The Base64 decoding process is very much similar to the encoding process. The second parameter in om() is optional when dealing with plain-text (UTF-8) strings. In the above example, we created a buffer from the string and used the toString() method to decode the buffer as a Base64 string. log (base64 ) // QmFzZTY0IEVuY29kaW5nIGluIE5vZGUuanM= toString ( 'base64' ) // print Base64 stringĬonsole. from (str, 'utf-8' ) // decode buffer as Base64 const base64 = buff. Here is an example: // plain-text string const str = 'Base64 Encoding in Node.js' // create a buffer const buff = Buffer. If no character encoding is specified, UTF-8 will be used as the default. This method takes two parameters, a plain-text string, and the character encoding, and creates a buffer or binary data array for the given encoding. To convert a string into a Base64 encoded string, we first create a buffer from the given string using the om() method. Let us look at the below examples that explain how to use the Buffer object to perform Base64 encoding and decoding in a Node.js application. This includes to and from UTF-8, UCS2, Base64, ASCII, UTF-16, and even the HEX encoding scheme. The Buffer object provides several methods to perform different encoding and decoding conversions. Internally, Buffer represents binary data in the form of a sequence of bytes. Buffer is available as a global object, and you don't need to explicitly require this module in your application. Luckily, Node.js provides a native Buffer module that can be used to perform Base64 encoding and decoding. These methods are part of the window object and are only available in the browser. Unfortunately, Node.js doesn't support standard JavaScript functions like atob() and btoa() for Base64 encoding. Today, you'll learn how to do the Base64 encoding and decoding in a Node.js application. Note that, the Base64 encoding scheme also uses an extra 65th character = as pad character.In an earlier article, we looked at how to Base64 encode and decode a string in Java and JavaScript. These 64 characters form the Base64 alphabet. These characters include upper and lowercase alphabets ( A-Za-z), digits ( 0-9), +, and /. It is called Base64 because it works with a subset of 64 characters from the ASCII character set. It is an encoding scheme that converts binary data like image or file to the ASCII character set. Note that, Base64 is not an encryption or compression scheme. It is needed to safely transmit binary data over a transmission protocol/medium that does not support/handle binary data correctly. What is Base64 Encoding and why is it used?īase64 encoding is a way to convert any binary or text data into printable ASCII string format. The website also contains several tutorials and articles about Base64 encoding and how to Base64 encode any binary or text data in different programming languages like Java, Go, PHP, Python, and Javascript. You can also convert an Image to Base64 encoded data using our Image to Base64 converter tool. Once the data is encoded, you can click in the output textarea to copy the encoded data. You can get started by typing or pasting any string in the input textarea, the tool will convert the entered data to Base64 encoded format in real time. Base64Encoder.io is a simple and easy-to-use online tool to encode any binary or text data to Base64 encoded format.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |