Help Center/ CodeArts Req/ API Reference/ API/ Work Items of the Scrum Project/ This API is used to download work item attachments.
Updated on 2025-09-10 GMT+08:00

This API is used to download work item attachments.

Function

This API is used to download work item attachments.

Calling Method

For details, see Calling APIs.

URI

GET /v4/projects/{project_id}/issues/{issue_id}/attachments/{attachment_id}

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition:

32-character UUID of a project, which uniquely identifies a project. Obtain the value of this parameter from the project_id field in the response body of the Querying the Project List API.

Constraints:

Regular expression: [A-Za-z0-9]{32}

Options:

N/A

Default value:

N/A

issue_id

Yes

Integer

Definition:

Work item ID, which can be obtained from the Performing Advanced Query of Work Items API. The value of the id field in the response message body is the work item ID.

Constraints:

The value must contain 1 to 10 digits.

Value range:

Minimum length: 1 character. Maximum length: 10 characters.

Default value:

N/A

attachment_id

Yes

String

Definition:

Attachment ID. You can obtain the ID using the Querying Work Item Details API. The attachment_id in the accessories list in the return information is the attachment ID.

Constraints:

Regular expression: [1-9][0-9]{0,10}

Value range:

N/A

Default value:

N/A

Request Parameters

None

Response Parameters

Status code: 200

Table 2 Response body parameters

Parameter

Type

Description

-

File

Attachment

Status code: 400

Table 3 Response body parameters

Parameter

Type

Description

error_code

String

Error Codes

error_msg

String

Description

Status code: 401

Table 4 Response body parameters

Parameter

Type

Description

error_code

String

Error Codes

error_msg

String

Description

Example Requests

Get https://{endpoint}v4/projects/f7a67aee4c034fd6944fd5f769e89042/issues/5667740/attachments/72372

Example Responses

Status code: 400

Bad Request

{
  "error_code" : "PM.02174103",
  "error_msg" : "No permission."
}

SDK Sample Code

The SDK sample code is as follows.

Java

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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.projectman.v4.region.ProjectManRegion;
import com.huaweicloud.sdk.projectman.v4.*;
import com.huaweicloud.sdk.projectman.v4.model.*;


public class DownloadAttachmentSolution {

    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);

        ProjectManClient client = ProjectManClient.newBuilder()
                .withCredential(auth)
                .withRegion(ProjectManRegion.valueOf("<YOUR REGION>"))
                .build();
        DownloadAttachmentRequest request = new DownloadAttachmentRequest();
        request.withProjectId("{project_id}");
        request.withIssueId("{issue_id}");
        request.withAttachmentId("{attachment_id}");
        try {
            DownloadAttachmentResponse response = client.downloadAttachment(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

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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkprojectman.v4.region.projectman_region import ProjectManRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkprojectman.v4 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 = ProjectManClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(ProjectManRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = DownloadAttachmentRequest()
        request.project_id = "{project_id}"
        request.issue_id = "{issue_id}"
        request.attachment_id = "{attachment_id}"
        response = client.download_attachment(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

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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    projectman "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/projectman/v4"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/projectman/v4/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/projectman/v4/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 := projectman.NewProjectManClient(
        projectman.ProjectManClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.DownloadAttachmentRequest{}
	request.ProjectId = "{project_id}"
	request.IssueId = "{issue_id}"
	request.AttachmentId = "{attachment_id}"
	response, err := client.DownloadAttachment(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

Definition:

Binary file of the work item attachment.

400

Bad Request

401

Unauthorized

Error Codes

See Error Codes.