receiptline
Version:
Markdown for receipts. Printable digital receipts. Generate receipt printer commands and images.
108 lines (97 loc) • 3.91 kB
JavaScript
/*
Copyright 2021 Open Foodservice System Consortium
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// QR Code is a registered trademark of DENSO WAVE INCORPORATED.
const http = require('http');
const net = require('net');
const receiptline = require('receiptline');
// ReceiptLine
const text = `{image: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}
市ヶ谷駅前店
東京都千代田区九段1-Y-X
2021年 2月 7日(日) 21:00
{border:line; width:29}
^領 収 証
{border:space; width:*,2,10}
ビール | 2| ¥1,300
千鳥コース | 2| ¥17,280
-------------------------------------
{width:*,20}
^合計 | ^¥18,580
現 金 | ¥20,000
お 釣 り | ¥1,420
{code:20210207210001; option:48,hri}`;
const svg = receiptline.transform(text, { cpl: 35, encoding: 'shiftjis', spacing: true });
// HTML
const html = `<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Receipt</title>
<style type="text/css">
div {
float: left;
padding: 24px;
box-shadow: 0 6px 12px rgba(0, 0, 0, .5);
/*background: linear-gradient(lightblue, white);*/
background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAADAQMAAACplL1tAAAABlBMVEWQ7pD///+SGxGEAAAAFElEQVQI12M4l/+AYf/mCQyFdwoAJNIF3T0xRTsAAAAASUVORK5CYII=);
}
</style>
</head>
<body>
<a href="/print">Print</a>
<hr>
<div>${svg}</div>
</body>
</html>`;
// Printer
const printer = {
"host": "127.0.0.1",
"port": 9100,
"cpl": 35,
"encoding": "shiftjis",
"spacing": true,
"command": "escpos"
};
// Server
const server = http.createServer((req, res) => {
switch (req.method) {
case 'GET':
const path = new URL(req.url, `http://${req.headers.host}`).pathname;
if (path === '/') {
res.writeHead(200, {'Content-Type': 'text/html'});
res.end(html);
}
else if (path === '/print') {
const socket = net.connect(printer.port, printer.host, () => {
socket.end(receiptline.transform(text, printer), 'binary');
});
socket.on('error', err => {
console.log(err.message);
});
res.writeHead(200, {'Content-Type': 'text/html'});
res.end();
}
else {
res.writeHead(404);
res.end();
}
break;
default:
res.writeHead(404);
res.end();
break;
}
});
server.listen(8080, "127.0.0.1", () => {
console.log('Server running at http://localhost:8080/');
});