# 查询权限策略列表 - ListPolicies #### 功能介绍 本接口用于查询指定通道的权限策略列表。 #### 调用方法 请参见[如何调用API](https://support.huaweicloud.com/api-dis/dis_02_0400.html)。 #### URI GET /v2/{project_id}/streams/{stream_name}/policies 表1路径参数 | 参数 | 是否必选 | 参数类型 | 描述 | |:---|:---|:---|:---| | project_id | 是 | String | 项目ID。 | | stream_name | 是 | String | 通道名称。 | #### 请求参数 表2请求Header参数 | 参数 | 是否必选 | 参数类型 | 描述 | |:---|:---|:---|:---| | X-Auth-Token | 是 | String | 用户Token。 通过调用IAM服务获取用户Token接口获取（响应消息头中X-Subject-Token的值）。 | #### 响应参数 **状态码：200** 表3响应Body参数 | 参数 | 参数类型 | 描述 | |:---|:---|:---| | stream_id | String | 通道唯一标识符。 | | rules | Array of [PrincipalRule] objects | 通道授权信息列表。 | 表4PrincipalRule | 参数 | 参数类型 | 描述 | |:---|:---|:---| | principal | String | 授权用户ID。 | | principal_name | String | 授权用户名。如果授权给租户下的所有子用户，格式为：domainName.\*；如果授权给租户下的指定子用户，则格式为：domainName.userName | | action_type | String | 授权操作类型。 - putRecords：上传数据。 - getRecords：下载数据。 | | effect | String | 授权影响类型。 - accept：允许该授权操作。 | #### 请求示例 查询权限策略列表 ``` GET https://{Endpoint}/v2/{project_id}/streams/{stream_name}/policies ``` #### 响应示例 **状态码：200** 正常返回 ``` { "streamId" : "CiFdELMr0401K9GGZlp", "rules" : [ { "action_type" : "putRecords", "principal" : "3b3f237122574xxxxb74482ae11005ba.*", "principal_name" : "anotherusername", "effect" : "accept" } ] } ``` #### SDK代码示例 SDK代码示例如下。 #### Java ``` package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.dis.v2.region.DisRegion; import com.huaweicloud.sdk.dis.v2.*; import com.huaweicloud.sdk.dis.v2.model.*; public class ListPoliciesSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); String projectId = "{project_id}"; ICredential auth = new BasicCredentials() .withProjectId(projectId) .withAk(ak) .withSk(sk); DisClient client = DisClient.newBuilder() .withCredential(auth) .withRegion(DisRegion.valueOf("")) .build(); ListPoliciesRequest request = new ListPoliciesRequest(); request.withStreamName("{stream_name}"); try { ListPoliciesResponse response = client.listPolicies(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } ``` #### Python ``` # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkdis.v2.region.dis_region import DisRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkdis.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}" credentials = BasicCredentials(ak, sk, projectId) client = DisClient.new_builder() \ .with_credentials(credentials) \ .with_region(DisRegion.value_of("")) \ .build() try: request = ListPoliciesRequest() request.stream_name = "{stream_name}" response = client.list_policies(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) ``` #### Go ``` package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" dis "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dis/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dis/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dis/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") projectId := "{project_id}" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). WithProjectId(projectId). Build() client := dis.NewDisClient( dis.DisClientBuilder(). WithRegion(region.ValueOf("")). WithCredential(auth). Build()) request := &model.ListPoliciesRequest{} request.StreamName = "{stream_name}" response, err := client.ListPolicies(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } ``` #### 更多 更多编程语言的SDK代码示例，请参见[API Explorer](https://console.huaweicloud.com/apiexplorer/#/openapi/DIS/sdk?api=ListPolicies)的代码示例页签，可生成自动对应的SDK代码示例。 #### 状态码 | 状态码 | 描述 | |:---|:---| | 200 | 正常返回 | #### 错误码 请参见[错误码](https://support.huaweicloud.com/api-dis/ErrorCode.html)。