# 添加密钥标签 - CreateKmsTag
#### 功能介绍
- 功能介绍：添加密钥标签。
  
 
#### 调用方法
请参见[如何调用API](https://support.huaweicloud.com/api-dew/dew_02_0002.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-dew/dew_02_0308.html)。
- 如果使用身份策略授权，需具备如下身份策略权限。
  
  | 授权项               | 访问级别    | 资源类型（\*为必须） | 条件键                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | 别名                | 依赖的授权项 |
  |:---|:---|:---|:---|:---|:---|
  | kms:cmk:createTag | Tagging | KeyId \*    | - kms:KeyOrigin   - kms:KeySpec   - kms:KeyUsage   - kms:MultiRegionKeyType   - g:EnterpriseProjectId   - g:ResourceTag/\<tag-key\>    | kms:cmkTag:create | -      |
  | kms:cmk:createTag | Tagging | -           | - g:RequestTag/\<tag-key\>   - g:TagKeys                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | kms:cmkTag:create | -      |
     
  
 
#### URI
POST /v1.0/{project_id}/kms/{key_id}/tags
表1路径参数 
| 参数         | 是否必选 | 参数类型   | 描述                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|:---|:---|:---|:---|
| project_id | 是    | String | **参数解释：** 项目ID，用于唯一标识用户项目。可参考[获取项目ID](https://support.huaweicloud.com/api-dew/dew_02_0009.html)获取，以IAM服务接口返回值为准 **约束限制：** 不涉及 **取值范围：** 字符长度32-32。 **默认取值：** 不涉及                                                                                                                                                                                                                                                                                           |
| key_id     | 是    | String | **参数解释：** 密钥ID **约束限制：** - 36字节ID   - 满足正则匹配"\^\[0-9a-z\]{8}-\[0-9a-z\]{4}-\[0-9a-z\]{4}-\[0-9a-z\]{4}-\[0-9a-z\]{12}$"    **取值范围：** 不涉及 **默认取值：** 不涉及 |
   
#### 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 | **参数解释：** 用户Token。 通过调用IAM服务查询用户Token接口获取（响应消息头中X-Subject-Token的值），以IAM服务查询用户Token接口为准 **约束限制：** 不涉及 **取值范围：** 不涉及 **默认取值：** 不涉及 |
   
表3请求Body参数 
| 参数       | 是否必选 | 参数类型                                             | 描述                                                                                                                                                                                                                                                                                                                                          |
|:---|:---|:---|:---|
| tag      | 否    | [TagItem] object | 标签。                                                                                                                                                                                                                                                                                                                                         |
| sequence | 否    | String                                           | **参数解释：** 请求消息序列号，36字节序列号，例如：919c82d4-8046-4722-9094-35c3c6524cff **约束限制：** 不涉及 **取值范围：** 不涉及 **默认取值：** 不涉及 |
   
 表4TagItem 
| 参数    | 是否必选 | 参数类型   | 描述                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|:---|:---|:---|:---|
| key   | 是    | String | **参数解释：** 标签键 **约束限制：** - 最大长度36个unicode字符   - 不能包含非打印字符"ASCII(0-31)"、"\*"、"\<"、"\>"、"\\"、"="   - 不能为空    **取值范围：** 不涉及 **默认取值：** 不涉及 |
| value | 否    | String | **参数解释：** 标签值 **约束限制：** - 最大长度43个unicode字符   - 不能包含非打印字符"ASCII(0-31)"、"\*"、"\<"、"\>"、"\\"、"="   - 不能为空    **取值范围：** 不涉及 **默认取值：** 不涉及 |
   
#### 响应参数
**状态码：204**
无
#### 请求示例
添加密钥标签，标签键为"DEV"，标签值为"DEV1"。
```
{
  "tag" : {
    "key" : "DEV",
    "value" : "DEV1"
  }
}
```
#### 响应示例
无
#### SDK代码示例
SDK代码示例如下。
- [Java]
  添加密钥标签，标签键为"DEV"，标签值为"DEV1"。
  ```
  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.kms.v2.region.KmsRegion;
  import com.huaweicloud.sdk.kms.v2.*;
  import com.huaweicloud.sdk.kms.v2.model.*;
  public class CreateKmsTagSolution {
      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);
          KmsClient client = KmsClient.newBuilder()
                  .withCredential(auth)
                  .withRegion(KmsRegion.valueOf("<YOUR REGION>"))
                  .build();
          CreateKmsTagRequest request = new CreateKmsTagRequest();
          request.withKeyId("{key_id}");
          CreateKmsTagRequestBody body = new CreateKmsTagRequestBody();
          TagItem tagbody = new TagItem();
          tagbody.withKey("DEV")
              .withValue("DEV1");
          body.withTag(tagbody);
          request.withBody(body);
          try {
              CreateKmsTagResponse response = client.createKmsTag(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]
  添加密钥标签，标签键为"DEV"，标签值为"DEV1"。
  ```
  # coding: utf-8
  import os
  from huaweicloudsdkcore.auth.credentials import BasicCredentials
  from huaweicloudsdkkms.v2.region.kms_region import KmsRegion
  from huaweicloudsdkcore.exceptions import exceptions
  from huaweicloudsdkkms.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 = KmsClient.new_builder() \
          .with_credentials(credentials) \
          .with_region(KmsRegion.value_of("<YOUR REGION>")) \
          .build()
      try:
          request = CreateKmsTagRequest()
          request.key_id = "{key_id}"
          tagbody = TagItem(
              key="DEV",
              value="DEV1"
          )
          request.body = CreateKmsTagRequestBody(
              tag=tagbody
          )
          response = client.create_kms_tag(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]
  添加密钥标签，标签键为"DEV"，标签值为"DEV1"。
  ```
  package main
  import (
  "fmt"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
      kms "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/model"
      region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/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, err := basic.NewCredentialsBuilder().
          WithAk(ak).
          WithSk(sk).
          WithProjectId(projectId).
          SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      hcClient, err := kms.KmsClientBuilder().
           WithRegion(region.ValueOf("<YOUR REGION>")).
           WithCredential(auth).
           SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      client := kms.NewKmsClient(hcClient)
      request := &model.CreateKmsTagRequest{}
  request.KeyId = "{key_id}"
  valueTag:= "DEV1"
  tagbody := &model.TagItem{
  Key: "DEV",
  Value: &valueTag,
  }
  request.Body = &model.CreateKmsTagRequestBody{
  Tag: tagbody,
  }
  response, err := client.CreateKmsTag(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/KMS/sdk?api=CreateKmsTag)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         |
|:---|:---|
| 204 | No Content |
   
#### 错误码
请参见[错误码](https://support.huaweicloud.com/api-dew/ErrorCode.html)。
