使用PowerShell使用multipart/form-data将文件上载到API端点

# 定义API端点URL和文件路径
$apiEndpoint = "https://api.example.com/upload"
$filePath = "C:\path\to\file.txt"

# 创建一个Web请求对象
$request = [System.Net.WebRequest]::Create($apiEndpoint)
$request.Method = "POST"

# 创建一个multipart/form-data格式的请求内容
$boundary = [System.Guid]::NewGuid().ToString()
$multipartContent = [System.Text.Encoding]::UTF8.GetBytes("--$boundary`r`n")
$multipartContent += [System.Text.Encoding]::UTF8.GetBytes('Content-Disposition: form-data; name="file"; filename="' + [System.IO.Path]::GetFileName($filePath) + '"`r`n')
$multipartContent += [System.Text.Encoding]::UTF8.GetBytes("Content-Type: application/octet-stream`r`n`r`n")
$multipartContent += [System.IO.File]::ReadAllBytes($filePath)
$multipartContent += [System.Text.Encoding]::UTF8.GetBytes("`r`n--$boundary--`r`n")

# 设置请求头信息
$request.ContentType = "multipart/form-data; boundary=$boundary"
$request.ContentLength = $multipartContent.Length

# 将请求内容写入请求流中
$requestStream = $request.GetRequestStream()
$requestStream.Write($multipartContent, 0, $multipartContent.Length)
$requestStream.Close()

# 发送请求并获取响应
$response = $request.GetResponse()
$responseStream = $response.GetResponseStream()
$reader = New-Object System.IO.StreamReader($responseStream)
$responseBody = $reader.ReadToEnd()
$reader.Close()
$responseStream.Close()
$response.Close()

# 处理响应数据
Write-Host "上传成功！响应数据：$responseBody"