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

# Approve Vault as Operator

## `vault.nftApproval(NftApproval)`

Approve a Vault as operator for specific Machine/Contract NFT token IDs by calling `approve` per token. This sends transactions from the NFT owner/controller.

### NftApproval Type Parameters

| Parameter             | Type       | Required | Description                                                                     |
| --------------------- | ---------- | -------- | ------------------------------------------------------------------------------- |
| **machineController** | `Signer`   | Required | Owner/controller signer that grants approvals. Must be connected to a provider. |
| **nft**               | `string`   | Required | Machine NFT or Contract NFT contract address.                                   |
| **vault**             | `string`   | Required | Vault address to approve as operator.                                           |
| **tokenIds**          | `string[]` | Required | Token IDs to approve.                                                           |

### Returns

| Field                     | Type                   | Description                               |
| ------------------------- | ---------------------- | ----------------------------------------- |
| **status**                | `approved`             | Status of the operation.                  |
| **nft**                   | `string`               | NFT contract address.                     |
| **vault**                 | `string`               | Vault address approved for the token IDs. |
| **newlyApprovedTokenIds** | `string[]`             | Token IDs approved in this call.          |
| **receipts**              | `TransactionReceipt[]` | Transaction receipts (one per token ID).  |

### Usage

#### TypeScript

```TypeScript theme={"theme":{"light":"github-light-default","dark":"github-dark"}}
import 'dotenv/config';
import { RWA, Chain, type SDKInit } from "@peaq-network/rwa";
import { JsonRpcProvider, Wallet } from "ethers";

async function main() {
  // 0. Create RWA instance and provider
  const provider = new JsonRpcProvider(process.env.HTTPS_BASE_URL);
  const init: SDKInit = { chainId: Chain.AGUNG, provider: provider };
  const rwa_sdk = new RWA(init);

  // 1. Machine Controller
  const controller = new Wallet(process.env.ALICE_PRIVATE_KEY!, provider);

  // 2. Approve the vault for specific MNFT token IDs
  const result = await rwa_sdk.vault.nftApproval({
    machineController: controller,
    nft: "0x5Ca3db1f292f913DDdA8C5385E5391438665463c",
    vault: "0x907229D0A25A5Bb16F0ff3D890f38Eb4Ad52Ea1a",
    tokenIds: [
      "1262843802665614120367007478296348432923457422026",
      "880598419457374294774049460835571533031091411284"
    ]
  });
  console.log("Result", result);
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});
```

#### JavaScript

```js theme={"theme":{"light":"github-light-default","dark":"github-dark"}}
import 'dotenv/config';
import { RWA, Chain } from "@peaq-network/rwa";
import { JsonRpcProvider, Wallet } from "ethers";

async function main() {
  // 0. Create RWA instance and provider
  const provider = new JsonRpcProvider(process.env.HTTPS_BASE_URL);
  const rwa_sdk = new RWA({ chainId: Chain.AGUNG, provider });

  // 1. Machine Controller
  const controller = new Wallet(process.env.ALICE_PRIVATE_KEY, provider);

  // 2. Approve the vault for specific MNFT token IDs
  const result = await rwa_sdk.vault.nftApproval({
    machineController: controller,
    nft: "0x5Ca3db1f292f913DDdA8C5385E5391438665463c",
    vault: "0x907229D0A25A5Bb16F0ff3D890f38Eb4Ad52Ea1a",
    tokenIds: [
      "1262843802665614120367007478296348432923457422026",
      "880598419457374294774049460835571533031091411284"
    ]
  });
  console.log("Result", result);
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});
```

### Example outputs

```
Result {
  status: 'approved',
  nft: '0x5Ca3db1f292f913DDdA8C5385E5391438665463c',
  vault: '0x907229D0A25A5Bb16F0ff3D890f38Eb4Ad52Ea1a',
  newlyApprovedTokenIds: [
    '1262843802665614120367007478296348432923457422026',
    '880598419457374294774049460835571533031091411284'
  ],
  receipts: [
    ContractTransactionReceipt { ... },
    ContractTransactionReceipt { ... }
  ]
}
```

Notes:

* This approves specific token IDs (not `setApprovalForAll`).
* For Contract NFTs, pass the Contract NFT address and its token IDs.