DevOps Wiki: How to enable download of attachment

Copper Contributor

Jul 01, 2026

I got it working, kind of. I open the files in a new tab. short answer:

    <a href="https://dev.azure.com/[PROJECT]/[ID]/_apis/git/repositories/[WIKI_REPO_ID]/Items?path=/.attachments/[filename]" target="_blank">[filename]</a>

longer answer. I wrote this code to download all swagger contracts from several repositories, upload them as attachments and create a wiki page that links to them:

    response = await WikiHttpClient.CreateAttachmentAsync(....);
    var filename = response?.Attachment.Path.Split("/").Last();
    var path = $"{basePath}{filename}";

    // basepath is something like this
    // https://dev.azure.com/[PROJECT]/[ID]/_apis/git/repositories/[WIKI_REPO_ID]/Items?path=/.attachments/

then in markdown you can link to the path:

    var sb = new StringBuilder();
    sb.AppendLine($" <a href=\"{path}\" target=\"_blank\">{displayName}</a> ");

some downsides:

- the filenames have to be unique and cannot be overwritten. I used the date as a suffix.
- you'll have to clean up duplicates manually with a pull request for instance.
- the filetypes (extensions) are limited. so i uploaded my YAML files as a text file with .txt extension

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DevOps Wiki: How to enable download of attachment