# Deploy

The legacy transaction format used in Casper 1.x. A deploy contains a header, a payment item, a session item, and approvals.

## Import

```ts
import { Deploy, DeployHeader, DEFAULT_DEPLOY_TTL } from 'casper-js-sdk';
```

## Constants

```ts
DEFAULT_DEPLOY_TTL = 1800000  // 30 minutes in milliseconds
```

## Classes

### `Deploy`

| Property | Type | Description |
|---|---|---|
| `hash` | `Hash` | Deploy hash |
| `header` | `DeployHeader` | Deploy metadata |
| `payment` | `ExecutableDeployItem` | Payment item |
| `session` | `ExecutableDeployItem` | Session item (the actual execution) |
| `approvals` | `Approval[]` | Signatures authorizing this deploy |

#### Methods

```ts
deploy.validate(): boolean
deploy.sign(keys: PrivateKey): void
deploy.toBytes(): Uint8Array
deploy.isTransfer(): boolean
deploy.isStandardPayment(): boolean
```

#### Static Methods

```ts
Deploy.createNew(
  session: ExecutableDeployItem,
  payment: ExecutableDeployItem,
  header: DeployHeader
): Deploy

Deploy.makeDeploy(
  session: ExecutableDeployItem,
  payment: ExecutableDeployItem,
  chainName: string,
  publicKey: PublicKey,
  ttl?: number
): Deploy

Deploy.addArgToDeploy(deploy: Deploy, name: string, value: CLValue): Deploy
Deploy.newTransactionFromDeploy(deploy: Deploy): Transaction
Deploy.fromJSON(data: any): Deploy
Deploy.toJSON(deploy: Deploy): any
Deploy.getDeploySizeInBytes(deploy: Deploy): number
```

### `DeployHeader`

Metadata describing the deploy's originator, chain, and timing.

| Property | Type | Description |
|---|---|---|
| `account?` | `PublicKey` | Account submitting the deploy |
| `bodyHash?` | `Hash` | Hash of the deploy body |
| `chainName` | `string` | Target chain name |
| `dependencies` | `Hash[]` | Deploy hashes this deploy depends on |
| `gasPrice` | `number` | Gas price in motes |
| `timestamp` | `Timestamp` | Creation timestamp |
| `ttl` | `Duration` | Time-to-live |

#### Methods

```ts
header.toBytes(): Uint8Array
DeployHeader.default(): DeployHeader
```

## Usage

```ts
import {
  Deploy, ExecutableDeployItem, Args,
  newCLU512, PrivateKey, KeyAlgorithm
} from 'casper-js-sdk';

const privateKey = PrivateKey.generate(KeyAlgorithm.ED25519);

// Standard payment
const payment = ExecutableDeployItem.standardPayment('100000000');

// Session (transfer)
const session = ExecutableDeployItem.newTransfer({
  amount: '2500000000',
  target: recipientPublicKey,
  id: Date.now(),
});

const deploy = Deploy.makeDeploy(
  session,
  payment,
  'casper',
  privateKey.publicKey
);

deploy.sign(privateKey);

const result = await client.putDeploy(deploy);
console.log('Deploy hash:', result.deployHash);
```

## See Also

- [`ExecutableDeployItem`](/types/executable-deploy-item) - Payment and session items
- [`Transaction`](/types/transaction) - Unified transaction type
- [`putDeploy`](/actions/transactions/putDeploy) - Submit a deploy