将图片转换为二进制BASE64

Question

How do I convert a picture to binary BASE64 and send it by post to another API to be saved? 如何将图片转换为二进制BASE64并通过邮寄发送到另一个要保存的API？

It looks something like: 看起来像：

User imports a photo through the HTML form and it transforms it to binary BASE64 code: 用户通过HTML表单导入照片，并将其转换为二进制BASE64代码：
```
 base64_encode = Base64.encode64(img_from_fild_form) 
```

The data is sent to another API (media): 数据被发送到另一个API（媒体）：

 options = { :auth_key=>01qw6, :post_id=>20, :base64_encode=>base64_encode } HTTParty.post('localhost:9000/save_image', options)

Answer 1

if the input is from a rails form then it probably as easy as: 如果输入来自Rails表单，则可能很简单：

Base64.encode64(params[:key_for_file].read)

the uploaded file is likely an instance of ActionDispatch::Http::UploadedFile 上传的文件可能是ActionDispatch::Http::UploadedFile的实例

Answer 2

It should be as easy as: 它应该很简单：

require 'base64'
base64_encoded = Base64.encode64(img_from_file_form)

Hope that helps. 希望能有所帮助。 :) :)