# Types

Reference for key TypeScript types in the Casper JS SDK.

## Core Types

```ts
type BigNumberish = BigNumber | string | number;
type HexString = string;     // hex without 0x prefix
type TransactionHash = string;
```

## Identifier Types

```ts
type PurseIdentifier =
  | { mainPurseUnderPublicKey: string }
  | { mainPurseUnderAccountHash: string }
  | { mainPurseUnderEntityAddr: string }
  | { purseURef: string };

type EntityIdentifier =
  | { publicKey: string }
  | { accountHash: string }
  | { entityAddr: string };
```

## Builder Options

```ts
interface WaitOptions {
  timeout?: number;   // ms, default 60000
  interval?: number;  // ms, default 2000
}

interface HttpHandlerOptions {
  timeout?: number;
  headers?: Record<string, string>;
}
```

## CLType Constants

```ts
// Primitive types
CLType.Bool
CLType.I32
CLType.I64
CLType.U8
CLType.U32
CLType.U64
CLType.U128
CLType.U256
CLType.U512
CLType.String
CLType.Unit
CLType.Key
CLType.URef
CLType.PublicKey
CLType.Any

// Parameterized types
CLType.List(innerType: CLType)
CLType.Option(innerType: CLType)
CLType.Map(keyType: CLType, valType: CLType)
CLType.Result(okType: CLType, errType: CLType)
CLType.Tuple1(t: CLType)
CLType.Tuple2(t1: CLType, t2: CLType)
CLType.Tuple3(t1: CLType, t2: CLType, t3: CLType)
CLType.ByteArray(length: number)
```

## Response Types

Key response types from RPC calls:

| Type | Returned by |
|---|---|
| `ChainGetBlockResult` | `getLatestBlock`, `getBlockByHash`, `getBlockByHeight` |
| `QueryBalanceResult` | `queryLatestBalance` |
| `QueryBalanceDetailsResult` | `queryLatestBalanceDetails` |
| `PutTransactionResult` | `putTransaction` |
| `PutDeployResult` | `putDeploy` |
| `InfoGetTransactionResult` | `getTransactionByTransactionHash` |
| `QueryGlobalStateResult` | `queryLatestGlobalState` |
| `StateGetEntityResult` | `getLatestEntity` |
| `StateGetAuctionInfoResult` | `getLatestAuctionInfo` |
| `InfoGetStatusResult` | `getStatus` |