更新时间:2024-03-15 GMT+08:00
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Kafka实例查询Topic

功能介绍

该接口用于查询指定Kafka实例的Topic详情。

调用方法

请参见如何调用API

URI

GET /v2/{project_id}/instances/{instance_id}/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,获取方式请参见获取项目ID

instance_id

String

实例ID。

表2 Query参数

参数

是否必选

参数类型

描述

offset

String

偏移量,表示从此偏移量开始查询, offset大于等于0。

limit

String

当次查询返回的最大实例个数,默认值为10,取值范围为1~50。

请求参数

响应参数

状态码: 200

表3 响应Body参数

参数

参数类型

描述

total

Integer

topic总数。

size

Integer

分页查询的大小。

remain_partitions

Integer

剩余分区数。

max_partitions

Integer

分区总数。

topic_max_partitions

Integer

单个topic最大占用分区数。

topics

Array of TopicEntity objects

topic列表。

表4 TopicEntity

参数

参数类型

描述

policiesOnly

Boolean

是否为默认策略。

name

String

topic名称。

replication

Integer

副本数,配置数据的可靠性。

partition

Integer

topic分区数,设置消费的并发数。

retention_time

Integer

消息老化时间。

sync_replication

Boolean

是否开启同步复制,开启后,客户端生产消息时相应的也要设置acks=-1,否则不生效,默认关闭。

sync_message_flush

Boolean

是否使用同步落盘。默认值为false。同步落盘会导致性能降低。

external_configs

Object

扩展配置。

topic_type

Integer

topic类型(0:普通Topic 1:系统(内部)Topic)。

topic_other_configs

Array of topic_other_configs objects

topic其他配置

topic_desc

String

topic描述

created_at

Long

topic创建时间

表5 topic_other_configs

参数

参数类型

描述

name

String

配置名称

valid_values

String

配置有效值

default_value

String

配置默认值

config_type

String

配置类型:dynamic/static

value

String

配置值

value_type

String

配置值类型

请求示例

查询Topic列表。

GET https://{endpoint}/v2/{project_id}/instances/{instance_id}/topics?offset=0&limit=10

响应示例

状态码: 200

查询成功。

{
  "total" : 1,
  "size" : 0,
  "topics" : [ {
    "policiesOnly" : false,
    "name" : "Topic-test01",
    "replication" : 3,
    "partition" : 3,
    "retention_time" : 72,
    "sync_replication" : "false",
    "sync_message_flush" : "false",
    "topic_other_configs" : [ {
      "name" : "max.message.bytes",
      "valid_values" : "[0...10485760]",
      "default_value" : "10485760",
      "config_type" : "dynamic",
      "value" : "10485760",
      "value_type" : "int"
    }, {
      "name" : "message.timestamp.type",
      "valid_values" : "[CreateTime, LogAppendTime]",
      "default_value" : "LogAppendTime",
      "config_type" : "dynamic",
      "value" : "LogAppendTime",
      "value_type" : "string"
    } ],
    "external_configs" : { },
    "topic_type" : 0,
    "topic_desc" : "This is a test topic",
    "created_at" : 1688112779916
  } ],
  "remain_partitions" : 294,
  "max_partitions" : 300,
  "topic_max_partitions" : 200
}

SDK代码示例

SDK代码示例如下。

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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.kafka.v2.region.KafkaRegion;
import com.huaweicloud.sdk.kafka.v2.*;
import com.huaweicloud.sdk.kafka.v2.model.*;


public class ListInstanceTopicsSolution {

    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);

        KafkaClient client = KafkaClient.newBuilder()
                .withCredential(auth)
                .withRegion(KafkaRegion.valueOf("<YOUR REGION>"))
                .build();
        ListInstanceTopicsRequest request = new ListInstanceTopicsRequest();
        request.withInstanceId("{instance_id}");
        try {
            ListInstanceTopicsResponse response = client.listInstanceTopics(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());
        }
    }
}
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# coding: utf-8

from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkkafka.v2.region.kafka_region import KafkaRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkkafka.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 = __import__('os').getenv("CLOUD_SDK_AK")
    sk = __import__('os').getenv("CLOUD_SDK_SK")
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId) \

    client = KafkaClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(KafkaRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListInstanceTopicsRequest()
        request.instance_id = "{instance_id}"
        response = client.list_instance_topics(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    kafka "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kafka/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 := kafka.NewKafkaClient(
        kafka.KafkaClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListInstanceTopicsRequest{}
	request.InstanceId = "{instance_id}"
	response, err := client.ListInstanceTopics(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

200

查询成功。

错误码

请参见错误码

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