> ## Documentation Index
> Fetch the complete documentation index at: https://docs.restaking.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# reporterRegistry sub-class

The following readme describes all the functions and their parameters exposed by the `reporterRegistry` class of the K2 SDK. This sub-class of the SDK exposes all the functions from the reporter registry contract of the K2 Lending protocol.

## getk2LendingPool function

This function can be used to get the contract address of the K2 Lending pool.

### Using getk2LendingPool function

```javascript theme={null}
await sdk.reporterRegistry.getk2LendingPool();
```

### Return Parameter

Returns contract address.

## isReporterActive function

Check the contracts if the reporter is active.

### Input Parameters

reporter: ETH Address of the reporter

### Using isReporterActive function

```javascript theme={null}
await sdk.reporterRegistry.isReporterActive(reporter);
```

### Return Parameter

Boolean, `true` if active, `false` otherwise.

## isReporterRagequitted function

Check the contracts if the reporter has rage quitted or not.

### Input Parameters

reporter: ETH address of the reporter

### Using isReporterRagequitted function

```javascript theme={null}
await sdk.reporterRegistry.isReporterRagequitted(reporter);
```

### Return Parameter

Boolean, `true` if rage quitted, `false` otherwise.

## registerReporter function

Register a reporter to the reporter registry contract. The `msg.sender` will be registered as the reporter.

### Using registerReporter function

```javascript theme={null}
await sdk.reporterRegistry.registerReporter();
```

### Return Parameter

Transaction details if the transaction is successful.

## isReporterOperational function

Check if the reporter is operational and can perform reports. An operational reporter is the one that is active and hasn't rage quitted.

### Input Parameters

reporter: ETH address of the reporter

### Using isReporterOperational function

```javascript theme={null}
await sdk.reporterRegistry.isReporterOperational(reporter);
```

### Return Parameter

Boolean, `true` if reporter is operational, `false` otherwise.

## batchSubmitReports function

Function to submit multiple verified reports in a single transaction.

### Input Parameters

reports: List of verified reports of the following structure:

```
{
    slashType: SlashType;
    debtor: string;     // Borrower address
    amount: number;     // Amount being slashed
    identifier: number; // Unique ID to avoid double reporting
    block: number;      // Block number
    signature: string;  // Blind signature being reported
};
```

reportSignatures: List of signatures (designatedVerifierSignature obtained after verifying the reports) of the respective reports. Each signature follows the following structure:

```
{
    v: number; // version
    r: string; // x coordinate of the curve
    s: string; // y coordinate of the curve
}
```

### Using batchSubmitReports function

```javascript theme={null}
await sdk.reporterRegistry.batchSubmitReports(reports, reportSignatures);
```

### Return Parameter

Transaction details if the transaction is successful.

## reportTypedHash function

Calculate typed hash of report struct.

### Input Parameters

report: verified report of the following structure:

```
{
    slashType: SlashType;
    debtor: string;     // Borrower address
    amount: number;     // Amount being slashed
    identifier: number; // Unique ID to avoid double reporting
    block: number;      // Block number
    signature: string;  // Blind signature being reported
};
```

### Using reportTypedHash function

```javascript theme={null}
await sdk.reporterRegistry.reportTypedHash(report);
```

### Return Parameter

`bytes32` hash string

## isValidReport function

### Input Parameters

report: Verified report obtained from the `verifyLivenessReport` function, of the following structure:

```
{
    slashType: SlashType;
    debtor: string;     // Borrower address
    amount: number;     // Amount being slashed
    identifier: number; // Unique ID to avoid double reporting
    block: number;      // Block number
    signature: string;  // Blind signature being reported
};
```

reportSignature: Signature (designatedVerifierSignature obtained after verifying the reports) of the respective report. The signature follows the following structure:

```
{
    v: number; // version
    r: string; // x coordinate of the curve
    s: string; // y coordinate of the curve
}
```

### Using isValidReport function

```javascript theme={null}
await sdk.reporterRegistry.isValidReport(report, reportSignature);
```

### Return Parameter

Returns `true` if valid, `false` otherwise.