zpl-handlebars

ZPL label templating using Handlebars.

Installation

$ npm i zpl-handlebars

ZPL References

• Specification.
• Cheat sheet

Usage

import { compile } from 'zpl-handlebars';
import { Image } from 'image-js';

const template = `
^XA
^FO150,125^ADN,36,20^FD{{data.value1}}^FS
^FO100,100^XGR:{{images.myImage}},1,1^FS
^XZ
`;

const compiled = compile(template);

// prettier-ignore
const myImage = new Image(8, 4, [ // Or load any image with Image.load()
    0,   0,   0,   0,   0,   0,   0,   0,
  255,   0, 255, 255,   0, 255, 255, 255,
  255, 255,   0, 255, 255, 255, 255,   0,
  255, 255, 255, 255, 255, 255, 255, 255
  // @ts-ignore
], { kind: 'GREY' });

const zpl = compiled({ data: { value1: 'TEST' }, images: { myImage } });
/*
~DGR:00000000.GRF,4,1,
FF
48
21
00
^XA
^FO150,125^ADN,36,20^FDTEST^FS
^FO100,100^XGR:00000000.GRF,1,1^FS
^XZ
*/

Helpers

toFixed

Formats a value using Number(value).toFixed(decimals).
The decimals parameter is optional and defaults to 2.

{{toFixed data.value}}
{{toFixed data.value 3}}

License

MIT