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

# Transaction

> Kotlin Data Class

**Data Class**

```kotlin theme={null}
data class Transaction(val id: String, val status: TransactionStatus, val onChain: OnChainData, val params: TransactionParams, val walletType: WalletType, val createdAt: Long, val approvals: Approvals?, val error: TransactionErrorDetails?)
```

## Constructors

```kotlin theme={null}
constructor(id: String, status: TransactionStatus, onChain: OnChainData, params: TransactionParams, walletType: WalletType, createdAt: Long, approvals: Approvals?, error: TransactionErrorDetails?)
```

## Properties

| Property | Type | Description |
| - | - | - |
| `approvals` | `Approvals?` | Approval signatures required or submitted for this transaction, if any |
| `createdAt` | `Long` | Unix epoch milliseconds when the transaction was created |
| `error` | `TransactionErrorDetails?` | Error details when status is TransactionStatus.FAILED, otherwise null |
| `id` | `String` | Unique transaction identifier |
| `onChain` | `OnChainData` | Chain-specific data available after the transaction is submitted |
| `params` | `TransactionParams` | The inputs used to construct this transaction |
| `status` | `TransactionStatus` | Current lifecycle state of the transaction |
| `walletType` | `WalletType` | The type of wallet that owns this transaction |