chinoto/qr_encoder.js

## qr_encoder.js
const fs = require('fs-extra');
const {gzip,ungzip:gunzip} = require('node-gzip');
//const decoder = new require('string_decoder').StringDecoder('utf8');
//const {toByteArray:b64dec,fromByteArray:b64enc} = require('base64-js');
//const {encode:yEnc,decode:yDec} = require('yenc-stream');
const qrI = require('qr-image');
//const qrC = require('qrcode');

async function encoder(jsonStr) {
	//let jsonStr=await fs.readFile('/home/damian/Downloads/F8KKsSyF.txt','utf-8');
	let jsonGzip64=await gzip(jsonStr);
	return qrI.imageSync(jsonStr,{ec_level:'L',type:'svg'});
	/*
	let test=await gunzip((jsonGzip64));
	console.log(
		jsonStr+'\n\n'
		+jsonGzip64+'\n\n'
		+`${jsonStr.length}:${jsonGzip64.length}:${(jsonGzip64.length/jsonStr.length*100)|0}%\n`
		+(decoder.write(test)===jsonStr)
	);
	*/
};

const app = require('express')();
app.get('/*',async (req,res)=>{
	res.send(
		`<!DOCTYPE html>
		<html><body style='width:30em;'>
			${await encoder(decodeURIComponent(req.url.slice(1)))}
		</body></html>`);
});
app.listen(8080);
	const fs = require('fs-extra');
	const {gzip,ungzip:gunzip} = require('node-gzip');
	//const decoder = new require('string_decoder').StringDecoder('utf8');
	//const {toByteArray:b64dec,fromByteArray:b64enc} = require('base64-js');
	//const {encode:yEnc,decode:yDec} = require('yenc-stream');
	const qrI = require('qr-image');
	//const qrC = require('qrcode');

	async function encoder(jsonStr) {
	//let jsonStr=await fs.readFile('/home/damian/Downloads/F8KKsSyF.txt','utf-8');
	let jsonGzip64=await gzip(jsonStr);
	return qrI.imageSync(jsonStr,{ec_level:'L',type:'svg'});
	/*
	let test=await gunzip((jsonGzip64));
	console.log(
	jsonStr+'\n\n'
	+jsonGzip64+'\n\n'
	+`${jsonStr.length}:${jsonGzip64.length}:${(jsonGzip64.length/jsonStr.length*100)\|0}%\n`
	+(decoder.write(test)===jsonStr)
	);
	*/
	};

	const app = require('express')();
	app.get('/*',async (req,res)=>{
	res.send(
	`<!DOCTYPE html>
	<html><body style='width:30em;'>
	${await encoder(decodeURIComponent(req.url.slice(1)))}
	</body></html>`);
	});
	app.listen(8080);