# updateToken

Create an unsigned transaction that update TRC10 token information.

## Usage

``` javascript
const options = {
  description: "justfortest", // The description of token, optional
  url: "www.my-token.com", // The token's website url, default String
  freeBandwidth: 1000000, // Each token holder's free bandwidth, optional
  freeBandwidthLimit: 100, // The total free bandwidth of the token, optional
  permissionId: 2 // Optional, for multi-signature use
}
const transaction = await tronWeb.transactionBuilder.updateToken(options, issuerAddress);
```

## Parameters
|Argument|Description|Type|
|--------|-----------|----|
|options|a object that contain some parameters|Object|
|issuerAddress|address of the token issuer,format:hexstring or base58|String|

## Returns

Unsigned transaction object.

## Example

``` javascript
> const createasset = {
  description: "justfortest",
  url: "www.my-token.com",
  freeBandwidth: 1000000,
  freeBandwidthLimit: 100,
  permissionId: 2
}
>const transaction = await tronWeb.transactionBuilder.updateToken(createasset, "TTSFjEG3Lu9WkHdp4JrWYhbGP6K1REqnGQ");
console.log(transaction);
> {
  visible: false,
  txID: '009e8b45c34fbccf86d3f8d1f5e52d694c40b14550289a49048e9ba64799520f',
  raw_data: {
    contract: [ [Object] ],
    ref_block_bytes: '21ca',
    ref_block_hash: '65b258d979c2d3f8',
    expiration: 1581326298000,
    timestamp: 1581326241240
  },
  raw_data_hex: '0a0221ca220865b258d979c2d3f84090d791f3822e5a72080f126c0a30747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5570646174654173736574436f6e747261637412380a1541bf97a54f4b829c4e9253b26024b1829e1a3b1120120b6a757374666f72746573741a0c7777772e636374762e636f6d20c0843d2864280170d89b8ef3822e'
}
```