# JavaScript SDK

Welcome to the Renfter Protocol JavaScript SDK. To begin, we recommend looking at the examples below, for deeper reference see the **JavaScript SDK Github** repo.

### Installation

```
npm i @renfter/js-sdk
// or
yarn add @renfter/js-sdk
```

### Usage

First you have to import Renfter and pass the ethers Signer.

```javascript
import { Renfter } from "@renfter/js-sdk";

const renfter = new Renfter({
    signer,
    [originContractAddress]
});
```

### Offer for NFT for lending

```javascript
renfter.offerForRent({
    tokenId,
    [tokenContractAddress],
    rentingPrice,
    maxRentDuration,
    [whitelistedFunctionality[]]
});
```

### Rent NFT

```javascript
renfter.rent({
    tokenId,
    duration
});
```

### Get lender (original owner)

```javascript
renter.getLender({
    tokenId,
    [tokenContractAddress]
});
```

### Get lender (original owner) by wrapped token ID

```javascript
renter.getLender({
    tokenId,
    [tokenContractAddress]
});
```

### Get borrower

<pre class="language-javascript"><code class="lang-javascript">renter.getBorrower({
    tokenId,
    [tokenContractAddress]
<strong>});
</strong></code></pre>

### Get borrower by wrapped data

```javascript
renter.getBorrowerByWrappedData({
    wTokenId,
    [wContractAddress],
});
```

### Get original contract address

```javascript
renter.getOriginalContractAddress(wContractAddress);
```

### Get wrapped contract address

```javascript
renter.getWrappedContractAddress(contractAddress);
```

### Get original token data

```javascript
renter.getOriginalTokenData({
    tokenId,
    [wContractAddress]
});
```

### Get token whitelisted methods

```javascript
renter.getWhitelistedMethodForTokenId(tokenId);
```

### Check if method is whitelisted

```javascript
renter.checkMethodForTokenId({
    tokenId,
    functionSignature
});
```

### Set token whitelisted methods

```javascript
renter.setWhitelistedMethodForTokenId({
    tokenId,
    functonSignature[],
    whitelisted[]
});
```

### Execute token's functionality

```javascript
renter.executeCustomFunctionality({
    tokenId,
    functionSignature,
    {functionArguments}
});
```

### Get all tokens for address

```javascript
renter.getTokens(address);
```

### Get all tokens available for renting for address

```javascript
renter.getAvailableTokens(address);
```

### Get all rented tokens tokens for address

```javascript
renter.getRentedTokens(address);
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.renfter.com/developers/integration/sdks/javascript-sdk.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
