# Obtain downgrade task - GetCleanServiceResizeContract

## Overview

Retrieve downgrade task, return error when no downgrade task exists






## Definition

### Public Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Action**     | string  | Corresponding API command name, the current API is `GetCleanServiceResizeContract`.                      | **Yes** |
| **PublicKey**  | string  | The user's public key can be obtained from [Console](https://console.genesissai.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 |
|:---|:---|:---|:---|
| **ResourceId** | string | Resource ID, cannot be empty |**Yes**|

### 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|
| **ResourceId** | string | Resource ID |**Yes**|
| **BeginTime** | string | Scheduled start adjustment time (Timestamp) |**Yes**|
| **CleanRegion** | string | Region |**Yes**|
| **MaxCleanCapacity** | int | Traffic cleaning upper limit protection traffic (unit G) 5, 10, 15, 20, 25 |**Yes**|
| **ChargeType** | string | Billing Method (Month: Monthly, Year: Yearly) |**Yes**|
| **Quantity** | int | Protection duration (0 represents the end of the purchase month, end of the year), only effective when downgraded |**Yes**|




## Example

### Request Example
    
```
https://api.genesissai.com/?Action=GetCleanServiceResizeContract
&ResourceId=wMJqpbPN
```

### Response Example
    
```json
{
  "Action": "GetCleanServiceResizeContractResponse",
  "BeginTime": "hogQIqTB",
  "ChargeType": "Month",
  "CleanRegion": "hCXSbJlP",
  "MaxCleanCapacity": 1,
  "Quantity": 3,
  "ResourceId": "GebkAmBh",
  "RetCode": 0
}
```