> For the complete documentation index, see [llms.txt](https://yuga.gitbook.io/zkyuga-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yuga.gitbook.io/zkyuga-whitepaper/developer-guide/stablecoin/transferfrom.md).

# transferFrom

The `transferFrom` method allows a contract to transfer a specified amount of tokens from one Ethereum address to another. This method is particularly useful in scenarios where a contract needs to perform token transfers on behalf of users, provided that the token owner has already given approval via the `approve` method. The `transferFrom` method is a part of the `ERC20Instance` object, returned by the `getActionContractInstance` method of a custom client implementation.

## Method Signature

```javascript
async transferFrom(from: string, to: string, amount: string, signer: any): Promise<string>
```

### Parameters

| Parameter | Type   | Description                                                 |
| --------- | ------ | ----------------------------------------------------------- |
| `from`    | string | The Ethereum address from which tokens will be transferred. |
| `to`      | string | The Ethereum address to which tokens will be transferred.   |
| `amount`  | string | The amount of tokens to be transferred.                     |
| `signer`  | any    | The signer object to authorize the transaction.             |

### Return Value

The method returns a `Promise` that resolves to a `string`, representing the transaction result.

### Example Usage

```javascript
let fromAddress = "0xFromAddress";
let toAddress = "0xToAddress";
let amount = "2000";
let signer = new WalletSigner();

let transferResult = await client.transferFrom(fromAddress, toAddress, amount, signer);
```

## Remarks

Before calling `transferFrom`, ensure that the `from` address has approved the caller (or the contract) to spend the specified `amount` of tokens. The approval is typically obtained through the `approve` method.

The actual implementation of `transferFrom` may vary depending on the token contract's logic and the underlying ERC20 standard implementation.