# 获取指标关联信息 - ListMetricRelations
#### 功能介绍
获取当前指标图谱。
#### 调用方法
请参见[如何调用API](https://support.huaweicloud.com/api-dataartsstudio/making_request.html)。
#### 授权信息
账号具备所有API的调用权限，如果使用账号下的IAM用户调用当前API，该IAM用户需具备调用API所需的权限。
- 如果使用角色与策略授权，具体权限要求请参见[权限和授权项](https://support.huaweicloud.com/api-dataartsstudio/abcd.html)。
- 如果使用身份策略授权，当前API调用无需身份策略权限。
 
#### URI
GET /v2/{project_id}/design/metric-relations/{id}
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，获取方法请参见[项目ID和账号ID](https://support.huaweicloud.com/api-dataartsstudio/projectid_accountid.html)。 |
| id         | 是    | String | 实体ID，ID字符串。                                                                                           |
   
表2Query参数 
| 参数       | 是否必选 | 参数类型   | 描述    |
|:---|:---|:---|:---|
| biz_type | 是    | String | 指标类型。 |
   
#### 请求参数
表3请求Header参数 
| 参数           | 是否必选 | 参数类型   | 描述                                                                                                                                                                            |
|:---|:---|:---|:---|
| X-Auth-Token | 是    | String | IAM 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） 使用Token认证时必选。                                                                |
| workspace    | 是    | String | 工作空间ID，获取方法请参见[实例ID和工作空间ID](https://support.huaweicloud.com/api-dataartsstudio/dataartsstudio_02_0350.html)。                                                                  |
| X-Project-Id | 否    | String | 项目ID，获取方法请参见[项目ID和账号ID](https://support.huaweicloud.com/api-dataartsstudio/projectid_accountid.html)。 多project场景采用AK/SK认证的接口请求，则该字段必选。 |
| Content-Type | 否    | String | 默认值：application/json;charset=UTF-8 可选，有Body体的情况下必选，没有Body体则无需填写和校验。                                                                    |
   
#### 响应参数
**状态码：200**
表4响应Body参数 
| 参数   | 参数类型                                               | 描述                    |
|:---|:---|:---|
| data | [data] object | data，统一的返回结果的最外层数据结构。 |
   
 表5data 
| 参数    | 参数类型                                                 | 描述                    |
|:---|:---|:---|
| value | [value] object | value，统一的返回结果的外层数据结构。 |
   
 表6value 
| 参数     | 参数类型             | 描述         |
|:---|:---|:---|
| all    | Array of objects | 所有的业务指标信息。 |
| links  | Object           | 指标关联。      |
| groups | Object           | 分组。        |
| total  | Integer          | 总数。        |
   
**状态码：400**
表7响应Body参数 
| 参数         | 参数类型   | 描述                   |
|:---|:---|:---|
| error_code | String | 错误码，如DS.6000，请求处理失败。 |
| error_msg  | String | 错误信息。                |
| data       | Object | 返回的数据信息。             |
   
**状态码：401**
表8响应Body参数 
| 参数         | 参数类型   | 描述                   |
|:---|:---|:---|
| error_code | String | 错误码，如DS.6000，请求处理失败。 |
| error_msg  | String | 错误信息。                |
| data       | Object | 返回的数据信息。             |
   
**状态码：403**
表9响应Body参数 
| 参数         | 参数类型   | 描述                   |
|:---|:---|:---|
| error_code | String | 错误码，如DS.6000，请求处理失败。 |
| error_msg  | String | 错误信息。                |
| data       | Object | 返回的数据信息。             |
   
#### 请求示例
根据指标ID进行指标图谱查询。
```
GET https://{endpoint}/v2/{project_id}/design/metric-relations/1193199235202428928?biz_type=BIZ_METRIC
```
#### 响应示例
**状态码：200**
Success，返回data数据是MetricRelationVOList。
```
{
  "data" : {
    "value" : {
      "all" : [ {
        "vo" : {
          "id" : "1014197025488699392",
          "name_en" : "zonghe8830",
          "name_ch" : "zonghe8830(testweidu830)",
          "description" : "",
          "create_by" : "abc",
          "data_type" : "STRING",
          "l1_id" : null,
          "l2_id" : null,
          "l3_id" : "767858832738234368",
          "status" : "DRAFT",
          "atomic_index_id" : "1014195214723756032",
          "time_condition_id" : null,
          "time_field_id" : null,
          "time_field_name" : null,
          "common_conditions" : [ ],
          "dimension_groups" : [ {
            "group_id" : "1014194851576721408",
            "role" : null,
            "dimension_id" : "1014194851576721408",
            "hierarchies_id" : null,
            "ordinal" : 1,
            "group_name" : "testweidu830",
            "group_code" : "testweidu830",
            "biz_type" : "DIMENSION",
            "hierarchies" : null,
            "l1" : null,
            "l2" : null,
            "l3" : null,
            "l1_id" : null,
            "l2_id" : null,
            "l3_id" : null,
            "dw_type" : null,
            "id" : "1014197025585168384"
          } ],
          "monitor" : null,
          "atomic_index" : {
            "id" : "1014195214723756032",
            "name_en" : "zonghe8830",
            "name_ch" : "zonghe8830",
            "description" : "",
            "create_by" : null,
            "cal_exp" : "sum(${1014195020200325120}) ",
            "cal_fn_ids" : null,
            "l1_id" : null,
            "l2_id" : null,
            "l3_id" : null,
            "table_id" : "1014195020183547904",
            "tb_name" : null,
            "dw_type" : null,
            "field_ids" : [ "1014195020200325120" ],
            "field_names" : null,
            "status" : "DRAFT",
            "biz_type" : "FACT_LOGIC_TABLE",
            "create_time" : "2022-09-02T09:56:31.536+08:00",
            "update_time" : "2022-09-02T09:56:31.536+08:00",
            "l1" : null,
            "l2" : null,
            "l3" : null,
            "approval_info" : null,
            "new_biz" : null
          },
          "time_condition_name" : null,
          "create_time" : "2022-08-30T15:36:54+08:00",
          "update_time" : "2022-08-30T15:36:54+08:00",
          "l1" : null,
          "l2" : null,
          "l3" : null,
          "summary_table_id" : null,
          "approval_info" : null,
          "new_biz" : null
        },
        "id" : "1014197025488699392",
        "tables" : [ ],
        "biz_type" : "DERIVATIVE_INDEX",
        "parent_ids" : [ ],
        "child_ids" : [ "1014195214723756032" ]
      } ],
      "total" : 2,
      "groups" : {
        "1014194851576721408" : {
          "dimension_groups" : [ {
            "group_id" : "1014194851576721408",
            "role" : null,
            "dimension_id" : "1014194851576721408",
            "hierarchies_id" : null,
            "ordinal" : 1,
            "group_name" : "testweidu830",
            "group_code" : "testweidu830",
            "biz_type" : "DIMENSION",
            "hierarchies" : null,
            "l1" : null,
            "l2" : null,
            "l3" : null,
            "l1_id" : null,
            "l2_id" : null,
            "l3_id" : null,
            "dw_type" : null,
            "id" : "1014197025585168384"
          } ],
          "ids" : [ "1014197025488699392" ]
        }
      },
      "links" : {
        "vo" : {
          "id" : "1014197025488699392",
          "name_en" : "zonghe8830",
          "name_ch" : "zonghe8830(testweidu830)",
          "description" : "",
          "create_by" : "abc",
          "data_type" : "STRING",
          "l1_id" : null,
          "l2_id" : null,
          "l3_id" : "767858832738234368",
          "status" : "DRAFT",
          "atomic_index_id" : "1014195214723756032",
          "time_condition_id" : null,
          "time_field_id" : null,
          "time_field_name" : null,
          "common_conditions" : [ ],
          "dimension_groups" : [ {
            "group_id" : "1014194851576721408",
            "role" : null,
            "dimension_id" : "1014194851576721408",
            "hierarchies_id" : null,
            "ordinal" : 1,
            "group_name" : "testweidu830",
            "group_code" : "testweidu830",
            "biz_type" : "DIMENSION",
            "hierarchies" : null,
            "l1" : null,
            "l2" : null,
            "l3" : null,
            "l1_id" : null,
            "l2_id" : null,
            "l3_id" : null,
            "dw_type" : null,
            "id" : "1014197025585168384"
          } ],
          "monitor" : null,
          "atomic_index" : {
            "id" : "1014195214723756032",
            "name_en" : "zonghe8830",
            "name_ch" : "zonghe8830",
            "description" : "",
            "create_by" : null,
            "cal_exp" : "sum(${1014195020200325120}) ",
            "cal_fn_ids" : null,
            "l1_id" : null,
            "l2_id" : null,
            "l3_id" : null,
            "table_id" : "1014195020183547904",
            "tb_name" : null,
            "dw_type" : null,
            "field_ids" : [ "1014195020200325120" ],
            "field_names" : null,
            "status" : "DRAFT",
            "biz_type" : "FACT_LOGIC_TABLE",
            "create_time" : "2022-09-02T09:56:31.536+08:00",
            "update_time" : "2022-09-02T09:56:31.536+08:00",
            "l1" : null,
            "l2" : null,
            "l3" : null,
            "approval_info" : null,
            "new_biz" : null
          },
          "time_condition_name" : null,
          "create_time" : "2022-08-30T15:36:54+08:00",
          "update_time" : "2022-08-30T15:36:54+08:00",
          "l1" : null,
          "l2" : null,
          "l3" : null,
          "summary_table_id" : null,
          "approval_info" : null,
          "new_biz" : null
        },
        "id" : "1014197025488699392",
        "tables" : [ ],
        "biz_type" : "DERIVATIVE_INDEX",
        "parent_ids" : [ ],
        "child_ids" : [ "1014195214723756032" ]
      }
    }
  }
}
```
**状态码：400**
BadRequest
```
{
  "error_code" : "DS.60xx",
  "error_msg" : "The user request is illegal."
}
```
**状态码：401**
Unauthorized
```
{
  "error_code" : "DS.60xx",
  "error_msg" : "User authentication failed."
}
```
**状态码：403**
Forbidden
```
{
  "error_code" : "DS.60xx",
  "error_msg" : "The user does not have permission to call this API."
}
```
#### 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.dataartsstudio.v1.region.DataArtsStudioRegion;
  import com.huaweicloud.sdk.dataartsstudio.v1.*;
  import com.huaweicloud.sdk.dataartsstudio.v1.model.*;
  public class ListMetricRelationsSolution {
      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);
          DataArtsStudioClient client = DataArtsStudioClient.newBuilder()
                  .withCredential(auth)
                  .withRegion(DataArtsStudioRegion.valueOf("<YOUR REGION>"))
                  .build();
          ListMetricRelationsRequest request = new ListMetricRelationsRequest();
          request.withId("{id}");
          try {
              ListMetricRelationsResponse response = client.listMetricRelations(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 huaweicloudsdkdataartsstudio.v1.region.dataartsstudio_region import DataArtsStudioRegion
  from huaweicloudsdkcore.exceptions import exceptions
  from huaweicloudsdkdataartsstudio.v1 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 = DataArtsStudioClient.new_builder() \
          .with_credentials(credentials) \
          .with_region(DataArtsStudioRegion.value_of("<YOUR REGION>")) \
          .build()
      try:
          request = ListMetricRelationsRequest()
          request.id = "{id}"
          response = client.list_metric_relations(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"
      dataartsstudio "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dataartsstudio/v1"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dataartsstudio/v1/model"
      region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dataartsstudio/v1/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, err := basic.NewCredentialsBuilder().
          WithAk(ak).
          WithSk(sk).
          WithProjectId(projectId).
          SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      hcClient, err := dataartsstudio.DataArtsStudioClientBuilder().
           WithRegion(region.ValueOf("<YOUR REGION>")).
           WithCredential(auth).
           SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      client := dataartsstudio.NewDataArtsStudioClient(hcClient)
      request := &model.ListMetricRelationsRequest{}
  request.Id = "{id}"
  response, err := client.ListMetricRelations(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/DataArtsStudio/sdk?api=ListMetricRelations)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 | Success，返回data数据是MetricRelationVOList。 |
| 400 | BadRequest                             |
| 401 | Unauthorized                           |
| 403 | Forbidden                              |