Function approveERC20

Parameters

• __namedParameters: {
      chainId: CHAIN_IDS;
      walletClient: {
          account: undefined | Account;
          batch?: {
              multicall?: boolean | {
                  batchSize?: number;
                  wait?: number;
              };
          };
          cacheTime: number;
          ccipRead?: false | {
              request?: ((parameters) => Promise<`0x${string}`>);
          };
          chain: undefined | Chain;
          key: string;
          name: string;
          pollingInterval: number;
          request: EIP1193RequestFn<WalletRpcSchema>;
          transport: TransportConfig<string, EIP1193RequestFn> & Record<string, any>;
          type: string;
          uid: string;
          addChain: ((args) => Promise<void>);
          deployContract: (<const abi, chainOverride>(args) => Promise<`0x${string}`>);
          getAddresses: (() => Promise<GetAddressesReturnType>);
          getChainId: (() => Promise<number>);
          getPermissions: (() => Promise<GetPermissionsReturnType>);
          prepareTransactionRequest: (<const request, chainOverride, accountOverride>(args) => Promise<{
              [K in string | number | symbol]: (UnionRequiredBy<Extract<(...) & (...) & (...), (...) extends (...)
                  ? (...)
                  : (...)> & {
                  chainId?: (...) | (...);
              }, ParameterTypeToParameters<(...)[(...)] extends readonly (...)[]
                  ? (...)[(...)]
                  : (...) | (...) | (...) | (...) | (...) | (...)>> & (unknown extends request["kzg"]
                  ? {}
                  : Pick<request, "kzg">))[K]
          }>);
          requestAddresses: (() => Promise<RequestAddressesReturnType>);
          requestPermissions: ((args) => Promise<RequestPermissionsReturnType>);
          sendRawTransaction: ((args) => Promise<`0x${string}`>);
          sendTransaction: (<const request, chainOverride>(args) => Promise<`0x${string}`>);
          signMessage: ((args) => Promise<`0x${string}`>);
          signTransaction: (<chainOverride, const request>(args) => Promise<TransactionSerialized<GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | (request["type"] extends undefined | string
              ? Extract<any[any], string>
              : never)>, (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip1559"
              ? `0x02${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip2930"
              ? `0x01${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip4844"
              ? `0x03${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip7702"
              ? `0x04${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "legacy"
              ? TransactionSerializedLegacy
              : never)>>);
          signTypedData: (<const typedData, primaryType>(args) => Promise<`0x${string}`>);
          switchChain: ((args) => Promise<void>);
          watchAsset: ((args) => Promise<boolean>);
          writeContract: (<const abi, functionName, args, chainOverride>(args) => Promise<`0x${string}`>);
          extend: (<const client>(fn) => Client<Transport, undefined | Chain, undefined | Account, WalletRpcSchema, {
              [K in string | number | symbol]: client[K]
          } & WalletActions<undefined | Chain, undefined | Account>>);
      };
      token: `0x${string}`;
      amount?: string;
      options?: DefaultWriteContractOptions;
  }

  • chainId: CHAIN_IDS

  • walletClient: {
        account: undefined | Account;
        batch?: {
            multicall?: boolean | {
                batchSize?: number;
                wait?: number;
            };
        };
        cacheTime: number;
        ccipRead?: false | {
            request?: ((parameters) => Promise<`0x${string}`>);
        };
        chain: undefined | Chain;
        key: string;
        name: string;
        pollingInterval: number;
        request: EIP1193RequestFn<WalletRpcSchema>;
        transport: TransportConfig<string, EIP1193RequestFn> & Record<string, any>;
        type: string;
        uid: string;
        addChain: ((args) => Promise<void>);
        deployContract: (<const abi, chainOverride>(args) => Promise<`0x${string}`>);
        getAddresses: (() => Promise<GetAddressesReturnType>);
        getChainId: (() => Promise<number>);
        getPermissions: (() => Promise<GetPermissionsReturnType>);
        prepareTransactionRequest: (<const request, chainOverride, accountOverride>(args) => Promise<{
            [K in string | number | symbol]: (UnionRequiredBy<Extract<(...) & (...) & (...), (...) extends (...)
                ? (...)
                : (...)> & {
                chainId?: (...) | (...);
            }, ParameterTypeToParameters<(...)[(...)] extends readonly (...)[]
                ? (...)[(...)]
                : (...) | (...) | (...) | (...) | (...) | (...)>> & (unknown extends request["kzg"]
                ? {}
                : Pick<request, "kzg">))[K]
        }>);
        requestAddresses: (() => Promise<RequestAddressesReturnType>);
        requestPermissions: ((args) => Promise<RequestPermissionsReturnType>);
        sendRawTransaction: ((args) => Promise<`0x${string}`>);
        sendTransaction: (<const request, chainOverride>(args) => Promise<`0x${string}`>);
        signMessage: ((args) => Promise<`0x${string}`>);
        signTransaction: (<chainOverride, const request>(args) => Promise<TransactionSerialized<GetTransactionType<request, (request extends LegacyProperties
            ? "legacy"
            : never) | (request extends EIP1559Properties
            ? "eip1559"
            : never) | (request extends EIP2930Properties
            ? "eip2930"
            : never) | (request extends EIP4844Properties
            ? "eip4844"
            : never) | (request extends EIP7702Properties
            ? "eip7702"
            : never) | (request["type"] extends undefined | string
            ? Extract<any[any], string>
            : never)>, (GetTransactionType<request, (request extends LegacyProperties
                ? "legacy"
                : never) | (request extends EIP1559Properties
                ? "eip1559"
                : never) | (request extends EIP2930Properties
                ? "eip2930"
                : never) | (request extends EIP4844Properties
                ? "eip4844"
                : never) | (request extends EIP7702Properties
                ? "eip7702"
                : never) | ((...)[(...)] extends (...) | (...)
                ? Extract<(...), (...)>
                : never)> extends "eip1559"
            ? `0x02${string}`
            : never) | (GetTransactionType<request, (request extends LegacyProperties
                ? "legacy"
                : never) | (request extends EIP1559Properties
                ? "eip1559"
                : never) | (request extends EIP2930Properties
                ? "eip2930"
                : never) | (request extends EIP4844Properties
                ? "eip4844"
                : never) | (request extends EIP7702Properties
                ? "eip7702"
                : never) | ((...)[(...)] extends (...) | (...)
                ? Extract<(...), (...)>
                : never)> extends "eip2930"
            ? `0x01${string}`
            : never) | (GetTransactionType<request, (request extends LegacyProperties
                ? "legacy"
                : never) | (request extends EIP1559Properties
                ? "eip1559"
                : never) | (request extends EIP2930Properties
                ? "eip2930"
                : never) | (request extends EIP4844Properties
                ? "eip4844"
                : never) | (request extends EIP7702Properties
                ? "eip7702"
                : never) | ((...)[(...)] extends (...) | (...)
                ? Extract<(...), (...)>
                : never)> extends "eip4844"
            ? `0x03${string}`
            : never) | (GetTransactionType<request, (request extends LegacyProperties
                ? "legacy"
                : never) | (request extends EIP1559Properties
                ? "eip1559"
                : never) | (request extends EIP2930Properties
                ? "eip2930"
                : never) | (request extends EIP4844Properties
                ? "eip4844"
                : never) | (request extends EIP7702Properties
                ? "eip7702"
                : never) | ((...)[(...)] extends (...) | (...)
                ? Extract<(...), (...)>
                : never)> extends "eip7702"
            ? `0x04${string}`
            : never) | (GetTransactionType<request, (request extends LegacyProperties
                ? "legacy"
                : never) | (request extends EIP1559Properties
                ? "eip1559"
                : never) | (request extends EIP2930Properties
                ? "eip2930"
                : never) | (request extends EIP4844Properties
                ? "eip4844"
                : never) | (request extends EIP7702Properties
                ? "eip7702"
                : never) | ((...)[(...)] extends (...) | (...)
                ? Extract<(...), (...)>
                : never)> extends "legacy"
            ? TransactionSerializedLegacy
            : never)>>);
        signTypedData: (<const typedData, primaryType>(args) => Promise<`0x${string}`>);
        switchChain: ((args) => Promise<void>);
        watchAsset: ((args) => Promise<boolean>);
        writeContract: (<const abi, functionName, args, chainOverride>(args) => Promise<`0x${string}`>);
        extend: (<const client>(fn) => Client<Transport, undefined | Chain, undefined | Account, WalletRpcSchema, {
            [K in string | number | symbol]: client[K]
        } & WalletActions<undefined | Chain, undefined | Account>>);
    }

    • account: undefined | Account

      The Account of the Client.

    • Optional batch?: {
          multicall?: boolean | {
              batchSize?: number;
              wait?: number;
          };
      }

      Flags for batch settings.

      • Optional multicall?: boolean | {
            batchSize?: number;
            wait?: number;
        }

        Toggle to enable eth_call multicall aggregation.

    • cacheTime: number

      Time (in ms) that cached data will remain in memory.

    • Optional ccipRead?: false | {
          request?: ((parameters) => Promise<`0x${string}`>);
      }

      CCIP Read configuration.

    • chain: undefined | Chain

      Chain for the client.

    • key: string

      A key for the client.

    • name: string

      A name for the client.

    • pollingInterval: number

      Frequency (in ms) for polling enabled actions & events. Defaults to 4_000 milliseconds.

    • request: EIP1193RequestFn<WalletRpcSchema>

      Request function wrapped with friendly error handling

    • transport: TransportConfig<string, EIP1193RequestFn> & Record<string, any>

      The RPC transport

    • type: string

      The type of client.

    • uid: string

      A unique ID for the client.

    • addChain: ((args) => Promise<void>)

      Adds an EVM chain to the wallet.

      • Docs: https://viem.sh/docs/actions/wallet/addChain
      • JSON-RPC Methods: eth_addEthereumChain

      Example

      import { createWalletClient, custom } from 'viem'
      import { optimism } from 'viem/chains'
      
      const client = createWalletClient({
        transport: custom(window.ethereum),
      })
      await client.addChain({ chain: optimism })
      Copy

      • • (args): Promise<void>

        • Parameters

          • args: AddChainParameters

            AddChainParameters

          Returns Promise<void>

    • deployContract: (<const abi, chainOverride>(args) => Promise<`0x${string}`>)

      Deploys a contract to the network, given bytecode and constructor arguments.

      • Docs: https://viem.sh/docs/contract/deployContract
      • Examples: https://stackblitz.com/github/wevm/viem/tree/main/examples/contracts_deploying-contracts

      Returns

      The Transaction hash. DeployContractReturnType

      Example

      import { createWalletClient, http } from 'viem'
      import { privateKeyToAccount } from 'viem/accounts'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        account: privateKeyToAccount('0x…'),
        chain: mainnet,
        transport: http(),
      })
      const hash = await client.deployContract({
        abi: [],
        account: '0x…,
        bytecode: '0x608060405260405161083e38038061083e833981016040819052610...',
      })
      Copy

      • • <const abi, chainOverride>(args): Promise<`0x${string}`>

        • Type Parameters

          • const abi extends Abi | readonly unknown[]
          • chainOverride extends undefined | Chain

          Parameters

          • args: DeployContractParameters<abi, undefined | Chain, undefined | Account, chainOverride>

            DeployContractParameters

          Returns Promise<`0x${string}`>

    • getAddresses: (() => Promise<GetAddressesReturnType>)

      Returns a list of account addresses owned by the wallet or client.

      • Docs: https://viem.sh/docs/actions/wallet/getAddresses
      • JSON-RPC Methods: eth_accounts

      Returns

      List of account addresses owned by the wallet or client. GetAddressesReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const accounts = await client.getAddresses()
      Copy

      • • (): Promise<GetAddressesReturnType>

        • Returns Promise<GetAddressesReturnType>

    • getChainId: (() => Promise<number>)

      Returns the chain ID associated with the current network.

      • Docs: https://viem.sh/docs/actions/public/getChainId
      • JSON-RPC Methods: eth_chainId

      Returns

      The current chain ID. GetChainIdReturnType

      Example

      import { createWalletClient, http } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const chainId = await client.getChainId()
      // 1
      Copy

      • • (): Promise<number>

        • Returns Promise<number>

    • getPermissions: (() => Promise<GetPermissionsReturnType>)

      Gets the wallets current permissions.

      • Docs: https://viem.sh/docs/actions/wallet/getPermissions
      • JSON-RPC Methods: wallet_getPermissions

      Returns

      The wallet permissions. GetPermissionsReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const permissions = await client.getPermissions()
      Copy

      • • (): Promise<GetPermissionsReturnType>

        • Returns Promise<GetPermissionsReturnType>

    • prepareTransactionRequest: (<const request, chainOverride, accountOverride>(args) => Promise<{
          [K in string | number | symbol]: (UnionRequiredBy<Extract<(...) & (...) & (...), (...) extends (...)
              ? (...)
              : (...)> & {
              chainId?: (...) | (...);
          }, ParameterTypeToParameters<(...)[(...)] extends readonly (...)[]
              ? (...)[(...)]
              : (...) | (...) | (...) | (...) | (...) | (...)>> & (unknown extends request["kzg"]
              ? {}
              : Pick<request, "kzg">))[K]
      }>)

      Prepares a transaction request for signing.

      • Docs: https://viem.sh/docs/actions/wallet/prepareTransactionRequest

      Returns

      The transaction request. PrepareTransactionRequestReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const request = await client.prepareTransactionRequest({
        account: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
        to: '0x0000000000000000000000000000000000000000',
        value: 1n,
      })
      Copy

      Example

      // Account Hoisting
      import { createWalletClient, http } from 'viem'
      import { privateKeyToAccount } from 'viem/accounts'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        account: privateKeyToAccount('0x…'),
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const request = await client.prepareTransactionRequest({
        to: '0x0000000000000000000000000000000000000000',
        value: 1n,
      })
      Copy

      • • <const request, chainOverride, accountOverride>(args): Promise<{
              [K in string | number | symbol]: (UnionRequiredBy<Extract<(...) & (...) & (...), (...) extends (...)
                  ? (...)
                  : (...)> & {
                  chainId?: (...) | (...);
              }, ParameterTypeToParameters<(...)[(...)] extends readonly (...)[]
                  ? (...)[(...)]
                  : (...) | (...) | (...) | (...) | (...) | (...)>> & (unknown extends request["kzg"]
                  ? {}
                  : Pick<request, "kzg">))[K]
          }>

        • Type Parameters

          • const request extends (Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "legacy";
                value?: bigint;
                gasPrice?: bigint;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: undefined;
                maxPriorityFeePerGas?: undefined;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                accessList: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip2930";
                value?: bigint;
                gasPrice?: bigint;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: undefined;
                maxPriorityFeePerGas?: undefined;
                accessList?: AccessList;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip1559";
                value?: bigint;
                gasPrice?: undefined;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                accessList?: AccessList;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                from?: `0x${string}`;
                data?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                type?: "eip4844";
                value?: bigint;
                to: null | `0x${string}`;
                gasPrice?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                maxFeePerBlobGas: bigint;
                accessList?: AccessList;
                blobs: readonly `0x${string}`[] | readonly Uint8Array[];
                blobVersionedHashes?: readonly `0x${string}`[];
                kzg?: Kzg;
                sidecars?: readonly BlobSidecar<`0x${(...)}`>[];
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip7702";
                value?: bigint;
                gasPrice?: undefined;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                accessList?: AccessList;
                authorizationList?: AuthorizationList<number, boolean>;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
            }, "from">) & {
                kzg?: Kzg;
            } & {
                nonceManager?: NonceManager;
                parameters?: readonly PrepareTransactionRequestParameterType[];
            }
          • chainOverride extends undefined | Chain = undefined
          • accountOverride extends undefined | `0x${string}` | Account = undefined

          Parameters

          • args: PrepareTransactionRequestParameters<undefined | Chain, undefined | Account, chainOverride, accountOverride, request>

            PrepareTransactionRequestParameters

          Returns Promise<{
              [K in string | number | symbol]: (UnionRequiredBy<Extract<(...) & (...) & (...), (...) extends (...)
                  ? (...)
                  : (...)> & {
                  chainId?: (...) | (...);
              }, ParameterTypeToParameters<(...)[(...)] extends readonly (...)[]
                  ? (...)[(...)]
                  : (...) | (...) | (...) | (...) | (...) | (...)>> & (unknown extends request["kzg"]
                  ? {}
                  : Pick<request, "kzg">))[K]
          }>

    • requestAddresses: (() => Promise<RequestAddressesReturnType>)

      Requests a list of accounts managed by a wallet.

      • Docs: https://viem.sh/docs/actions/wallet/requestAddresses
      • JSON-RPC Methods: eth_requestAccounts

      Sends a request to the wallet, asking for permission to access the user's accounts. After the user accepts the request, it will return a list of accounts (addresses).

      This API can be useful for dapps that need to access the user's accounts in order to execute transactions or interact with smart contracts.

      Returns

      List of accounts managed by a wallet RequestAddressesReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const accounts = await client.requestAddresses()
      Copy

      • • (): Promise<RequestAddressesReturnType>

        • Returns Promise<RequestAddressesReturnType>

    • requestPermissions: ((args) => Promise<RequestPermissionsReturnType>)

      Requests permissions for a wallet.

      • Docs: https://viem.sh/docs/actions/wallet/requestPermissions
      • JSON-RPC Methods: wallet_requestPermissions

      Returns

      The wallet permissions. RequestPermissionsReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const permissions = await client.requestPermissions({
        eth_accounts: {}
      })
      Copy

      • • (args): Promise<RequestPermissionsReturnType>

        • Parameters

          • args: {
                eth_accounts: Record<string, any>;
            }

            RequestPermissionsParameters

            • eth_accounts: Record<string, any>

          Returns Promise<RequestPermissionsReturnType>

    • sendRawTransaction: ((args) => Promise<`0x${string}`>)

      Sends a signed transaction to the network

      • Docs: https://viem.sh/docs/actions/wallet/sendRawTransaction
      • JSON-RPC Method: eth_sendRawTransaction

      Returns

      The transaction hash. SendRawTransactionReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      import { sendRawTransaction } from 'viem/wallet'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      
      const hash = await client.sendRawTransaction({
        serializedTransaction: '0x02f850018203118080825208808080c080a04012522854168b27e5dc3d5839bab5e6b39e1a0ffd343901ce1622e3d64b48f1a04e00902ae0502c4728cbf12156290df99c3ed7de85b1dbfe20b5c36931733a33'
      })
      Copy

      • • (args): Promise<`0x${string}`>

        • Parameters

          • args: SendRawTransactionParameters

          Returns Promise<`0x${string}`>

    • sendTransaction: (<const request, chainOverride>(args) => Promise<`0x${string}`>)

      Creates, signs, and sends a new transaction to the network.

      • Docs: https://viem.sh/docs/actions/wallet/sendTransaction
      • Examples: https://stackblitz.com/github/wevm/viem/tree/main/examples/transactions_sending-transactions
      • JSON-RPC Methods:
        • JSON-RPC Accounts: eth_sendTransaction
        • Local Accounts: eth_sendRawTransaction

      Returns

      The Transaction hash. SendTransactionReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const hash = await client.sendTransaction({
        account: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
        to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
        value: 1000000000000000000n,
      })
      Copy

      Example

      // Account Hoisting
      import { createWalletClient, http } from 'viem'
      import { privateKeyToAccount } from 'viem/accounts'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        account: privateKeyToAccount('0x…'),
        chain: mainnet,
        transport: http(),
      })
      const hash = await client.sendTransaction({
        to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
        value: 1000000000000000000n,
      })
      Copy

      • • <const request, chainOverride>(args): Promise<`0x${string}`>

        • Type Parameters

          • const request extends (Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "legacy";
                value?: bigint;
                gasPrice?: bigint;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: undefined;
                maxPriorityFeePerGas?: undefined;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                accessList: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip2930";
                value?: bigint;
                gasPrice?: bigint;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: undefined;
                maxPriorityFeePerGas?: undefined;
                accessList?: AccessList;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip1559";
                value?: bigint;
                gasPrice?: undefined;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                accessList?: AccessList;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                from?: `0x${string}`;
                data?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                type?: "eip4844";
                value?: bigint;
                to: null | `0x${string}`;
                gasPrice?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                maxFeePerBlobGas: bigint;
                accessList?: AccessList;
                blobs: readonly `0x${string}`[] | readonly Uint8Array[];
                blobVersionedHashes?: readonly `0x${string}`[];
                kzg?: Kzg;
                sidecars?: readonly BlobSidecar<`0x${(...)}`>[];
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip7702";
                value?: bigint;
                gasPrice?: undefined;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                accessList?: AccessList;
                authorizationList?: AuthorizationList<number, boolean>;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
            }, "from">) & {
                kzg?: Kzg;
            }
          • chainOverride extends undefined | Chain = undefined

          Parameters

          • args: SendTransactionParameters<undefined | Chain, undefined | Account, chainOverride, request>

            SendTransactionParameters

          Returns Promise<`0x${string}`>

    • signMessage: ((args) => Promise<`0x${string}`>)

      Calculates an Ethereum-specific signature in EIP-191 format: keccak256("\x19Ethereum Signed Message:\n" + len(message) + message)).

      • Docs: https://viem.sh/docs/actions/wallet/signMessage
      • JSON-RPC Methods:
        • JSON-RPC Accounts: personal_sign
        • Local Accounts: Signs locally. No JSON-RPC request.

      With the calculated signature, you can:

      • use verifyMessage to verify the signature,
      • use recoverMessageAddress to recover the signing address from a signature.

      Returns

      The signed message. SignMessageReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const signature = await client.signMessage({
        account: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
        message: 'hello world',
      })
      Copy

      Example

      // Account Hoisting
      import { createWalletClient, http } from 'viem'
      import { privateKeyToAccount } from 'viem/accounts'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        account: privateKeyToAccount('0x…'),
        chain: mainnet,
        transport: http(),
      })
      const signature = await client.signMessage({
        message: 'hello world',
      })
      Copy

      • • (args): Promise<`0x${string}`>

        • Parameters

          • args: SignMessageParameters<undefined | Account>

            SignMessageParameters

          Returns Promise<`0x${string}`>

    • signTransaction: (<chainOverride, const request>(args) => Promise<TransactionSerialized<GetTransactionType<request, (request extends LegacyProperties
          ? "legacy"
          : never) | (request extends EIP1559Properties
          ? "eip1559"
          : never) | (request extends EIP2930Properties
          ? "eip2930"
          : never) | (request extends EIP4844Properties
          ? "eip4844"
          : never) | (request extends EIP7702Properties
          ? "eip7702"
          : never) | (request["type"] extends undefined | string
          ? Extract<any[any], string>
          : never)>, (GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | ((...)[(...)] extends (...) | (...)
              ? Extract<(...), (...)>
              : never)> extends "eip1559"
          ? `0x02${string}`
          : never) | (GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | ((...)[(...)] extends (...) | (...)
              ? Extract<(...), (...)>
              : never)> extends "eip2930"
          ? `0x01${string}`
          : never) | (GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | ((...)[(...)] extends (...) | (...)
              ? Extract<(...), (...)>
              : never)> extends "eip4844"
          ? `0x03${string}`
          : never) | (GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | ((...)[(...)] extends (...) | (...)
              ? Extract<(...), (...)>
              : never)> extends "eip7702"
          ? `0x04${string}`
          : never) | (GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | ((...)[(...)] extends (...) | (...)
              ? Extract<(...), (...)>
              : never)> extends "legacy"
          ? TransactionSerializedLegacy
          : never)>>)

      Signs a transaction.

      • Docs: https://viem.sh/docs/actions/wallet/signTransaction
      • JSON-RPC Methods:
        • JSON-RPC Accounts: eth_signTransaction
        • Local Accounts: Signs locally. No JSON-RPC request.

      Returns

      The signed message. SignTransactionReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const request = await client.prepareTransactionRequest({
        account: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
        to: '0x0000000000000000000000000000000000000000',
        value: 1n,
      })
      const signature = await client.signTransaction(request)
      Copy

      Example

      // Account Hoisting
      import { createWalletClient, http } from 'viem'
      import { privateKeyToAccount } from 'viem/accounts'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        account: privateKeyToAccount('0x…'),
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const request = await client.prepareTransactionRequest({
        to: '0x0000000000000000000000000000000000000000',
        value: 1n,
      })
      const signature = await client.signTransaction(request)
      Copy

      • • <chainOverride, const request>(args): Promise<TransactionSerialized<GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | (request["type"] extends undefined | string
              ? Extract<any[any], string>
              : never)>, (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip1559"
              ? `0x02${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip2930"
              ? `0x01${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip4844"
              ? `0x03${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip7702"
              ? `0x04${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "legacy"
              ? TransactionSerializedLegacy
              : never)>>

        • Type Parameters

          • chainOverride extends undefined | Chain
          • const request extends Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "legacy";
                value?: bigint;
                gasPrice?: bigint;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: undefined;
                maxPriorityFeePerGas?: undefined;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                accessList: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip2930";
                value?: bigint;
                gasPrice?: bigint;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: undefined;
                maxPriorityFeePerGas?: undefined;
                accessList?: AccessList;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip1559";
                value?: bigint;
                gasPrice?: undefined;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                accessList?: AccessList;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
                authorizationList: undefined;
            }, "from"> | Omit<{
                from?: `0x${string}`;
                data?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                type?: "eip4844";
                value?: bigint;
                to: null | `0x${string}`;
                gasPrice?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                maxFeePerBlobGas: bigint;
                accessList?: AccessList;
                blobs: readonly `0x${string}`[] | readonly Uint8Array[];
                blobVersionedHashes?: readonly `0x${string}`[];
                kzg?: Kzg;
                sidecars?: readonly BlobSidecar<`0x${string}`>[];
                authorizationList: undefined;
            }, "from"> | Omit<{
                data?: `0x${string}`;
                from?: `0x${string}`;
                gas?: bigint;
                nonce?: number;
                to?: null | `0x${string}`;
                type?: "eip7702";
                value?: bigint;
                gasPrice?: undefined;
                maxFeePerBlobGas?: undefined;
                maxFeePerGas?: bigint;
                maxPriorityFeePerGas?: bigint;
                accessList?: AccessList;
                authorizationList?: AuthorizationList<number, boolean>;
                blobs: undefined;
                blobVersionedHashes: undefined;
                kzg: undefined;
                sidecars: undefined;
            }, "from"> = UnionOmit<ExtractChainFormatterParameters<DeriveChain<undefined | Chain, chainOverride>, "transactionRequest", TransactionRequest>, "from">

          Parameters

          • args: SignTransactionParameters<undefined | Chain, undefined | Account, chainOverride, request>

            SignTransactionParameters

          Returns Promise<TransactionSerialized<GetTransactionType<request, (request extends LegacyProperties
              ? "legacy"
              : never) | (request extends EIP1559Properties
              ? "eip1559"
              : never) | (request extends EIP2930Properties
              ? "eip2930"
              : never) | (request extends EIP4844Properties
              ? "eip4844"
              : never) | (request extends EIP7702Properties
              ? "eip7702"
              : never) | (request["type"] extends undefined | string
              ? Extract<any[any], string>
              : never)>, (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip1559"
              ? `0x02${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip2930"
              ? `0x01${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip4844"
              ? `0x03${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "eip7702"
              ? `0x04${string}`
              : never) | (GetTransactionType<request, (request extends LegacyProperties
                  ? "legacy"
                  : never) | (request extends EIP1559Properties
                  ? "eip1559"
                  : never) | (request extends EIP2930Properties
                  ? "eip2930"
                  : never) | (request extends EIP4844Properties
                  ? "eip4844"
                  : never) | (request extends EIP7702Properties
                  ? "eip7702"
                  : never) | ((...)[(...)] extends (...) | (...)
                  ? Extract<(...), (...)>
                  : never)> extends "legacy"
              ? TransactionSerializedLegacy
              : never)>>

    • signTypedData: (<const typedData, primaryType>(args) => Promise<`0x${string}`>)

      Signs typed data and calculates an Ethereum-specific signature in EIP-191 format: keccak256("\x19Ethereum Signed Message:\n" + len(message) + message)).

      • Docs: https://viem.sh/docs/actions/wallet/signTypedData
      • JSON-RPC Methods:
        • JSON-RPC Accounts: eth_signTypedData_v4
        • Local Accounts: Signs locally. No JSON-RPC request.

      Returns

      The signed data. SignTypedDataReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const signature = await client.signTypedData({
        account: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
        domain: {
          name: 'Ether Mail',
          version: '1',
          chainId: 1,
          verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
        },
        types: {
          Person: [
            { name: 'name', type: 'string' },
            { name: 'wallet', type: 'address' },
          ],
          Mail: [
            { name: 'from', type: 'Person' },
            { name: 'to', type: 'Person' },
            { name: 'contents', type: 'string' },
          ],
        },
        primaryType: 'Mail',
        message: {
          from: {
            name: 'Cow',
            wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
          },
          to: {
            name: 'Bob',
            wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
          },
          contents: 'Hello, Bob!',
        },
      })
      Copy

      Example

      // Account Hoisting
      import { createWalletClient, http } from 'viem'
      import { privateKeyToAccount } from 'viem/accounts'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        account: privateKeyToAccount('0x…'),
        chain: mainnet,
        transport: http(),
      })
      const signature = await client.signTypedData({
        domain: {
          name: 'Ether Mail',
          version: '1',
          chainId: 1,
          verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
        },
        types: {
          Person: [
            { name: 'name', type: 'string' },
            { name: 'wallet', type: 'address' },
          ],
          Mail: [
            { name: 'from', type: 'Person' },
            { name: 'to', type: 'Person' },
            { name: 'contents', type: 'string' },
          ],
        },
        primaryType: 'Mail',
        message: {
          from: {
            name: 'Cow',
            wallet: '0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826',
          },
          to: {
            name: 'Bob',
            wallet: '0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB',
          },
          contents: 'Hello, Bob!',
        },
      })
      Copy

      • • <const typedData, primaryType>(args): Promise<`0x${string}`>

        • Type Parameters

          • const typedData extends {
                string: undefined;
                address: undefined;
                bool: undefined;
                bytes: undefined;
                bytes18: undefined;
                bytes1: undefined;
                bytes2: undefined;
                bytes32: undefined;
                bytes31: undefined;
                bytes30: undefined;
                bytes29: undefined;
                bytes28: undefined;
                bytes27: undefined;
                bytes26: undefined;
                bytes25: undefined;
                bytes24: undefined;
                bytes23: undefined;
                bytes22: undefined;
                bytes21: undefined;
                bytes20: undefined;
                bytes19: undefined;
                bytes17: undefined;
                bytes16: undefined;
                bytes15: undefined;
                bytes14: undefined;
                bytes13: undefined;
                bytes12: undefined;
                bytes11: undefined;
                bytes10: undefined;
                bytes9: undefined;
                bytes8: undefined;
                bytes7: undefined;
                bytes6: undefined;
                bytes5: undefined;
                bytes4: undefined;
                bytes3: undefined;
                int40: undefined;
                int32: undefined;
                int24: undefined;
                int16: undefined;
                int8: undefined;
                int48: undefined;
                int56: undefined;
                int64: undefined;
                int72: undefined;
                int80: undefined;
                int88: undefined;
                int96: undefined;
                int104: undefined;
                int112: undefined;
                int120: undefined;
                int128: undefined;
                int136: undefined;
                int144: undefined;
                int152: undefined;
                int160: undefined;
                int168: undefined;
                int176: undefined;
                int184: undefined;
                int192: undefined;
                int200: undefined;
                int208: undefined;
                int216: undefined;
                int224: undefined;
                int232: undefined;
                int240: undefined;
                int248: undefined;
                int256: undefined;
                uint40: undefined;
                uint32: undefined;
                uint24: undefined;
                uint16: undefined;
                uint8: undefined;
                uint48: undefined;
                uint56: undefined;
                uint64: undefined;
                uint72: undefined;
                uint80: undefined;
                uint88: undefined;
                uint96: undefined;
                uint104: undefined;
                uint112: undefined;
                uint120: undefined;
                uint128: undefined;
                uint136: undefined;
                uint144: undefined;
                uint152: undefined;
                uint160: undefined;
                uint168: undefined;
                uint176: undefined;
                uint184: undefined;
                uint192: undefined;
                uint200: undefined;
                uint208: undefined;
                uint216: undefined;
                uint224: undefined;
                uint232: undefined;
                uint240: undefined;
                uint248: undefined;
                uint256: undefined;
            } | {
                [key: string]: unknown;
            }
          • primaryType extends string

          Parameters

          • args: SignTypedDataParameters<typedData, primaryType, undefined | Account>

            SignTypedDataParameters

          Returns Promise<`0x${string}`>

    • switchChain: ((args) => Promise<void>)

      Switch the target chain in a wallet.

      • Docs: https://viem.sh/docs/actions/wallet/switchChain
      • JSON-RPC Methods: eth_switchEthereumChain

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet, optimism } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      await client.switchChain({ id: optimism.id })
      Copy

      • • (args): Promise<void>

        • Parameters

          • args: SwitchChainParameters

            SwitchChainParameters

          Returns Promise<void>

    • watchAsset: ((args) => Promise<boolean>)

      Adds an EVM chain to the wallet.

      • Docs: https://viem.sh/docs/actions/wallet/watchAsset
      • JSON-RPC Methods: eth_switchEthereumChain

      Returns

      Boolean indicating if the token was successfully added. WatchAssetReturnType

      Example

      import { createWalletClient, custom } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const success = await client.watchAsset({
        type: 'ERC20',
        options: {
          address: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
          decimals: 18,
          symbol: 'WETH',
        },
      })
      Copy

      • • (args): Promise<boolean>

        • Parameters

          • args: WatchAssetParams

            WatchAssetParameters

          Returns Promise<boolean>

    • writeContract: (<const abi, functionName, args, chainOverride>(args) => Promise<`0x${string}`>)

      Executes a write function on a contract.

      • Docs: https://viem.sh/docs/contract/writeContract
      • Examples: https://stackblitz.com/github/wevm/viem/tree/main/examples/contracts_writing-to-contracts

      A "write" function on a Solidity contract modifies the state of the blockchain. These types of functions require gas to be executed, and hence a Transaction is needed to be broadcast in order to change the state.

      Internally, uses a Wallet Client to call the sendTransaction action with ABI-encoded data.

      Warning: The write internally sends a transaction – it does not validate if the contract write will succeed (the contract may throw an error). It is highly recommended to simulate the contract write with contract.simulate before you execute it.

      Returns

      A Transaction Hash. WriteContractReturnType

      Example

      import { createWalletClient, custom, parseAbi } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const hash = await client.writeContract({
        address: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2',
        abi: parseAbi(['function mint(uint32 tokenId) nonpayable']),
        functionName: 'mint',
        args: [69420],
      })
      Copy

      Example

      // With Validation
      import { createWalletClient, custom, parseAbi } from 'viem'
      import { mainnet } from 'viem/chains'
      
      const client = createWalletClient({
        chain: mainnet,
        transport: custom(window.ethereum),
      })
      const { request } = await client.simulateContract({
        address: '0xFBA3912Ca04dd458c843e2EE08967fC04f3579c2',
        abi: parseAbi(['function mint(uint32 tokenId) nonpayable']),
        functionName: 'mint',
        args: [69420],
      }
      const hash = await client.writeContract(request)
      Copy

      • • <const abi, functionName, args, chainOverride>(args): Promise<`0x${string}`>

        • Type Parameters

          • const abi extends Abi | readonly unknown[]
          • functionName extends string
          • args extends unknown
          • chainOverride extends undefined | Chain = undefined

          Parameters

          • args: WriteContractParameters<abi, functionName, args, undefined | Chain, undefined | Account, chainOverride>

            WriteContractParameters

          Returns Promise<`0x${string}`>

    • extend: (<const client>(fn) => Client<Transport, undefined | Chain, undefined | Account, WalletRpcSchema, {
          [K in string | number | symbol]: client[K]
      } & WalletActions<undefined | Chain, undefined | Account>>)

      • • <const client>(fn): Client<Transport, undefined | Chain, undefined | Account, WalletRpcSchema, {
              [K in string | number | symbol]: client[K]
          } & WalletActions<undefined | Chain, undefined | Account>>

        • Type Parameters

          • const client extends {
                account?: undefined;
                batch?: undefined;
                cacheTime?: undefined;
                ccipRead?: undefined;
                chain?: undefined;
                key?: undefined;
                name?: undefined;
                pollingInterval?: undefined;
                request?: undefined;
                transport?: undefined;
                type?: undefined;
                uid?: undefined;
            } & ExactPartial<ExtendableProtectedActions<Transport, undefined | Chain, undefined | Account>>

          Parameters

          • fn: ((client) => client)
            • • (client): client

              • Parameters

                • client: Client<Transport, undefined | Chain, undefined | Account, WalletRpcSchema, WalletActions<undefined | Chain, undefined | Account>>

                Returns client

          Returns Client<Transport, undefined | Chain, undefined | Account, WalletRpcSchema, {
              [K in string | number | symbol]: client[K]
          } & WalletActions<undefined | Chain, undefined | Account>>

  • token: `0x${string}`

  • Optional amount?: string

  • Optional options?: DefaultWriteContractOptions