Class: Getimg::Image

Inherits:
Object
  • Object
show all
Defined in:
lib/getimg/image.rb

Instance Method Summary collapse

Instance Method Details

#base64_to_file(base64_data, filename = "image") ⇒ Object 



5
6
7
8
9
10
11
12
13
14
15
16
17
 
# File 'lib/getimg/image.rb', line 5

def base64_to_file(base64_data, filename = "image")
  # return base64_data unless base64_data.present? && base64_data.is_a?(String)

  # decode64
  img_from_base64 = Base64.decode64(base64_data)

  # find file type
  filetype = /(png|jpg|jpeg|gif|PNG|JPG|JPEG|GIF)/.match(img_from_base64[0, 16])[0]

  # write file
  file = "#{filename}.#{filetype}"
  File.binwrite(file, img_from_base64)
end

#file_to_base64(file_path) ⇒ Object 



19
20
21
22
23
24
25
 
# File 'lib/getimg/image.rb', line 19

def file_to_base64(file_path)
  File.open(file_path, "rb") do |file|
    # why strict_encode64
    # https://ruby-doc.org/stdlib-2.3.1/libdoc/base64/rdoc/Base64.html#method-i-strict_encode64
    Base64.strict_encode64(file.read)
  end
end