无法使用文件路径将通用base64映像发送到API

Question

因此，我试图将图像的base64字符串发送到Cloudinary。一切正常，除了文件路径一位。没有实际的文件路径，因为未保存文件。

这是它的外观（以@开头：]

var uploadParams = new ImageUploadParams()
{
    File = new FileDescription(@"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==")
};

这就是我的做法：

var param = ("data:image/png;base64," + file);
// file is equal to the string (param gives the correct value that I'm looking for)

var uploadParams = new ImageUploadParams()
{
    File = new FileDescription(param)
};

我尝试过这些：

// 1

var uploadParams = new ImageUploadParams()
{
    File = new FileDescription(@param)
};

// 2

var uploadParams = new ImageUploadParams()
{
    File = new FileDescription(@ + param)
};

// 3

var uploadParams = new ImageUploadParams()
{
    File = new FileDescription((@param).ToString())
};

但是这些都不起作用，我真的不知道该怎么做。

Answer 1

根据@Oguz Ozgul的链接，您的解决方案是：

string dataImageBase64 = @"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
string pattern = "data:.*?base64,";
string base64string = Regex.Replace(dataImageBase64, pattern, "");
Stream imageStream = new MemoryStream(Convert.FromBase64String(base64string));
var uploadParams = new ImageUploadParams
{
    File = new FileDescription("Picture", imageStream)
};