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Querying Context Logs

Function

This API is used to query logs before and after a specified log.

Calling Method

For details, see Calling APIs.

URI

POST /v2/{project_id}/groups/{log_group_id}/streams/{log_stream_id}/context

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain a project ID, see Obtaining the Project ID, Account ID, Log Group ID, and Log Stream ID.

Minimum: 32

Maximum: 32

log_group_id

Yes

String

Log group ID. For details about how to obtain a log group ID, see Obtaining the Project ID, Account ID, Log Group ID, and Log Stream ID.

Minimum: 36

Maximum: 36

log_stream_id

Yes

String

Log stream ID. For details about how to obtain a log stream ID, see Obtaining the Project ID, Account ID, Log Group ID, and Log Stream ID.

Minimum: 36

Maximum: 36

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token obtained from IAM. For details about how to obtain a user token, see Obtaining a User Token.

Minimum: 1000

Maximum: 2000

Content-Type

Yes

String

Set this parameter to application/json;charset=UTF-8.

Minimum: 30

Maximum: 30

Table 3 Request body parameters

Parameter

Mandatory

Type

Description

line_num

No

String

Sequence number of a log line. The field's value is a timestamp in nanoseconds, which must be obtained from the log result.

__time__

No

String

Time field of the custom time function. The field's value is a timestamp in milliseconds, which must be obtained from the log result. If the custom time function has been enabled for cloud structuring, use this field with the line_num field for querying log context.

backwardsSize

No

Integer

Number of logs before the start log. The value ranges from 0 to 500, and the default value is 100.

Minimum: 0

Maximum: 500

forwardsSize

No

Integer

Number of logs after the start log. The value ranges from 0 to 500, and the default value is 100.

Minimum: 0

Maximum: 500

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

logs

Array of LogContents objects

Context log information.

total_count

Integer

Total number of returned logs, including the start log specified in the request parameters.

backwards_count

Integer

Number of logs queried forward.

Minimum: 0

Maximum: 500

forwards_count

Integer

Number of logs queried backward.

Minimum: 0

Maximum: 500

isQueryComplete

Boolean

Whether the query is complete.

Table 5 LogContents

Parameter

Type

Description

content

String

Raw log data.

Minimum: 1

Maximum: 10000

line_num

String

Sequence number of a log line.

Minimum: 19

Maximum: 19

labels

Map<String,String>

Labels contained in a log event. The labels vary depending on log events.

Status code: 400

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

Minimum: 8

Maximum: 8

error_msg

String

Error message.

Status code: 500

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

Minimum: 8

Maximum: 8

error_msg

String

Error message.

Example Requests

  • Query context logs.

    POST https://{endpoint}/v2/{project_id}/groups/{log_group_id}/streams/{log_stream_id}/context
    
    {
      "line_num" : "1725154216000000000",
      "backwardsSize" : 100,
      "forwardsSize" : 100
    }
  • Query context logs and enable the custom time function for cloud structuring.

    POST https://{endpoint}/v2/{project_id}/groups/{log_group_id}/streams/{log_stream_id}/context
    
    {
      "line_num" : "1725154216000000000",
      "__time__" : "1725154216000",
      "backwardsSize" : 100,
      "forwardsSize" : 100
    }

Example Responses

Status code: 200

Response to the request for querying context log data succeeded.

{
  "total_count" : 3,
  "backwards_count" : 1,
  "forwards_count" : 2,
  "logs" : [ {
    "content" : "2024-09-01/09:30:00 this log is Error NO 1",
    "labels" : {
      "appName" : "default_appname",
      "containerName" : "CONFIG_FILE",
      "clusterName" : "CONFIG_FILE",
      "podName" : "default_procname",
      "clusterId" : "CONFIG_FILE",
      "nameSpace" : "CONFIG_FILE",
      "category" : "LTS"
    },
    "line_num" : "1725154215000000000"
  }, {
    "content" : "2024-09-01/09:30:01 this log is Error NO 1",
    "labels" : {
      "appName" : "default_appname",
      "containerName" : "CONFIG_FILE",
      "clusterName" : "CONFIG_FILE",
      "podName" : "default_procname",
      "clusterId" : "CONFIG_FILE",
      "nameSpace" : "CONFIG_FILE",
      "category" : "LTS"
    },
    "line_num" : "1725154216000000000"
  }, {
    "content" : "2024-09-01/09:30:02 this log is Error NO 1",
    "labels" : {
      "appName" : "default_appname",
      "containerName" : "CONFIG_FILE",
      "clusterName" : "CONFIG_FILE",
      "podName" : "default_procname",
      "clusterId" : "CONFIG_FILE",
      "nameSpace" : "CONFIG_FILE",
      "category" : "LTS"
    },
    "line_num" : "1725154217000000000"
  } ]
}

Status code: 400

Invalid request. Modify the request based on the description in error_msg before a retry.

{
  "error_code" : "LTS.0009",
  "error_msg" : "Failed to validate the request body"
}

SDK Sample Code

The SDK sample code is as follows.

  • Query context logs.

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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.lts.v2.region.LtsRegion;
    import com.huaweicloud.sdk.lts.v2.*;
    import com.huaweicloud.sdk.lts.v2.model.*;
    
    
    public class ListLogContextSolution {
    
        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);
    
            LtsClient client = LtsClient.newBuilder()
                    .withCredential(auth)
                    .withRegion(LtsRegion.valueOf("<YOUR REGION>"))
                    .build();
            ListLogContextRequest request = new ListLogContextRequest();
            request.withLogGroupId("{log_group_id}");
            request.withLogStreamId("{log_stream_id}");
            ListLogContextRequestBody body = new ListLogContextRequestBody();
            body.withForwardsSize(100);
            body.withBackwardsSize(100);
            body.withLineNum("1725154216000000000");
            request.withBody(body);
            try {
                ListLogContextResponse response = client.listLogContext(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());
            }
        }
    }
    
  • Query context logs and enable the custom time function for cloud structuring.

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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.lts.v2.region.LtsRegion;
    import com.huaweicloud.sdk.lts.v2.*;
    import com.huaweicloud.sdk.lts.v2.model.*;
    
    
    public class ListLogContextSolution {
    
        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);
    
            LtsClient client = LtsClient.newBuilder()
                    .withCredential(auth)
                    .withRegion(LtsRegion.valueOf("<YOUR REGION>"))
                    .build();
            ListLogContextRequest request = new ListLogContextRequest();
            request.withLogGroupId("{log_group_id}");
            request.withLogStreamId("{log_stream_id}");
            ListLogContextRequestBody body = new ListLogContextRequestBody();
            body.withForwardsSize(100);
            body.withBackwardsSize(100);
            body.withTime("1725154216000");
            body.withLineNum("1725154216000000000");
            request.withBody(body);
            try {
                ListLogContextResponse response = client.listLogContext(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());
            }
        }
    }
    
  • Query context logs.

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    # coding: utf-8
    
    import os
    from huaweicloudsdkcore.auth.credentials import BasicCredentials
    from huaweicloudsdklts.v2.region.lts_region import LtsRegion
    from huaweicloudsdkcore.exceptions import exceptions
    from huaweicloudsdklts.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 = LtsClient.new_builder() \
            .with_credentials(credentials) \
            .with_region(LtsRegion.value_of("<YOUR REGION>")) \
            .build()
    
        try:
            request = ListLogContextRequest()
            request.log_group_id = "{log_group_id}"
            request.log_stream_id = "{log_stream_id}"
            request.body = ListLogContextRequestBody(
                forwards_size=100,
                backwards_size=100,
                line_num="1725154216000000000"
            )
            response = client.list_log_context(request)
            print(response)
        except exceptions.ClientRequestException as e:
            print(e.status_code)
            print(e.request_id)
            print(e.error_code)
            print(e.error_msg)
    
  • Query context logs and enable the custom time function for cloud structuring.

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    # coding: utf-8
    
    import os
    from huaweicloudsdkcore.auth.credentials import BasicCredentials
    from huaweicloudsdklts.v2.region.lts_region import LtsRegion
    from huaweicloudsdkcore.exceptions import exceptions
    from huaweicloudsdklts.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 = LtsClient.new_builder() \
            .with_credentials(credentials) \
            .with_region(LtsRegion.value_of("<YOUR REGION>")) \
            .build()
    
        try:
            request = ListLogContextRequest()
            request.log_group_id = "{log_group_id}"
            request.log_stream_id = "{log_stream_id}"
            request.body = ListLogContextRequestBody(
                forwards_size=100,
                backwards_size=100,
                time__="1725154216000",
                line_num="1725154216000000000"
            )
            response = client.list_log_context(request)
            print(response)
        except exceptions.ClientRequestException as e:
            print(e.status_code)
            print(e.request_id)
            print(e.error_code)
            print(e.error_msg)
    
  • Query context logs.

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    package main
    
    import (
    	"fmt"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
        lts "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/model"
        region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/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 := lts.NewLtsClient(
            lts.LtsClientBuilder().
                WithRegion(region.ValueOf("<YOUR REGION>")).
                WithCredential(auth).
                Build())
    
        request := &model.ListLogContextRequest{}
    	request.LogGroupId = "{log_group_id}"
    	request.LogStreamId = "{log_stream_id}"
    	forwardsSizeListLogContextRequestBody:= int32(100)
    	backwardsSizeListLogContextRequestBody:= int32(100)
    	lineNumListLogContextRequestBody:= "1725154216000000000"
    	request.Body = &model.ListLogContextRequestBody{
    		ForwardsSize: &forwardsSizeListLogContextRequestBody,
    		BackwardsSize: &backwardsSizeListLogContextRequestBody,
    		LineNum: &lineNumListLogContextRequestBody,
    	}
    	response, err := client.ListLogContext(request)
    	if err == nil {
            fmt.Printf("%+v\n", response)
        } else {
            fmt.Println(err)
        }
    }
    
  • Query context logs and enable the custom time function for cloud structuring.

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    package main
    
    import (
    	"fmt"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
        lts "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/model"
        region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/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 := lts.NewLtsClient(
            lts.LtsClientBuilder().
                WithRegion(region.ValueOf("<YOUR REGION>")).
                WithCredential(auth).
                Build())
    
        request := &model.ListLogContextRequest{}
    	request.LogGroupId = "{log_group_id}"
    	request.LogStreamId = "{log_stream_id}"
    	forwardsSizeListLogContextRequestBody:= int32(100)
    	backwardsSizeListLogContextRequestBody:= int32(100)
    	timeListLogContextRequestBody:= "1725154216000"
    	lineNumListLogContextRequestBody:= "1725154216000000000"
    	request.Body = &model.ListLogContextRequestBody{
    		ForwardsSize: &forwardsSizeListLogContextRequestBody,
    		BackwardsSize: &backwardsSizeListLogContextRequestBody,
    		Time: &timeListLogContextRequestBody,
    		LineNum: &lineNumListLogContextRequestBody,
    	}
    	response, err := client.ListLogContext(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.

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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.lts.v2.region.LtsRegion;
    import com.huaweicloud.sdk.lts.v2.*;
    import com.huaweicloud.sdk.lts.v2.model.*;
    
    
    public class ListLogContextSolution {
    
        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);
    
            LtsClient client = LtsClient.newBuilder()
                    .withCredential(auth)
                    .withRegion(LtsRegion.valueOf("<YOUR REGION>"))
                    .build();
            ListLogContextRequest request = new ListLogContextRequest();
            request.withLogGroupId("{log_group_id}");
            request.withLogStreamId("{log_stream_id}");
            ListLogContextRequestBody body = new ListLogContextRequestBody();
            body.withForwardsSize(100);
            body.withBackwardsSize(100);
            body.withLineNum("1725154216000000000");
            request.withBody(body);
            try {
                ListLogContextResponse response = client.listLogContext(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());
            }
        }
    }
    
  • Query context logs and enable the custom time function for cloud structuring.

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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.lts.v2.region.LtsRegion;
    import com.huaweicloud.sdk.lts.v2.*;
    import com.huaweicloud.sdk.lts.v2.model.*;
    
    
    public class ListLogContextSolution {
    
        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);
    
            LtsClient client = LtsClient.newBuilder()
                    .withCredential(auth)
                    .withRegion(LtsRegion.valueOf("<YOUR REGION>"))
                    .build();
            ListLogContextRequest request = new ListLogContextRequest();
            request.withLogGroupId("{log_group_id}");
            request.withLogStreamId("{log_stream_id}");
            ListLogContextRequestBody body = new ListLogContextRequestBody();
            body.withForwardsSize(100);
            body.withBackwardsSize(100);
            body.withTime("1725154216000");
            body.withLineNum("1725154216000000000");
            request.withBody(body);
            try {
                ListLogContextResponse response = client.listLogContext(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());
            }
        }
    }
    
  • Query context logs.

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    # coding: utf-8
    
    import os
    from huaweicloudsdkcore.auth.credentials import BasicCredentials
    from huaweicloudsdklts.v2.region.lts_region import LtsRegion
    from huaweicloudsdkcore.exceptions import exceptions
    from huaweicloudsdklts.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 = LtsClient.new_builder() \
            .with_credentials(credentials) \
            .with_region(LtsRegion.value_of("<YOUR REGION>")) \
            .build()
    
        try:
            request = ListLogContextRequest()
            request.log_group_id = "{log_group_id}"
            request.log_stream_id = "{log_stream_id}"
            request.body = ListLogContextRequestBody(
                forwards_size=100,
                backwards_size=100,
                line_num="1725154216000000000"
            )
            response = client.list_log_context(request)
            print(response)
        except exceptions.ClientRequestException as e:
            print(e.status_code)
            print(e.request_id)
            print(e.error_code)
            print(e.error_msg)
    
  • Query context logs and enable the custom time function for cloud structuring.

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    # coding: utf-8
    
    import os
    from huaweicloudsdkcore.auth.credentials import BasicCredentials
    from huaweicloudsdklts.v2.region.lts_region import LtsRegion
    from huaweicloudsdkcore.exceptions import exceptions
    from huaweicloudsdklts.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 = LtsClient.new_builder() \
            .with_credentials(credentials) \
            .with_region(LtsRegion.value_of("<YOUR REGION>")) \
            .build()
    
        try:
            request = ListLogContextRequest()
            request.log_group_id = "{log_group_id}"
            request.log_stream_id = "{log_stream_id}"
            request.body = ListLogContextRequestBody(
                forwards_size=100,
                backwards_size=100,
                time__="1725154216000",
                line_num="1725154216000000000"
            )
            response = client.list_log_context(request)
            print(response)
        except exceptions.ClientRequestException as e:
            print(e.status_code)
            print(e.request_id)
            print(e.error_code)
            print(e.error_msg)
    
  • Query context logs.

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    package main
    
    import (
    	"fmt"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
        lts "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/model"
        region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/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 := lts.NewLtsClient(
            lts.LtsClientBuilder().
                WithRegion(region.ValueOf("<YOUR REGION>")).
                WithCredential(auth).
                Build())
    
        request := &model.ListLogContextRequest{}
    	request.LogGroupId = "{log_group_id}"
    	request.LogStreamId = "{log_stream_id}"
    	forwardsSizeListLogContextRequestBody:= int32(100)
    	backwardsSizeListLogContextRequestBody:= int32(100)
    	lineNumListLogContextRequestBody:= "1725154216000000000"
    	request.Body = &model.ListLogContextRequestBody{
    		ForwardsSize: &forwardsSizeListLogContextRequestBody,
    		BackwardsSize: &backwardsSizeListLogContextRequestBody,
    		LineNum: &lineNumListLogContextRequestBody,
    	}
    	response, err := client.ListLogContext(request)
    	if err == nil {
            fmt.Printf("%+v\n", response)
        } else {
            fmt.Println(err)
        }
    }
    
  • Query context logs and enable the custom time function for cloud structuring.

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    package main
    
    import (
    	"fmt"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
        lts "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/model"
        region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/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 := lts.NewLtsClient(
            lts.LtsClientBuilder().
                WithRegion(region.ValueOf("<YOUR REGION>")).
                WithCredential(auth).
                Build())
    
        request := &model.ListLogContextRequest{}
    	request.LogGroupId = "{log_group_id}"
    	request.LogStreamId = "{log_stream_id}"
    	forwardsSizeListLogContextRequestBody:= int32(100)
    	backwardsSizeListLogContextRequestBody:= int32(100)
    	timeListLogContextRequestBody:= "1725154216000"
    	lineNumListLogContextRequestBody:= "1725154216000000000"
    	request.Body = &model.ListLogContextRequestBody{
    		ForwardsSize: &forwardsSizeListLogContextRequestBody,
    		BackwardsSize: &backwardsSizeListLogContextRequestBody,
    		Time: &timeListLogContextRequestBody,
    		LineNum: &lineNumListLogContextRequestBody,
    	}
    	response, err := client.ListLogContext(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

Response to the request for querying context log data succeeded.

400

Invalid request. Modify the request based on the description in error_msg before a retry.

500

InternalServerError. The server has received the request but encountered an internal error.

Error Codes

See Error Codes.

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