> For the complete documentation index, see [llms.txt](https://docs.zk.link/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zk.link/developer/sdk/changelog/transactions/9-liquidation.md).

# Liquidation

### type LiquidationBuilder

```go
type LiquidationBuilder struct {
    AccountId            AccountId
    SubAccountId         SubAccountId
    SubAccountNonce      Nonce
    ContractPrices       []ContractPrice
    MarginPrices         []SpotPriceInfo
    LiquidationAccountId AccountId
    Fee                  BigUint
    FeeToken             TokenId
}
```

The builder used to create the [Liquidation](#type-liquidation) transaction.

### type Liquidation

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

#### func NewLiquidation(builder LiquidationBuilder)

```go
func NewLiquidation(builder LiquidationBuilder) *Liquidation
```

Create a new [Liquidation](#type-liquidation) transaction.

#### func (\*Liquidation) GetBytes

```go
func (*Liquidation) GetBytes() []uint8
```

Get the encoded bytes to create the L3 signature. See more in [Private Key and Signature](/developer/api-and-sdk/private_key/liquidation.md)

#### func (\*Liquidation) TxHash

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

Get the transaction hash of the transaction.

#### func (\*Liquidation) JsonStr

```go
func (*Liquidation) JsonStr() string
```

Get the json string of the transaction.

#### func (\*Liquidation) IsValid

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

Check if the transaction is valid.

#### func (\*Liquidation) CreateSignedTx

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

Create a new Liquidation transaction with L3 signature inside. **input:**

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

#### func (\*Liquidation) GetSignature

```go
func (*Liquidation) GetSignature() ZkLinkSignature
```

Get L3 signature of the transaction.

#### func (\*Liquidation) IsSignatureValid

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

Check if the inside L3 signature is valid or not.

#### func (\*Liquidation) ToZklinkTx

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

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


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