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Electron-pos-printer

A customizable electron.js printing plugin specifically designed for thermal receipt printers.
It supports 80mm, 78mm, 76mm, 58mm, 57mm, 44mm printers. It currently supports versions of electron >= 6.x.x

$3

``bash
$ npm install electron-pos-printer
$ yarn add electron-pos-printer
`

$3

Check out this Demo by fssonca

$3

$3

`js
const {PosPrinter} = require("electron-pos-printer");
`

$3

`js
const {PosPrinter} = require('electron').remote.require("electron-pos-printer");
`
Electron >= v10.x.x
`js
const {PosPrinter} = require('@electron/remote').remote.require("electron-pos-printer");
`

$3

`js
const {PosPrinter} = require("electron-pos-printer");
const path = require("path");

const options = {
preview: false,
margin: '0 0 0 0',
copies: 1,
printerName: 'XP-80C',
timeOutPerLine: 400,
pageSize: '80mm' // page size
}

const data = [
{
type: 'image',
url: 'https://randomuser.me/api/portraits/men/43.jpg', // file path
position: 'center', // position of image: 'left' | 'center' | 'right'
width: '160px', // width of image in px; default: auto
height: '60px', // width of image in px; default: 50 or '50px'
},{
type: 'text', // 'text' | 'barCode' | 'qrCode' | 'image' | 'table
value: 'SAMPLE HEADING',
style: {fontWeight: "700", textAlign: 'center', fontSize: "24px"}
},{
type: 'text', // 'text' | 'barCode' | 'qrCode' | 'image' | 'table'
value: 'Secondary text',
style: {textDecoration: "underline", fontSize: "10px", textAlign: "center", color: "red"}
},{
type: 'barCode',
value: '023456789010',
height: 40, // height of barcode, applicable only to bar and QR codes
width: 2, // width of barcode, applicable only to bar and QR codes
displayValue: true, // Display value below barcode
fontsize: 12,
},{
type: 'qrCode',
value: 'https://github.com/Hubertformin/electron-pos-printer',
height: 55,
width: 55,
style: { margin: '10 20px 20 20px' }
},{
type: 'table',
// style the table
style: {border: '1px solid #ddd'},
// list of the columns to be rendered in the table header
tableHeader: ['Animal', 'Age'],
// multi dimensional array depicting the rows and columns of the table body
tableBody: [
['Cat', 2],
['Dog', 4],
['Horse', 12],
['Pig', 4],
],
// list of columns to be rendered in the table footer
tableFooter: ['Animal', 'Age'],
// custom style for the table header
tableHeaderStyle: { backgroundColor: '#000', color: 'white'},
// custom style for the table body
tableBodyStyle: {'border': '0.5px solid #ddd'},
// custom style for the table footer
tableFooterStyle: {backgroundColor: '#000', color: 'white'},
},{
type: 'table',
style: {border: '1px solid #ddd'}, // style the table
// list of the columns to be rendered in the table header
tableHeader: [{type: 'text', value: 'People'}, {type: 'image', path: path.join(__dirname, 'icons/animal.png')}],
// multi-dimensional array depicting the rows and columns of the table body
tableBody: [
[{type: 'text', value: 'Marcus'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/43.jpg'}],
[{type: 'text', value: 'Boris'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/41.jpg'}],
[{type: 'text', value: 'Andrew'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/23.jpg'}],
[{type: 'text', value: 'Tyresse'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/53.jpg'}],
],
// list of columns to be rendered in the table footer
tableFooter: [{type: 'text', value: 'People'}, 'Image'],
// custom style for the table header
tableHeaderStyle: { backgroundColor: 'red', color: 'white'},
// custom style for the table body
tableBodyStyle: {'border': '0.5px solid #ddd'},
// custom style for the table footer
tableFooterStyle: {backgroundColor: '#000', color: 'white'},
},
]

PosPrinter.print(data, options)
.then(console.log)
.catch((error) => {
console.error(error);
});

`

Typescript

$3

`typescript
import {PosPrinter, PosPrintData, PosPrintOptions} from "electron-pos-printer";
import * as path from "path";

const options: PosPrintOptions = {
preview: false,
margin: '0 0 0 0',
copies: 1,
printerName: 'XP-80C',
timeOutPerLine: 400,
pageSize: '80mm' // page size
}

const data: PosPrintData[] = [
{
type: 'image',
url: 'https://randomuser.me/api/portraits/men/43.jpg', // file path
position: 'center', // position of image: 'left' | 'center' | 'right'
width: '160px', // width of image in px; default: auto
height: '60px', // width of image in px; default: 50 or '50px'
},{
type: 'text', // 'text' | 'barCode' | 'qrCode' | 'image' | 'table
value: 'SAMPLE HEADING',
style: {fontWeight: "700", textAlign: 'center', fontSize: "24px"}
},{
type: 'text', // 'text' | 'barCode' | 'qrCode' | 'image' | 'table'
value: 'Secondary text',
style: {textDecoration: "underline", fontSize: "10px", textAlign: "center", color: "red"}
},{
type: 'barCode',
value: '023456789010',
height: 40, // height of barcode, applicable only to bar and QR codes
width: 2, // width of barcode, applicable only to bar and QR codes
displayValue: true, // Display value below barcode
fontsize: 12,
},{
type: 'qrCode',
value: 'https://github.com/Hubertformin/electron-pos-printer',
height: 55,
width: 55,
style: { margin: '10 20px 20 20px' }
},{
type: 'table',
// style the table
style: {border: '1px solid #ddd'},
// list of the columns to be rendered in the table header
tableHeader: ['Animal', 'Age'],
// multi dimensional array depicting the rows and columns of the table body
tableBody: [
['Cat', 2],
['Dog', 4],
['Horse', 12],
['Pig', 4],
],
// list of columns to be rendered in the table footer
tableFooter: ['Animal', 'Age'],
// custom style for the table header
tableHeaderStyle: { backgroundColor: '#000', color: 'white'},
// custom style for the table body
tableBodyStyle: {'border': '0.5px solid #ddd'},
// custom style for the table footer
tableFooterStyle: {backgroundColor: '#000', color: 'white'},
},{
type: 'table',
style: {border: '1px solid #ddd'}, // style the table
// list of the columns to be rendered in the table header
tableHeader: [{type: 'text', value: 'People'}, {type: 'image', path: path.join(__dirname, 'icons/animal.png')}],
// multi-dimensional array depicting the rows and columns of the table body
tableBody: [
[{type: 'text', value: 'Marcus'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/43.jpg'}],
[{type: 'text', value: 'Boris'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/41.jpg'}],
[{type: 'text', value: 'Andrew'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/23.jpg'}],
[{type: 'text', value: 'Tyresse'}, {type: 'image', url: 'https://randomuser.me/api/portraits/men/53.jpg'}],
],
// list of columns to be rendered in the table footer
tableFooter: [{type: 'text', value: 'People'}, 'Image'],
// custom style for the table header
tableHeaderStyle: { backgroundColor: 'red', color: 'white'},
// custom style for the table body
tableBodyStyle: {'border': '0.5px solid #ddd'},
// custom style for the table footer
tableFooterStyle: {backgroundColor: '#000', color: 'white'},
},
]

PosPrinter.print(data, options)
.then(console.log)
.catch((error) => {
console.error(error);
});
`

Printing options


| Options | Required | Type | Description |
|----------------|:--------:|:---------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| printerName | No | string | The printer's name. If not set, the system's default printer will be used. |
| copies | No | number | The number of copies to print |
| preview | No | boolean | Preview print job in a window. Default is false |
| width | No | string | Width of a page's content |
| margin | No | string | Margin of a page's content. CSS margin values can be used Ex. 0 10px |
| timeOutPerLine | No | number | Timeout per line in milliseconds. Default value is 400 |
| silent | No | boolean | To print silently without the system displaying the printer selection window. Default value is true |
| pageSize | No | PaperSize, SizeOptions | Configure the paper size which is supported by your printer. values are are 80mm, 78mm, 76mm, 58mm, 57mm, 44mm or object with width and height properties in pixels. | |
| pathTemplate | No | string | Path to custom html template. Can be used for custom print styles. |
| header | No | string | Text to be printed as page header. |
| footer | No | string | Text to be printed as page footer. |
| margins | No | object | Page margins. See electron docs |
| landscape | No | boolean | Whether the page should be printed in landscape mode. Default is false. |
| scaleFactor | No | number | The scale factor of the web page. |
| pagesPerSheet | No | number | The number of pages to print per page sheet. |
| collate | No | boolean | Whether the page should be collated. |
| pageRanges | No | object[] | The page range to print. See electron docs |
| duplexMode | No | string | Set the duplex mode of the printed web page. See electron docs |
| dpi | No | object | See electron docs |

The Print data object

> ### Important!!
> The css property is no longer supported, use the style property instead of css.

> Example: style: {fontWeight: "700", textAlign: 'center', fontSize: "24px"}

| Property | Type | Description |
|------------------|------------------------------------------|:------------------------------------------------------------------------------------------|
| type | string | text, qrCode, barCode, image, table // type text can be an html string |
| value | string | Value of the current row |
| height | number | Applicable to type barCode and qrCode |
| width | number | Applicable to type barCode and qrCode |
| style | PrintDataStyle | Add css styles to line (jsx syntax)
ex: {fontSize: 12, backgroundColor: '#2196f3} |
| displayValue | boolean | Display value of barcode below barcode |
| position | string | left, center, right applicable to types qrCode and image |
| path | string | Path or url to the image asset |
| url | string | Url to image or a base 64 encoding of image |
| tableHeader | PosPrintTableField[] or string[] | The columns to be rendered in the header of the table. Works with type table |
| tableBody | PosPrintTableField[][] or string[][] | The columns to be rendered in the body of the table. Works with type table |
| tableFooter | PosPrintTableField[] or string[] | The columns to rendered it the footer of the table. Works with type table |
| tableHeaderStyle | string | Set a custom style to the table header |
| tableBodyStyle | string | Set a custom style to the table body |
| tableFooterStyle | string` | Set a custom style to the table footer |

Contributors

Thanks to our contributors 🎉👏
- Hubert Formin
- Sidnei Pacheco
- Ulisses Constantini
- Famous Ketoma