更新时间:2023-11-30 GMT+08:00
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创建主题

功能介绍

创建Topic,单用户默认配额为3000。高并发场景下,可能会出现Topic数量超过3000仍创建成功的情况,此为正常现象。 接口是幂等的,接口调用返回成功时,若已存在同名的Topic,返回的status code为200,否则返回的status code为201

调用方法

请参见如何调用API

URI

POST /v2/{project_id}/notifications/topics

表1 路径参数

参数

是否必选

参数类型

描述

project_id

String

项目ID。获取项目ID请参考 获取项目ID

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

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)。

表3 请求Body参数

参数

是否必选

参数类型

描述

name

String

创建topic的名字。Topic名称只能包含大写字母、小写字母、数字、-和_,且必须由大写字母、小写字母或数字开头,长度为1到255个字符。

最小长度:1

最大长度:255

display_name

String

Topic的显示名,推送邮件消息时,作为邮件发件人显示。显示名的长度为192byte或64个中文。默认值为空。

最小长度:1

最大长度:192

enterprise_project_id

String

企业项目ID。非必选参数,当企业项目开关打开时需要传入该参数。

缺省值:0

响应参数

状态码: 201

表4 响应Body参数

参数

参数类型

描述

request_id

String

请求的唯一标识ID。

topic_urn

String

Topic的唯一的资源标识,可通过查询主题列表获取该标识。

状态码: 400

表5 响应Body参数

参数

参数类型

描述

request_id

String

请求的唯一标识ID。

code

String

服务异常错误信息编码。

message

String

服务异常错误信息描述。

状态码: 403

表6 响应Body参数

参数

参数类型

描述

request_id

String

请求的唯一标识ID。

code

String

服务异常错误信息编码。

message

String

服务异常错误信息描述。

状态码: 404

表7 响应Body参数

参数

参数类型

描述

request_id

String

请求的唯一标识ID。

code

String

服务异常错误信息编码。

message

String

服务异常错误信息描述。

状态码: 500

表8 响应Body参数

参数

参数类型

描述

request_id

String

请求的唯一标识ID。

code

String

服务异常错误信息编码。

message

String

服务异常错误信息描述。

请求示例

创建名称为test_topic_v2,且显示名为testtest的主题

POST https://{SMN_Endpoint}/v2/{project_id}/notifications/topics

{
  "name" : "test_topic_v2",
  "display_name" : "testtest"
}

响应示例

状态码: 201

OK

{
  "request_id" : "6a63a18b8bab40ffb71ebd9cb80d0085",
  "topic_urn" : "urn:smn:regionId:f96188c7ccaf4ffba0c9aa149ab2bd57:test_topic_v2"
}

SDK代码示例

SDK代码示例如下。

创建名称为test_topic_v2,且显示名为testtest的主题

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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.smn.v2.region.SmnRegion;
import com.huaweicloud.sdk.smn.v2.*;
import com.huaweicloud.sdk.smn.v2.model.*;


public class CreateTopicSolution {

    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");

        ICredential auth = new BasicCredentials()
                .withAk(ak)
                .withSk(sk);

        SmnClient client = SmnClient.newBuilder()
                .withCredential(auth)
                .withRegion(SmnRegion.valueOf("cn-north-4"))
                .build();
        CreateTopicRequest request = new CreateTopicRequest();
        CreateTopicRequestBody body = new CreateTopicRequestBody();
        body.withDisplayName("testtest");
        body.withName("test_topic_v2");
        request.withBody(body);
        try {
            CreateTopicResponse response = client.createTopic(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());
        }
    }
}

创建名称为test_topic_v2,且显示名为testtest的主题

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# coding: utf-8

from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdksmn.v2.region.smn_region import SmnRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdksmn.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.getenv("CLOUD_SDK_AK")
    sk = os.getenv("CLOUD_SDK_SK")

    credentials = BasicCredentials(ak, sk) \

    client = SmnClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(SmnRegion.value_of("cn-north-4")) \
        .build()

    try:
        request = CreateTopicRequest()
        request.body = CreateTopicRequestBody(
            display_name="testtest",
            name="test_topic_v2"
        )
        response = client.create_topic(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

创建名称为test_topic_v2,且显示名为testtest的主题

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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    smn "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/smn/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/smn/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/smn/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")

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := smn.NewSmnClient(
        smn.SmnClientBuilder().
            WithRegion(region.ValueOf("cn-north-4")).
            WithCredential(auth).
            Build())

    request := &model.CreateTopicRequest{}
	request.Body = &model.CreateTopicRequestBody{
		DisplayName: "testtest",
		Name: "test_topic_v2",
	}
	response, err := client.CreateTopic(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

更多编程语言的SDK代码示例,请参见API Explorer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

201

OK

400

Bad Request

403

Unauthorized

404

Not Found

500

Internal Server Error

错误码

请参见错误码

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