我正在尝试使用 sonicAPI file/upload API在 C# 中。
我尝试使用 HttpClient
和 MultipartFormDataContent
将 curl 示例转换为 C# 时返回错误 400/Bad Request。
响应内容:
<?xml version="1.0" encoding="UTF-8"?>
<response>
<status code="400" />
<errors>
<error message="File upload failed: file is missing." parameter="file" error_code="10" />
</errors>
</response>
文档中显示的 curl 命令行示例:
curl https://api.sonicapi.com/file/upload?access_id=$ACCESS_ID -Ffile=@Vocals.mp3
到目前为止我编写的代码:
public async Task<HttpResponseMessage> Post(string id, string fileName)
{
string url = string.Format("http://api.sonicapi.com/file/upload?access_id={0}", id);
var stream = new FileStream(fileName, FileMode.Open);
var client = new HttpClient { Timeout = TimeSpan.FromMinutes(10) };
var content = new MultipartFormDataContent();
content.Add(new StreamContent(stream), "file");
HttpResponseMessage message = await client.PostAsync(url, content);
string s = await message.Content.ReadAsStringAsync();
return message;
}
我尝试从 content.Add(new StreamContent(stream), "file");
中删除 "file"
但没有帮助。
注意:上传发生(即它不会立即返回)
您知道在使用 .NET 网络类时 curl -F 参数的等价物是什么吗?
编辑:
curl -v 的输出
* Hostname was NOT found in DNS cache
* Trying 87.106.252.119...
* Connected to api.sonicapi.com (87.106.252.119) port 80 (#0)
> POST /file/upload?access_id=xxxxxxxxxxxx HTTP/1.1
> User-Agent: curl/7.35.0
> Host: api.sonicapi.com
> Accept: */*
> Content-Length: 882266
> Expect: 100-continue
> Content-Type: multipart/form-data; boundary=------------------------b3c6dc0fc9
34fc71
>
< HTTP/1.1 100 Continue
< HTTP/1.1 201 Created
* Server nginx/0.7.67 is not blacklisted
< Server: nginx/0.7.67
< Date: Tue, 18 Feb 2014 21:14:09 GMT
< Content-Type: application/xml
< Connection: keep-alive
< X-Powered-By: Express
< X-Sonicapi-Request-Id: 6422cd9a-6069-4c2f-a3c5-0865c8ada6d5
< Access-Control-Allow-Origin: *
< location: /file/download?file_id=dae4e051-fe11-4058-a009-855dbb74de50
< X-Sonicapi-File-Id: dae4e051-fe11-4058-a009-855dbb74de50
< Content-Length: 249
<
<?xml version="1.0" encoding="utf-8"?><response><status code="201"/><file file_i
d="dae4e051-fe11-4058-a009-855dbb74de50" status="ready" href="/file/download?fil
e_id=dae4e051-fe11-4058-a009-855dbb74de50" remaining_lifetime_seconds="3599"/></
response>* Connection #0 to host api.sonicapi.com left intact
使用 Fiddly 的请求输出:
POST http://api.sonicapi.com/file/upload?access_id=xxxxxxxx
HTTP/1.1
Content-Type: multipart/form-data; boundary="bd6fba7f-c173-4470-9c44-c9cc91f618a9"
Host: api.sonicapi.com
Content-Length: 882175
Expect: 100-continue
Connection: Keep-Alive
--bd6fba7f-c173-4470-9c44-c9cc91f618a9
Content-Disposition: form-data; name=file
RIFFvu
�WAVEfmt
(截断)
最佳答案
感谢@bzlm,使用Fiddler我设法追踪丢失的东西:
- 内容配置
- 内容类型
并且这些需要在 streamContent
而不是 content
上设置。
public async Task<HttpResponseMessage> Post(string id, string fileName)
{
string url = string.Format("http://api.sonicapi.com/file/upload?access_id={0}", id);
var stream = new FileStream(fileName, FileMode.Open);
string name = Path.GetFileName(fileName);
var client = new HttpClient { Timeout = TimeSpan.FromMinutes(10) };
var streamContent = new StreamContent(stream);
streamContent.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data");
streamContent.Headers.ContentDisposition.Name = "\"file\"";
streamContent.Headers.ContentDisposition.FileName = "\"" + name + "\"";
streamContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
var content = new MultipartFormDataContent { streamContent };
HttpResponseMessage message = await client.PostAsync(url, content);
string s = await message.Content.ReadAsStringAsync();
return message;
}
关于c# - System.Net.Http.MultipartFormDataContent 的 "curl -F"参数是否等效?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21865205/