node.js - 使用nodejs将base64Image上传到azure存储时出错

Question

将 base64Image 上传到 Azure 时遇到错误。

使用 Node.js 编写代码:

var name = req.body.name;
var img = req.body.image; //this image is base64Image

var uploadOptions = {
    container: 'myphoto',
    blob: name,
    text: img
}

blobServiceClient.createBlockBlobFromText(
    uploadOptions.container,
    uploadOptions.blob,
    uploadOptions.text,
    {
        contentType: 'image/jpg',
        contentEncoding: 'base64'
    }, 
    function(error, result, response) {
        if (error) {
            res.send(error);
        }

        console.log("result", result);
    
        console.log("response", response);
    }
);    

这是 Azure 中的图像:

这是我打开图像时遇到的错误:

请求的图像采用base64Image格式。

如何修复此错误？

Answer 1

如果您将base64图像上传到azure blob存储，我建议您将图像内容转换为Buffer然后上传。

例如

我的 Base64 图像

data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBxMTEhUTExMWFRUXGBobGBgYGRsfIBoZIBsgHSAgIB0ZISghGR0lGx0XIT....

代码

var name = req.body.name;
var img = req.body.image; //this image is base64Image
var matches = img.match(/^data:([A-Za-z-+\/]+);base64,(.+)$/);
var type = matches[1];
var buffer = Buffer.from(matches[2], "base64");
var uploadOptions = {
    container: 'test',
    blob: name,
    text: buffer
}
blobServiceClient.createBlockBlobFromText(
  uploadOptions.container,
  uploadOptions.blob,
  uploadOptions.text,
  {
    contentSettings: {
      contentType: type,
    },
  }, 
    function(error, result, response) {
        if (error) {
            res.send(error);
        }

        console.log("result", result);
    
        console.log("response", response);
    }
);  

我的结果。