Querying Streams
Function
This API is used to query all the streams created by the current tenant.
During query, you need to specify the stream from which the stream list is returned and the maximum number of streams returned in a single request.
Calling Method
For details, see Calling APIs.
URI
GET /v2/{project_id}/streams
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Project ID |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
limit |
No |
Integer |
The maximum number of DIS streams to list in a single API call Minimum: 1 Maximum: 100 Default: 10 |
start_stream_name |
No |
String |
Name of the DIS stream to start the stream list with. The returned stream list does not contain this DIS stream name.If pagination query is required, this parameter is not transferred when you query data on the first page. If the value of has_more_streams is true, the query is performed on the next page. The value of start_stream_name is the name of the last stream in the query result of the first page. |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token. |
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
total_number |
Long |
Total number of all the DIS streams created by the current tenant |
stream_names |
Array of strings |
List of the streams meeting the current requests |
has_more_streams |
Boolean |
Whether there are more matching DIS streams
Default: false |
stream_info_list |
Array of StreamInfo objects |
Stream details |
Parameter |
Type |
Description |
---|---|---|
stream_name |
String |
Stream name |
create_time |
Long |
Time when the stream is created. The value is a 13-bit timestamp. |
retention_period |
Integer |
Period for storing data in units of hours |
status |
String |
Current status of the stream.
Enumeration values:
|
stream_type |
String |
Stream type
Enumeration values:
|
data_type |
String |
Source data type.
Default value: BLOB Enumeration values:
|
partition_count |
Integer |
Number of partitions. Partitions are the base throughput unit of the DIS stream. |
auto_scale_enabled |
Boolean |
Whether to enable auto scaling.
By default, auto scaling is disabled. Default: false |
auto_scale_min_partition_count |
Integer |
Minimum number of partitions for automatic scale-down when auto scaling is enabled Minimum: 1 |
auto_scale_max_partition_count |
Integer |
Maximum number of partitions for automatic scale-up when auto scaling is enabled |
tags |
Array of Tag objects |
List of stream tags |
sys_tags |
Array of SysTag objects |
Stream enterprise projects |
Parameter |
Type |
Description |
---|---|---|
key |
String |
Tag key.
Minimum: 1 Maximum: 36 |
value |
String |
Value.
Minimum: 0 Maximum: 43 |
Parameter |
Type |
Description |
---|---|---|
key |
String |
Tag key.
|
status |
String |
Enumeration values:
|
value |
String |
Value. The value is the enterprise project ID, which needs to be obtained on the enterprise management page.
|
Example Requests
Querying Streams
GET https://{Endpoint}/v2/{project_id}/streams
Example Responses
Status code: 200
Normal response
{ "total_number" : 1, "stream_names" : [ "newstream" ], "stream_info_list" : [ { "stream_id" : "8QM3Nt9YTLOwtUVYJhO", "stream_name" : "newstream", "create_time" : 1593569685875, "retention_period" : 24, "status" : "RUNNING", "stream_type" : "COMMON", "data_type" : "BLOB", "partition_count" : 1, "tags" : [ ], "auto_scale_enabled" : false, "auto_scale_min_partition_count" : 0, "auto_scale_max_partition_count" : 0 } ], "has_more_streams" : false }
SDK Sample Code
The SDK sample code is as follows.
Java
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 |
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.dis.v2.region.DisRegion; import com.huaweicloud.sdk.dis.v2.*; import com.huaweicloud.sdk.dis.v2.model.*; public class ListStreamsSolution { 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); DisClient client = DisClient.newBuilder() .withCredential(auth) .withRegion(DisRegion.valueOf("<YOUR REGION>")) .build(); ListStreamsRequest request = new ListStreamsRequest(); request.withLimit(<limit>); request.withStartStreamName("<start_stream_name>"); try { ListStreamsResponse response = client.listStreams(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
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 |
# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkdis.v2.region.dis_region import DisRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkdis.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"] credentials = BasicCredentials(ak, sk) client = DisClient.new_builder() \ .with_credentials(credentials) \ .with_region(DisRegion.value_of("<YOUR REGION>")) \ .build() try: request = ListStreamsRequest() request.limit = <limit> request.start_stream_name = "<start_stream_name>" response = client.list_streams(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
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" dis "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dis/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dis/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dis/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 := dis.NewDisClient( dis.DisClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ListStreamsRequest{} limitRequest:= int32(<limit>) request.Limit = &limitRequest startStreamNameRequest:= "<start_stream_name>" request.StartStreamName = &startStreamNameRequest response, err := client.ListStreams(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
More
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 |
Normal response |
Error Codes
See Error Codes.
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot