# Obtain resource information for configurable port forwarding rules of NAT gateway - GetAvailableResourceForPolicy

## Overview

Obtain resource information for configurable port forwarding rules of NAT gateway






## Definition

### Public Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Action**     | string  | Corresponding API command name, the current API is `GetAvailableResourceForPolicy`.                      | **Yes** |
| **PublicKey**  | string  | The user's public key can be obtained from [Console](https://console.sigcalcloud.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) |**Yes**|
| **ProjectId** | string | Project Id. If not filled in, the default project is used. Sub-accounts must fill in. Please refer to the [GetProjectList interface](/docs/api/summary/get_project_list). |No|
| **NATGWId** | string | NAT Gateway Id |**Yes**|
| **Limit** | int | Return data length, default is 20 |No|
| **Offset** | int | List start position offset, default is 0 |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[[*GetAvailableResourceForPolicyDataSet*](#getavailableresourceforpolicydataset)] | Information on supported resource types |**Yes**|
| **TotalCount** | int | The total number of resources that can configure port forwarding rules |No|

#### Data Model


#### GetAvailableResourceForPolicyDataSet

| Field Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **ResourceId** | string | Resource's Id |**Yes**|
| **PrivateIP** | string | Intranet IP corresponding to the resource |**Yes**|
| **ResourceType** | string | Resource Type. "uhost": UHost; "upm", Physical Cloud Host; "hadoophost": Hadoop Node; "fortresshost": Bastion Host; "udockhost", Container. |**Yes**|

## Example

### Request Example
    
```
https://api.sigcalcloud.com/?Action=GetAvailableResourceForPolicy
&Region=xxx
&ProjectId=xxx
&NATGWId=CuqLxGDE
&Limit=1000
&Offset=0
```

### Response Example
    
```json
{
  "Action": "GetAvailableResourceForPolicyResponse",
  "DataSet": [
    {
      "PrivateIP": "xxxx",
      "ResourceId": "xxxx",
      "ResourceType": "xxxx"
    }
  ],
  "RetCode": 0,
  "TotalCount": 3
}
```