Node.js - encoding / decoding base64

In this short article, we would like to show how to encode text to base64 and back (decode base64) in Node.js.

Note:

In the presented solution, we use the Buffer class, which has a global scope in Node.js and does not need to be imported using the require.

const Base64 = {
    encode: (text) => {
        const buffer = Buffer.from(text, 'binary');
        return buffer.toString('base64');
    },
    decode: (base64) => {
        const buffer = Buffer.from(base64, 'base64');
        return buffer.toString('binary');
    },
};

// Example:

console.log(Base64.encode('This is text...'));      // VGhpcyBpcyB0ZXh0Li4u
console.log(Base64.decode('VGhpcyBpcyB0ZXh0Li4u')); // This is text...

See also:

1. JavaScript - base64 with Unicode support
2. Node.js - atob / btoa functions equivalents

3. Node.js - base64 with Unicode support