lsongdev / lsongdev/node-escpos
examples/star_printer_index.js
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Description
examples/star_printer_index.js
async printReceipt() {
const escpos = require('escpos');
escpos.Network = require('escpos-network');
const device = new escpos.Network('192.168.1.48',9100);
const printer = new escpos.Printer(device);
device.open(function () {
printer
.font('a')
.align("STAR_CA")
.style('bu')
.size(1, 1)
.emphasize()
.text('The quick brown fox jumps over the lazy dog')
.cancelEmphasize()
.align("STAR_LA")
.text('Hello, am printing')
.align("STAR_RA")
.barcode('1234567', 'EAN8')
.qrimage('https://github.com/song940/node-escpos', function () {
this.fullCut()
this.close();
});
});
},
am getting this error.. "TypeError: net.Socket is not a constructor"
I read everywhere that via browser I should just forget the TCP support.. is that true? is there any work around to be able to print via ethernet cable? if yes what to do?
Otherwise I think I can go with the usb solution witch I dont prefer.. any help please?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue points to examples/star_printer_index.js and the escpos/escpos-network setup; first reproduce the reported net.Socket is not a constructor error and establish whether it runs in a browser or Node.js. Done means a confirmed Ethernet-printing path is identified, or the browser limitation and supported alternative are documented.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, nodejs
- Domain
- networking
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100