# Update Token - UpdateUFileToken

## Overview

Update the operation permissions of the token, can operate the prefix of the key, can operate the bucket and the token expiration time point.






## Definition

### Public Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Action**     | string  | Corresponding API command name, the current API is `UpdateUFileToken`.                      | **Yes** |
| **PublicKey**  | string  | The user's public key can be obtained from [Console](https://console.scloudsg.com/uaccount/api_manage)                                             | **Yes** |
| **Signature**  | string  | User signature generated based on public key and API command, see [Signature Algorithm](/docs/api/summary/signature.md)  | **Yes** |

### Request Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Region** | string | Region. See [List of Regions and Availability Zones](api/summary/regionlist) |No|
| **ProjectId** | string | Project ID. If not filled in, the default project is used, and the sub-account must be filled in. Please refer to the [GetProjectList interface](api/summary/get_project_list). |**Yes**|
| **TokenId** | string | Token ID |**Yes**|
| **TokenName** | string | Token Name |No|
| **AllowedOps.N** | string | The operations that the token allows to perform, [ TOKEN_ALLOW_NONE , TOKEN_ALLOW_READ , TOKEN_ALLOW_WRITE , TOKEN_ALLOW_DELETE , TOKEN_ALLOW_LIST, TOKEN_ALLOW_IOP , TOKEN_ALLOW_DP ] |No|
| **AllowedPrefixes.N** | string | The key prefix that the token allows to operate |No|
| **AllowedBuckets.N** | string | The token allows operation of the bucket |No|
| **ExpireTime** | int | Expiration time of the token (timestamp); Note: The expiration time cannot exceed 4102416000 |No|

### Response Field

| Field Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **RetCode** | int | Return status code. If it is 0, it means successful return. If it is not 0, it means failure. |**Yes**|
| **Action** | string | Operation command name. |**Yes**|
| **Message** | string | Returns an error message, providing detailed description when `RetCode` is non-zero. |No|




## Example

### Request Example
    
```
https://api.scloudsg.com/?Action=UpdateUFileToken
&ProjectId=org-xxx
&Region=cn-bj
&TokenId=679c7e5e-74b8-4048-b622-33dd4e8634db
&TokenName=testname
&AllowedOps.0=TOKEN_ALLOW_READ 
&AllowedOps.1=TOKEN_ALLOW_WRITE
&AllowedPrefixes.0=test/test
&AllowedPrefixes.1=test1/test1
&AllowedPrefixes.2=test2/test2
&AllowedBuckets.0=bucket0
&AllowedBuckets.1=bucket1
&ExpireTime=1520411979
```

### Response Example
    
```json
{
  "Action": "UpdateUFileTokenResponse",
  "RetCode": 0
}
```