/// <summary>
/// Call the B2 'Download File By Name' API (see https://www.backblaze.com/b2/docs/b2_download_file_by_name.html)
/// </summary>
/// <param name="downloadUrl"></param>
/// <param name="authorizationToken"></param>
/// <param name="bucketName"></param>
/// <param name="fileName"></param>
/// <param name="rangeLower"></param>
/// <param name="rangeUpper"></param>
/// <returns></returns>
public async Task <B2File> DownloadFileByName(string downloadUrl, string authorizationToken, string bucketName, string fileName, long?rangeLower = null, long?rangeUpper = null)
{
Trace(() => $"DownloadFileByName: downloadUrl={downloadUrl}, authorizationToken={authorizationToken}, bucketName={bucketName}, fileName={fileName}, rangeLower={rangeLower}, rangeUpper={rangeUpper}");
var request = new HttpRequestMessage(HttpMethod.Get, $"{downloadUrl}/file/{bucketName}/{fileName}")
.WithAuthorization(authorizationToken)
.WithRange(rangeLower, rangeUpper);
var response = await httpClient.SendAsync(request).ConfigureAwait(false);
var responseStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
ThrowIfFailure(response, responseStream);
var f = new B2File(responseStream, response.Headers, response.Content.Headers);
Trace(() => $"DownloadFileByName completed: id={f.id}, name={f.name}, length={f.length}, contentType={f.contentType}, sha1={f.sha1}, attributes=[{ToString(f.attributes)}]");
return(f);
}
/// <summary>
/// Call the B2 'Download File By ID' API (see https://www.backblaze.com/b2/docs/b2_download_file_by_id.html)
/// </summary>
/// <param name="apiUrl"></param>
/// <param name="authorizationToken"></param>
/// <param name="rangeLower"></param>
/// <param name="rangeUpper"></param>
/// <param name="fileId"></param>
/// <returns></returns>
public async Task <B2File> DownloadFileById(string downloadUrl, string authorizationToken, string fileId, long?rangeLower = null, long?rangeUpper = null)
{
Trace(() => $"DownloadFileById: downloadUrl={downloadUrl}, authorizationToken={authorizationToken}, fileId={fileId}, rangeLower={rangeLower}, rangeUpper={rangeUpper}");
var request = new HttpRequestMessage(HttpMethod.Post, $"{downloadUrl}/b2api/v2/b2_download_file_by_id")
.WithAuthorization(authorizationToken)
.WithJsonSerializedContent(new DownloadFileByIdRequest {
fileId = fileId
})
.WithRange(rangeLower, rangeUpper);
var response = await httpClient.SendAsync(request).ConfigureAwait(false);
var responseStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
ThrowIfFailure(response, responseStream);
var f = new B2File(responseStream, response.Headers, response.Content.Headers);
Trace(() => $"DownloadFileById completed: id={f.id}, name={f.name}, length={f.length}, contentType={f.contentType}, sha1={f.sha1}, attributes=[{ToString(f.attributes)}]");
return(f);
}