src/DSBEncoding.js

import pako from 'pako';

const a = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
function btoa(b) {
	let c,
		d,
		e = '';
	for (c = 0, d = b.length; d > c; c += 3) {
		const f = 255 & b.charCodeAt(c),
			g = 255 & b.charCodeAt(c + 1),
			h = 255 & b.charCodeAt(c + 2),
			i = f >> 2,
			j = ((3 & f) << 4) | (g >> 4),
			k = d > c + 1 ? ((15 & g) << 2) | (h >> 6) : 64,
			l = d > c + 2 ? 63 & h : 64;
		e += a.charAt(i) + a.charAt(j) + a.charAt(k) + a.charAt(l);
	}
	return e;
}
function atob(a) {
	for (
		var b,
			c,
			d =
				'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',
			e = String(a).replace(/=+$/, ''),
			f = 0,
			g = 0,
			h = '';
		(c = e.charAt(g++));
		~c && ((b = f % 4 ? 64 * b + c : c), f++ % 4)
			? (h += String.fromCharCode(255 & (b >> ((-2 * f) & 6))))
			: 0
	)
		c = d.indexOf(c);
	return h;
}

/**
 *
 * @private
 * @param {*} ObjectToEncode
 */
export default function(ObjectToEncode) {
	let b = pako.deflate(JSON.stringify(ObjectToEncode), {
		to: 'string',
		gzip: !0
	});
	return (b = btoa(b));
}