/// <inheritdoc />
/// <exception cref="WebException">Thrown if the operation is unsuccessful.</exception>
public override async Task <Package> FetchAsync(string packageId, string version)
{
if (string.IsNullOrWhiteSpace(packageId))
{
throw new ArgumentException("A value of null, empty, or whitespace is not valid.", nameof(packageId));
}
if (string.IsNullOrWhiteSpace(version))
{
throw new ArgumentException("A value of null, empty, or whitespace is not valid.", nameof(version));
}
var(foundNpmPackage, error) = await Client.NpmGetPackageAsync(packageId, version);
if (error != null)
{
if (error.StatusCode == HttpStatusCode.NotFound)
{
return(null);
}
throw new WebException(error.ErrorMessage);
}
var foundPackage = foundNpmPackage.ToPackage();
var(content, downloadError) = await Client.NpmDownloadPackageAsync(foundPackage);
if (downloadError != null)
{
throw new WebException(downloadError.ErrorMessage);
}
foundPackage.Content = content;
return(foundPackage);
}
private static async Task <Package> ConvertNpmPackageVersionToPackageAsync(NpmClient client, NpmPackageAllVersions npmPackageAllVersions)
{
var(npmPackage, error) = await client.NpmGetPackageAsync(GetNpmName(npmPackageAllVersions.Package_Name, npmPackageAllVersions.Scope_Name), npmPackageAllVersions.Version_Text);
if (error != null)
{
throw new WebException(error.ErrorMessage);
}
var match = Regex.Match(npmPackage.Id, prereleaseRegEx);
var prerelease = match.Groups["Prerelease"].Value.Any();
var package = new Package
{
Id = ConvertNpmPackageNameToId(npmPackageAllVersions),
Version = npmPackageAllVersions.Version_Text,
PackageDownloadUrl = npmPackage.Dist[NpmPackage.ArchiveKey],
PackageHash = npmPackage.Dist[NpmPackage.HashKey],
IsPrerelease = prerelease
};
return(package);
}