JAVASCRIPT

convert buffer to base64 javascript

var buffer = Buffer.from('hello');//create a buffer of the text "hello"
//right now, buffer == <Buffer 68 65 6c 6c 6f>
var string64 = buffer.toString('base64');
//the .toString operator can set encoding
//string64 == 'aGVsbG8='
//Alternatively, do it all at once:
var string64A = Buffer.from('hello').toString('base64')
//This works exactly the same as the previous method, but only uses 1 variable.

nodejs buffer.from base64

//--------------- HOW TO DECODE BASE64 ON NODEJS ----------------------
//create a buffer of the text "Hello World"
var buffer = Buffer.from('SGVsbG8gV29ybGQ=', 'base64');
//buffer result is: <Buffer 48 65 6c 6c 6f 20 57 6f 72 6c 64>

var string64 = buffer.toString('ascii');
// .toString('ascii') allow to decode base64
// result is: "Hello World"

// Can be use combined together like these
console.log(Buffer.from('SGVsbG8gV29ybGQ=', 'base64').toString('ascii'));
// result is: "Hello World"

nodejs buffer.from base64

//--------------- HOW TO ENCODE BASE64 ON NODEJS ----------------------
//create a buffer of the text "Hello World"
var buffer = Buffer.from('Hello World');
//buffer result is: <Buffer 48 65 6c 6c 6f 20 57 6f 72 6c 64>

var string64 = buffer.toString('base64');
// .toString('base64') allow to encode it to base64
// result is: SGVsbG8gV29ybGQ=

// Can be use combined together like these
console.log(Buffer.from('Hello World').toString('base64'));
// result is: SGVsbG8gV29ybGQ=