C＃将文件发布到WEB API [英] C# post file to WEB API

问题描述

我使用te POSTMAN应用程序将文件上传到API，

现在我想在c＃中实际执行POST命令，我该如何以最有效的方式执行此操作？



url192.168.0.1/api/files



标题

key =授权，价值=123456



Formdata

key = files，value =< file>

key = Info，value =< {DocName：Test}>



如果状态== 200

控制台。 WriteLine（OK）;

else

Console.WriteLine（ERROR+ response.StatusCode +：Message - + response.ReasonPhrase）;



我尝试过：



HttpClient client = new HttpClient（）;

client.BaseAddress = new Uri（https：///api.ontriz.com/files）;

client.DefaultRequestHeaders.TryAddWithoutValidation（Authorization，123456 ）;



然后??

I use te POSTMAN application to upload a file to an API,
now I want to actually do a POST commando in c#, how can I do this in the most efficient way?

url "192.168.0.1/api/files"

Header
key= Authorization, value = "123456"

Formdata
key= files, value = <file>
key= Info, value = <{"DocName": "Test"}>

if status == 200
Console.WriteLine("OK");
else
Console.WriteLine( "ERROR" + response.StatusCode + " : Message - " + response.ReasonPhrase);

What I have tried:

HttpClient client = new HttpClient();
client.BaseAddress = new Uri("https:///api.ontriz.com/files");
client.DefaultRequestHeaders.TryAddWithoutValidation("Authorization", "123456");

but then??

推荐答案

使用 MultipartFormDataContent class [ ^ ] ：

Use the MultipartFormDataContent class[^]:

using (var form = new MultipartFormDataContent())
using (var stream = File.OpenRead(@"Path\To\Your\File.ext"))
using (var streamContent = new StreamContent(stream))
{
    form.Add(streamContent, "files");
    form.Add(new StringContent("<{\"DocName\": \"Test\"}>"), "Info");
    response = await client.PostAsync(null, form);
}

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