大佬教程收集整理的这篇文章主要介绍了在c#HttpClient 4.5中发布multipart / form-data，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
我正在尝试发布API以将数据发送到API,该API调用我的内部API服务以将该数据发送到其他API i服务.实体包含带文件的属性.这只将文件发送到另一个派生,但NameSender属性不随文件一起发送.
实体
public class Email { public String NameSender{ get; set; } public List<IFormFile> Files { get; set; } }
API
[Consumes("multipart/form-data")]
[httpPost]
public IActionResult SendEmail([FromForm]Entity entity)
{
try
{
String servicesfuri = this.serviceContext.CodePackageActivationContext.ApplicationName + "/" + this.configSetTings.SendNotificationservicename;
String proxyUrl = $"http://localhost:{this.configSetTings.ReverseProxyPort}/{servicesfuri.replace("fabric:/","")}/api/values/Send";
//attachments
var requestContent = new MultipartFormDataContent();
foreach (var item in entity.Files)
{
StreamContent streamContent = new StreamContent(item.OpenReadStream());
var fileContent = new ByteArrayContent(streamContent.ReadAsByteArrayAsync().Result);
requestContent.Add(fileContent,item.Name,item.FileName);
}
httpResponsemessage response = this.httpClient.PostAsync(proxyUrl,requestContent).Result;
if (response.StatusCode != System.Net.httpStatusCode.oK)
{
return this.StatusCode((int)response.StatusCodE);
}
return this.Ok(response.Content.ReadAsStringAsync().Result);
}
catch (Exception E)
{
throw e;
}
}
public async Task<bool> Upload(FileUploadrequest model) { var httpClientHandler = new httpClientHandler() { Proxy = new WebProxy("proxyAddress","proxyPort") { Credentials = CredentialCache.DefaultCredentials },PreAuthenticate = true,UseDefaultCredentials = true }; var fileContent = new StreamContent(model.File.openReadStream()) { Headers = { ContentLength = model.File.Length,ContentType = new MediaTypeHeaderValue(model.File.ContentTypE) } }; var formDataContent = new MultipartFormDataContent(); formDataContent.Add(fileContent,"File",model.File.FileName); // file formDataContent.Add(new StringContent("Test Full Name"),"FullName"); // form input using (var client = new httpClient(handler: httpClientHandler,disposeHandler: truE)) { client.DefaultrequestHeaders.Add("Authorization","Bearer " + tokenString); using (var res = await client.PostAsync("http://filestorageurl",formDataContent)) { return res.IssuccessStatusCode; } } }
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