Introduction

Azure DevOps is a cloud-based set of tools and services designed to support software development projects. One of its core functionalities is the ability to create and manage build pipelines, which can automatically trigger builds and produce build artifacts. These artifacts can then be downloaded for deployment or further testing. In some cases, you may need to download the latest build artifacts programmatically, either for automation purposes or integration with other systems. Here, we will explore how this can be achieved using REST APIs.

Prerequisites

To download build artifacts from Azure DevOps programmatically, ensure you have the following:

1. Access to Azure DevOps: You need an active Azure DevOps account and sufficient permissions to access the desired project and its pipelines.
2. Personal Access Token (PAT): Required for authentication when making API calls.
3. Programming Environment: Tools like Python, PowerShell, or any language capable of making HTTP requests.

Understanding Build Artifacts

Build artifacts are the outputs produced after a successful build. In Azure DevOps, build artifacts can include compiled code, binaries, packages, etc. Each build run can generate multiple artifacts, and these can be accessed and downloaded via the Azure DevOps REST API.

Azure DevOps REST API

Azure DevOps provides a comprehensive REST API that allows interaction with build pipelines. The key endpoints used for downloading artifacts are:

• List Builds: Used to retrieve information about builds, including their status and ID.
• Get Build Artifacts: Used to list all artifacts produced by a specific build.
• Download Artifact: Used to download a specific artifact.

Steps to Download Build Artifacts

Step 1: Authenticate and Setup

Before making any API requests, you need to set up authentication using a Personal Access Token (PAT). The PAT should have the necessary permissions to access build information and download artifacts.

• Parameters:
  • `organization`: Your Azure DevOps organization name.
  • `project`: The project under which the build was triggered.
  • `definitionId`: The ID of the related build pipeline definition.
  • `$top`: Limits the number of results. Use 1 for the latest.
• Parameters:
  • `buildId`: The ID obtained from the previous step.
• Parameters:
  • `artifactName`: The specific artifact you want to download.