readonly unknown[] | undefined
- Arguments to pass when calling the contract.
- Inferred from
abi
andfunctionName
.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
blockNumber
bigint | undefined
Block number to simulate against.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
blockNumber: 17829139n,
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
blockTag
'latest' | 'earliest' | 'pending' | 'safe' | 'finalized' | undefined
Block tag to simulate against.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
blockTag: 'safe',
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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 validate against before sending transaction.
import { simulateContract } from '@wagmi/core'
import { mainnet } from 'wagmi/chains'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
chainId: mainnet.id,
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
connector
Connector | undefined
Connector to simulate transaction with.
import { getAccount, simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const { connector } = getAccount(config)
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
connector,
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
dataSuffix
`0x${string}` | undefined
Data to append to the end of the calldata. Useful for adding a "domain" tag.
import { simulateContract } from '@wagmi/core'
import { parseGwei } from 'viem'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
dataSuffix: '0xdeadbeef',
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
functionName
string
- Function to call on the contract.
- Inferred from
abi
.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'approve',
args: ['0xA0Cf798816D4b9b9866b5330EEa46a18382f251e', 123n]
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
gas
bigint | undefined
Gas provided for transaction execution.
import { simulateContract } from '@wagmi/core'
import { parseGwei } from 'viem'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
gas: parseGwei('20'),
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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.
import { simulateContract } from '@wagmi/core'
import { parseGwei } from 'viem'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
gasPrice: parseGwei('20'),
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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.
import { simulateContract } from '@wagmi/core'
import { parseGwei } from 'viem'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
maxFeePerGas: parseGwei('20'),
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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.
import { simulateContract } from '@wagmi/core'
import { parseGwei } from 'viem'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
maxFeePerGas: parseGwei('20'),
maxPriorityFeePerGas: parseGwei('2'),
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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
Unique number identifying this transaction.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
nonce: 123,
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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(),
},
})
type
'legacy' | 'eip1559' | 'eip2930' | undefined
Optional transaction request type to narrow parameters.
import { simulateContract } from '@wagmi/core'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
type: 'eip1559',
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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
Value in wei sent with this transaction.
import { simulateContract } from '@wagmi/core'
import { parseEther } from 'viem'
import { abi } from './abi'
import { config } from './config'
const result = await simulateContract(config, {
abi,
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
functionName: 'transferFrom',
args: [
'0xd2135CfB216b74109775236E36d4b433F1DF507B',
'0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
123n,
],
value: parseEther('0.01'),
})
export const abi = [
{
type: 'function',
name: 'approve',
stateMutability: 'nonpayable',
inputs: [
{ name: 'spender', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
{
type: 'function',
name: 'transferFrom',
stateMutability: 'nonpayable',
inputs: [
{ name: 'sender', type: 'address' },
{ name: 'recipient', type: 'address' },
{ name: 'amount', type: 'uint256' },
],
outputs: [{ type: 'bool' }],
},
] as const
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
import { type SimulateContractReturnType } from '@wagmi/core'
The simulation result and write request.
request
Write request that includes parameters.
response
unknown
- Result of contract simulation.
- Inferred from
abi
,functionName
, andargs
.
Type Inference
With abi
setup correctly, TypeScript will infer the correct types for functionName
, args
, and value
. See the Wagmi TypeScript docs for more information.
Error
import { type SimulateContractErrorType } from '@wagmi/core'
TanStack Query
import {
type SimulateContractData,
type SimulateContractOptions,
type SimulateContractQueryFnData,
type SimulateContractQueryKey,
simulateContractQueryKey,
simulateContractQueryOptions,
} from '@wagmi/core/query'