react-native-pos-printer

react native module for printing receipt on pos printer.

For now it's only support for android

Prerequisites

You must install the following library to your react native project

1. RNFetchBlob (optional) if you want to print with image

Getting started

$ npm install react-native-pos-printer --save

Mostly automatic installation

$ react-native link react-native-pos-printer

Manual installation

iOS

Still not supported yet

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import com.reactlibrary.RNPosPrinterPackage; to the imports at the top of the file
• Add new RNPosPrinterPackage() to the list returned by the getPackages() method

1. Append the following lines to android/settings.gradle:

   include ':react-native-pos-printer'
   project(':react-native-pos-printer').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-pos-printer/android')
   

2. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-pos-printer')
   

Usage

import RNPosPrinter from 'react-native-pos-printer';

Init Printer

For the first time need to initialize the pos printer, the return will be Promise<void>

RNPosPrinter.init(true);

Option

isDebug: boolean //default false

Get All Printer Devices

To get all printer devices you just need to call this one, the return will be Promise<Printer[]>

RNPosPrinter.getDevices()

Scan Device

To scan all devices printer, the return will be Promise<boolean>

RNPosPrinter.scanDevices(callback);

Option

callback: Callback

Stop Scan Device

To stop scanning all devices printer, the return will be Promise<boolean>

RNPosPrinter.stopScanDevices();

Connect Device

To connect to specific pos printer, the return will be Promise<any>

RNPosPrinter.connectDevice(deviceId, timeout);

Option

deviceId: string
timeout: number //default 30000 ms

Connect And Print

To connect and automatically print on specific pos printer, the return will be Promise<any>

RNPosPrinter.connectAndPrintReceipt(deviceId);

Option

deviceId: string

Print Example

To print on pos printer

RNPosPrinter.printTestReceipt(storageUrl);

Option

storageUrl: string //optional, if want to print image

Misc

If you want to use directly the printer command you can access on

RNPosPrinter.printerModule