npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@promethewz/rn-thermal-receipt-printer

v0.0.11

Published

Fork of react-native-thermal-receipt-printer. A React Native Library to support USB/BLE/Net printer (RN 0.73 support)

Downloads

25

Readme

react-native-thermal-receipt-printer-image-qr

NPM version NPM downloads Issues Forks Stars

  • THIS IS NOT THE OFFICIAL PROJECT, I forked it cz I need some quick fixes.
  • Fork of react-native-thermal-receipt-printer and add implement :

| Implement | Android | IOS | | ---------- | ------------------ | ------------------ | | Image & QR | :heavy_check_mark: | :exclamation: | | Fix cut | :heavy_check_mark: | :heavy_check_mark: | | Print With Column | :heavy_check_mark: | :heavy_check_mark: | | NET Connect Timeout | :heavy_check_mark: | :heavy_check_mark: |

:grey_exclamation:Print Image & QR with bluetooth in IOS just implement not tested yet

Installation

npm i @promethewz/rn-thermal-receipt-printer
npm i react-native-ping

or

yarn add @promethewz/rn-thermal-receipt-printer
yarn add react-native-ping

next step

# RN >= 0.60
cd ios && pod install

# RN < 0.60
kys if you are still using that version

API Reference

    init: () => Promise;
    getDeviceList: () => Promise;
    /**
     * `timeout`
     * @default 4000ms
     */
    connectPrinter: (host: string, port: number, timeout?: number | undefined) => Promise;
    closeConn: () => Promise;
    /**
     * Print text
     */
    printText: (text: string, opts?: {}) => void;
    /**
     * Print text & end the bill & cut
     */
    printBill: (text: string, opts?: PrinterOptions) => void;
    /**
     * print with image url
     */
    printImage: (imgUrl: string, opts?: PrinterImageOptions) => void;
    /**
     * Base 64 string
     */
    printImageBase64: (Base64: string, opts?: PrinterImageOptions) => void;
    /**
     * Only android print with encoder
     */
    printRaw: (text: string) => void;
    /**
     * print column
     * 80mm => 46 character
     * 58mm => 30 character
     */
    printColumnsText: (texts: string[], columnWidth: number[], columnAliment: ColumnAliment[], columnStyle?: string[], opts?: PrinterOptions) => void;

Styling

import {
  COMMANDS
} from '@promethewz/rn-thermal-receipt-printer';

See more here

Example

Print Columns Text

const BOLD_ON = COMMANDS.TEXT_FORMAT.TXT_BOLD_ON;
const BOLD_OFF = COMMANDS.TEXT_FORMAT.TXT_BOLD_OFF;
let orderList = [
  ["1. Skirt Palas Labuh Muslimah Fashion", "x2", "500$"],
  ["2. BLOUSE ROPOL VIRAL MUSLIMAH FASHION", "x4222", "500$"],
  ["3. Women Crew Neck Button Down Ruffle Collar Loose Blouse", "x1", "30000000000000$"],
  ["4. Retro Buttons Up Full Sleeve Loose", "x10", "200$"],
  ["5. Retro Buttons Up", "x10", "200$"],
];
let columnAliment = [ColumnAliment.LEFT, ColumnAliment.CENTER, ColumnAliment.RIGHT];
let columnWidth = [46 - (7 + 12), 7, 12]
const header = ['Product list', 'Qty', 'Price']
Printer.printColumnsText(header, columnWidth, columnAliment, [`${BOLD_ON}`, '', '']);
for (let i in orderList) {
  Printer.printColumnsText(orderList[i], columnWidth, columnAliment, [`${BOLD_OFF}`, '', '']);
}
Printer.printBill(`${CENTER}Thank you\n`);

See more here

Troubleshoot

  • P.S.: I have no clue if this will work on IOS or not. I just needed a quick fix on android :p

  • when install in react-native version >= 0.60, xcode show this error

duplicate symbols for architecture x86_64

that because the .a library uses CocoaAsyncSocket library and Flipper uses it too

Podfile

...
  use_native_modules!

  # Enables Flipper.
  #
  # Note that if you have use_frameworks! enabled, Flipper will not work and
  # you should disable these next few lines.
  # add_flipper_pods!
  # post_install do |installer|
  #   flipper_post_install(installer)
  # end
...

and comment out code related to Flipper in ios/AppDelegate.m

Support

| Printer | Android | IOS | | ---------- | ------------------ | ------------------ | | USBPrinter | :heavy_check_mark: | | | BLEPrinter | :heavy_check_mark: | :heavy_check_mark: | | NetPrinter | :heavy_check_mark: | :heavy_check_mark: |

Development workflow

To get started with the project, run yarn bootstrap in the root directory to install the required dependencies for each package:

yarn bootstrap

While developing, you can run the example app to test your changes.

To start the packager:

yarn example start

To run the example app on Android:

yarn example dev-android

To run the example app on iOS:

yarn example ios