Backup (NuGet) Packages for All Azure DevOps Organization Feeds with PowerShell

This quick blog post demonstrates how to automate the backup of all packages from all organization feeds on Azure DevOps using a scheduled pipeline and a PowerShell script. The script leverages the Azure DevOps REST API to enumerate feeds and download every package version to a network share.

It handles skipping already downloaded packages and for our case can handle checking several feeds and ~10,000 packages and versions in less than one minute when no new packages found. No further details are provided here, but the script is available below, I thought perhaps someone might find it useful as a reference and the code is pretty straighforward.

Note that this only works for organization feeds not project feeds.

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trigger: none

schedules:
  # 01:00 UTC every Sunday
  - cron: "0 1 * * 0"
    displayName: Weekly NuGet Backup
    branches:
      include:
        - main
    always: true

pool:
  name: 'Default'

variables:
  ORGANIZATION_NAME: 'YOURORGNAME'
  NETWORK_PATH: '\\YOURLOCALPATH' # UNC path to your network share

steps:
  - task: PowerShell@2
    displayName: Download NuGet packages from all feeds
    env:
      SYSTEM_ACCESSTOKEN: $(System.AccessToken)
    inputs:
      targetType: inline
      script: |
        $ErrorActionPreference = 'Stop'

        $org = "$(ORGANIZATION_NAME)"
        $networkBase = "$(NETWORK_PATH)"
        $token = $env:SYSTEM_ACCESSTOKEN
        $headers = @{ Authorization = "Bearer $token" }

        # Get all feeds
        $feedsUrl = "https://feeds.dev.azure.com/$org/_apis/packaging/feeds?api-version=7.1-preview.1"
        Write-Host "Fetching all feeds from $feedsUrl"
        $feedsResp = Invoke-RestMethod -Uri $feedsUrl -Headers $headers
        $feeds = $feedsResp.value

        Write-Host "Feeds count $($feeds.Count)"
        if ($feeds.Count -eq 0) {
          Write-Host "No feeds found."
          exit 0
        }

        foreach ($feed in $feeds) {
          $feedName = $feed.name
          $feedId = $feed.id
          $feedPath = Join-Path $networkBase $feedName

          Write-Host "=================================================================="
          Write-Host "====== '$($feed.name)'"
          Write-Host "=================================================================="

          $fetchBaseUrl = "https://feeds.dev.azure.com/$org/_apis/packaging/feeds/$feedId/packages?protocolType=NuGet&api-version=7.1"
          $downloadBaseUrl = "https://pkgs.dev.azure.com/$org/_apis/packaging/feeds/$feedId/nuget/packages/"
          $pageSize = 50000
          $skip = 0
          $allPkgs = @()
          $page = 1

          # Fetch package names and versions from the feed
          Write-Host "Fetching packages from feed '$feedName'..."

          while ($true) {
            $url = "$fetchBaseUrl&includeAllVersions=true&`$top=$pageSize&`$skip=$skip"
            Write-Host "Requesting page $($page) from $($url)"
            $resp = Invoke-RestMethod -Uri $url -Headers $headers

            if ($resp.value.Count -eq 0) {
              break
            }

            $allPkgs += $resp.value
            Write-Host "Fetched $($resp.value.Count) packages in page $($page)."
            $skip += $resp.value.Count
            $page++
          }

          Write-Host "Package names found $($allPkgs.Count) in feed '$feedName'"

          if ($allPkgs.Count -eq 0) {
            Write-Host "WARNING No packages found in feed '$feedName'."
            continue
          }

          # Ensure the target directory exists
          if (-not (Test-Path $feedPath)) {
            Write-Host "Creating directory '$feedPath'..."
            New-Item -ItemType Directory -Path $feedPath -Force | Out-Null
          } else {
            Write-Host "Directory '$feedPath' already exists."
          }

          # Download packages (skip already exists)
          $totalPackagesCount = 0
          foreach ($pkg in $allPkgs) {
            Write-Host "====== '$($pkg.name)' versions found $($pkg.versions.Count) ======"
            foreach ($ver in $pkg.versions) {
              $nupkgFileName = "$($pkg.name).$($ver.version).nupkg"
              $nupkgPath = Join-Path $feedPath $nupkgFileName

              if (Test-Path $nupkgPath) {
                Write-Host "Skipping '$($nupkgPath)' (already exists)"
                continue
              }

              $downloadUrl = "$($downloadBaseUrl)$($pkg.name)/versions/$($ver.version)/content?api-version=7.1-preview"
              Write-Host "Downloading '$($nupkgFileName)' to '$feedPath' from '$($downloadUrl)'"
              Invoke-RestMethod -Uri $downloadUrl -Headers $headers -OutFile $nupkgPath
            }
            $totalPackagesCount += $pkg.versions.Count
          }
          Write-Host "Total packages found (already downloaded or downloaded) $($totalPackagesCount) in feed '$feedName'"
        }

That’s all!

2025.05.15