筆記下如何將圖片從對應網址下載並轉存到API
直上 Code
private async Task Save(
string originUrl,
string targetUrl,
string filename,
string token,
CancellationToken cancellationToken)
{
// download file from originUrl
var uri = new UriBuilder(originUrl);
using var client = _clientFactory.CreateClient();
var jpg = await client.GetAsync(uri.Uri, cancellationToken);
jpg.Content.Headers.Add(
"Content-Disposition",
"form-data; name=\"file\"; filename=\"" + filename + "\"");
// MultipartFormDataContent
using var content =
new MultipartFormDataContent {{jpg.Content, "file", filename}};
// RequestHeaders
var boundary = DateTime.Now.Ticks.ToString("X");
client.DefaultRequestHeaders.Add("ContentType",
"multipart/form-data;charset=utf-8;boundary=" + boundary);
// OAuth
client.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue("Bearer",token);
uri = new UriBuilder(targetUrl);
var response = await client.PostAsync(uri.Uri, content, cancellationToken);
if (response != null && response.IsSuccessStatusCode)
Console.Write(await response.Content.ReadAsStringAsync());
else Console.Write("Error...");
}
