Querying the Current Producer List of a Topic
Function
This API is used to query the current producer list of a topic.
Calling Method
For details, see Calling APIs.
URI
GET /v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/producers
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Parameter description: Project ID. For details, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A |
instance_id |
Yes |
String |
Parameter description: Instance ID. To obtain it, log in to the Kafka console and find the instance ID on the Kafka instance details page. Constraints: N/A Value range: N/A Default value: N/A |
topic |
Yes |
String |
Parameter description: Topic. Constraints: N/A Value range: N/A Default value: N/A |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
offset |
No |
Integer |
Parameter description: Offset. The records after this offset will be queried. Constraints: N/A Value range: ≥ 0 Default value: N/A |
limit |
No |
Integer |
Parameter description: Maximum number of records that can be returned. Constraints: N/A Value range: 1–50 Default value: N/A |
Request Parameters
None
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
total |
Integer |
Parameter description: Total number of records. Value range: 0–10,000 |
producers |
Array of producers objects |
Parameter description: Producer list. |
Example Requests
Querying the current producer list of a topic
GET https://{endpoint}/v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/producers?offset=0&limit=10
Example Responses
Status code: 200
The current producer list of the topic is queried successfully.
{
"total" : 3,
"producers" : [ {
"producer_address" : "192.0.0.149:40443",
"broker_address" : "192.0.0.146:9092",
"join_time" : 1687204743328
}, {
"producer_address" : "192.0.0.149:13807",
"broker_address" : "192.0.0.80:9092",
"join_time" : 1687204745939
}, {
"producer_address" : "192.0.0.149:31876",
"broker_address" : "192.0.0.71:9092",
"join_time" : 1687204744934
} ]
}
SDK Sample Code
The SDK sample code is as follows.
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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 ListTopicProducersSolution {
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();
ListTopicProducersRequest request = new ListTopicProducersRequest();
request.withInstanceId("{instance_id}");
request.withTopic("{topic}");
try {
ListTopicProducersResponse response = client.listTopicProducers(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());
}
}
}
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 |
# coding: utf-8
import os
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 = os.environ["CLOUD_SDK_AK"]
sk = os.environ["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 = ListTopicProducersRequest()
request.instance_id = "{instance_id}"
request.topic = "{topic}"
response = client.list_topic_producers(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 |
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.ListTopicProducersRequest{}
request.InstanceId = "{instance_id}"
request.Topic = "{topic}"
response, err := client.ListTopicProducers(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
}
|
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 |
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 ListTopicProducersSolution {
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();
ListTopicProducersRequest request = new ListTopicProducersRequest();
request.withInstanceId("{instance_id}");
request.withTopic("{topic}");
try {
ListTopicProducersResponse response = client.listTopicProducers(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());
}
}
}
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 |
# coding: utf-8
import os
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 = os.environ["CLOUD_SDK_AK"]
sk = os.environ["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 = ListTopicProducersRequest()
request.instance_id = "{instance_id}"
request.topic = "{topic}"
response = client.list_topic_producers(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 |
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.ListTopicProducersRequest{}
request.InstanceId = "{instance_id}"
request.Topic = "{topic}"
response, err := client.ListTopicProducers(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
}
|
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
Status Code |
Description |
---|---|
200 |
The current producer list of the topic is queried successfully. |
Error Codes
See Error Codes.
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