# Withdraw

### type WithdrawBuilder

```go
type WithdrawBuilder struct {
	AccountId        AccountId
	SubAccountId     SubAccountId
	ToChainId        ChainId
	ToAddress        ZkLinkAddress
	L2SourceToken    TokenId
	L1TargetToken    TokenId
	Amount           BigUint
	Fee              BigUint
	Nonce            Nonce
	WithdrawFeeRatio uint16
	WithdrawToL1     bool
	Timestamp        TimeStamp
}
```

The builder is used to build the [Withdraw](/developer/sdk/changelog/transactions.md#type-withdraw) transaction.

### type Withdraw

[Withdraw](/developer/api-and-sdk/transaction/withdraw.md) transaction type, it's a opaque data type.

#### func NewWithdraw(builder WithdrawBuilder)

```go
func NewWithdraw(builder WithdrawBuilder) *Withdraw
```

Create a new [Withdraw](#type-withdraw) transaction.

**input:** builder: [WithdrawBuilder](#type-withdrawbuilder)

#### func (\*Withdraw) GetBytes

```go
func (_self *Withdraw) GetBytes() []uint8
```

Get the encoded bytes used to create the L3 signature.

#### func (\*Withdraw) TxHash

```go
func (*Withdraw) TxHash() []uint8
```

Get the transaction hash of [Withdraw](#type-withdraw) transaction

#### func (\*Withdraw) IsValid

```go
func (*Withdraw) IsValid() bool
```

Check if all the fields in [Withdraw](#type-withdraw) are valid. For example, if the `ChainId` is exceeded the maximum ChainId, it will return false.

#### func (\*Withdraw) CreateSignedTx

```go
func (*Withdraw) CreateSignedTx(signer *ZkLinkSigner) (*Withdraw, error)
```

The ZkLinkSigner will sign the \[Withdraw] transaction, replace the default signature in the transaction.

**input:**

* signer: [ZkLinkSigner](/developer/sdk/changelog/signer.md#type-zklinksigner)

#### func (\*Withdraw) GetSignature

```go
func (_self *Withdraw) GetSignature() ZkLinkSignature
```

Get L3 signature inside the transaction.

#### func (\*Withdraw) IsSignatureValid

```go
func (*Withdraw) IsSignatureValid() bool
```

Check if the L3 signature in the Withdraw transaction is valid or not.

#### func (\*Withdraw) EthSignature

```go
func (*Withdraw) EthSignature(ethSigner *EthSigner, l2SourceTokenSymbol string) (PackedEthSignature, error)
```

Create the Ethereum signature. **input:**:

* ethSigner: the [Ethereum signer](/developer/sdk/changelog/signer.md#type-ethsigner)
* l2SourceTokenSymbol: the symbol string of l2 token, for example: "USD"

#### func (\*Withdraw) SubmitterSignature

```go
func (_self *Withdraw) SubmitterSignature(signer *ZkLinkSigner) (ZkLinkSignature, error)
```

Create a submitter signature.

**input:**

* signer: [ZkLinkSigner](/developer/sdk/changelog/signer.md#type-zklinksigner)

#### func (\*Withdraw) ToZklinkTx

```go
func (*Withdraw) ToZklinkTx() ZkLinkTx
```

Change the Withdraw transaction to the [ZkLinkTx](/developer/sdk/changelog/basic_types.md#zklinktx)


---

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