# Liquidation

### type ContractPrice

```dart
ContractPrice(
    int pairId,
    String marketPrice,
)
```

**input:**

* pairId: The contract pair id defined by zkLink.
* marketPrice: The market price of the contract pair

### type SpotPriceInfo

```dart
SpotPriceInfo(
    int tokenId,
    String price,
)
```

**input:**

* tokenId: The token id defined by zkLink.
* price: The spot price of the token.

### type Liquidation

[Liquidation](/developer/api-and-sdk/transaction/liquidation.md) transaction type.

```dart
Liquidation(
    int accountId,
	int subAccountId,
	int subAccountNonce,
	List<ContractPrice> contractPrices,
	List<SpotPriceInfo> marginPrices,
	int adlAccountId,
	int pairId,
	String adlSize,
	String adlPrice,
	String fee,
	int feeToken,
)
```

#### func sign

```dart
void sign(ZkLinkSigner zkLinkSigner)
```

Sign transaction with given [ZkLinkSigner](/developer/sdk/changelog-2/signer.md#type-zklinksigner)

#### func toJson

```dart
String toJson()
```

Get the json str of [Liquidation](#type-liquidation)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.zk.link/developer/sdk/changelog-2/transactions/9-liquidation.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.