public CacheRegistrationIndexModule(IMirrorService mirror)
{
this._mirror = mirror ?? throw new ArgumentNullException(nameof(mirror));
this.Get("cache/v3/registration/{id}/index.json", async(req, res, routeData) =>
{
string id = routeData.As <string>("id");
// Documentation: https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource
var upstreamPackages = (await _mirror.FindUpstreamMetadataAsync(id, CancellationToken.None)).ToList();
var versions = upstreamPackages.Select(p => p.Identity.Version).ToList();
if (!upstreamPackages.Any())
{
res.StatusCode = 404;
return;
}
// TODO: Paging of registration items.
// "Un-paged" example: https://api.nuget.org/v3/registration3/newtonsoft.json/index.json
// Paged example: https://api.nuget.org/v3/registration3/fake/index.json
await res.AsJson(new
{
Count = upstreamPackages.Count,
TotalDownloads = upstreamPackages.Sum(p => p.DownloadCount),
Items = new[]
{
new RegistrationIndexItem(
packageId: id,
items: upstreamPackages.Select(p => ToRegistrationIndexLeaf(req, p)).ToList(),
lower: versions.Min().ToNormalizedString(),
upper: versions.Max().ToNormalizedString()
),
}
});
});
this.Get("cache/v3/registration/{id}/{version}.json", async(req, res, routeData) =>
{
string id = routeData.As <string>("id");
string version = routeData.As <string>("version");
if (!NuGetVersion.TryParse(version, out var nugetVersion))
{
res.StatusCode = 400;
return;
}
// Allow read-through caching to happen if it is confiured.
await _mirror.MirrorAsync(id, nugetVersion, CancellationToken.None);
var package = await _mirror.FindAsync(new PackageIdentity(id, nugetVersion));
if (package == null)
{
res.StatusCode = 404;
return;
}
// Documentation: https://docs.microsoft.com/en-us/nuget/api/registration-base-url-resource
var result = new RegistrationLeaf(
registrationUri: req.PackageRegistration(id, nugetVersion, "cache"),
listed: package.IsListed,
downloads: package.DownloadCount.GetValueOrDefault(),
packageContentUri: req.PackageDownload(id, nugetVersion, "cache"),
published: package.Published.GetValueOrDefault(),
registrationIndexUri: req.PackageRegistration(id, "cache"));
await res.AsJson(result);
});
}