# Obtain Lifecycle Information - DescribeUFileLifeCycle

## Overview

Obtain Lifecycle Information






## Definition

### Public Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Action**     | string  | Corresponding API command name, the current API is `DescribeUFileLifeCycle`.                      | **Yes** |
| **PublicKey**  | string  | The user's public key can be obtained from [Console](https://console.dezai.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](/docs/api/summary/regionlist) |No|
| **ProjectId** | string | Project ID. If not filled in, the default project is used, sub-accounts must be filled in. Please refer to the [GetProjectList interface](/docs/api/summary/get_project_list). |No|
| **BucketName** | string | Storage Space Name |**Yes**|
| **LifeCycleId** | string | Lifecycle Id; If this parameter is not passed, all lifecycle information under the storage space will be pulled. |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|
| **DataSet** | array[[*LifeCycleItem*](#lifecycleitem)] | Lifecycle Information |**Yes**|

#### Data Model


#### LifeCycleItem

| Field Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **MinSize** | string | Minimum size of the file |**Yes**|
| **MaxSize** | string | Maximum size of the file |**Yes**|
| **LifeCycleId** | string | Lifecycle Id |No|
| **LifeCycleName** | string | Lifecycle Name |No|
| **Prefix** | string | Prefix applicable to the lifecycle; * for all files in the storage space; |No|
| **Days** | int | Specify an expiration day N, the file will expire and be automatically deleted N days after its most recent update time, 0 represents not enabled; |No|
| **Status** | string | Enabled -- Enabled, Disabled -- Not enabled |No|
| **BucketName** | string | Storage Space Name |No|
| **ArchivalDays** | int | Specify an expiration day N, the file will expire N days after its most recent update time, and automatically convert to archive storage type, 0 means not enabled; |No|
| **IADays** | int | Specify an expiration day N, the file will expire N days after its most recent update time, and automatically convert to the low-frequency storage type, 0 means not enabled; |No|

## Example

### Request Example
    
```
https://api.dezai.com/?Action=DescribeUFileLifeCycle
&Region=cn-gd
&ProjectId=org-sdfsdf
&BucketName=test
&LifeCycleId=dc7eca04-edbc-4ae9-aefd-816253123456
```

### Response Example
    
```json
{
  "Action": "DescribeUFileLifeCycleResponse",
  "DateSet": [
    {
      "BucketName": "test",
      "Days": 10,
      "LifeCycleId": "dc7eca04-edbc-4ae9-aefd-816253123456",
      "LifeCycleName": "lifecycle",
      "Prefix": "test-",
      "Status": "Enabled"
    }
  ],
  "RetCode": 0
}
```