index.ts

import { NativeEventEmitter, NativeModules } from "react-native";

const { C72RfidScanner } = NativeModules;

const eventEmitter = new NativeEventEmitter(C72RfidScanner);

type initializeReader = () => void;

type deInitializeReader = () => void;

type readSingleTag = () => Promise<any>;

type readPower = () => Promise<any>;

type changePower = (powerValue: any) => Promise<any>;

type AddListener = (cb: (args: any[]) => void) => void;

type clearTags = () => void;

const initializeReader: initializeReader = () =>
  C72RfidScanner.initializeReader();

const deInitializeReader: deInitializeReader = () =>
  C72RfidScanner.deInitializeReader();

const readSingleTag: readSingleTag = () =>
  C72RfidScanner.readSingleTag();

const startReadingTags = (callback: (args: any[]) => any) =>
  C72RfidScanner.startReadingTags(callback);

const stopReadingTags = (callback: (args: any[]) => any) =>
  C72RfidScanner.stopReadingTags(callback);

const readPower = () => C72RfidScanner.readPower();

const changePower: changePower = (powerValue: any) =>
  C72RfidScanner.changePower(powerValue);

const powerListener: AddListener = (listener) =>
  eventEmitter.addListener("UHF_POWER", listener);

const tagListener: AddListener = (listener) =>
  eventEmitter.addListener("UHF_TAG", listener);

const clearTags: clearTags = () => C72RfidScanner.clearAllTags();

export default {
  powerListener,
  tagListener,
  initializeReader,
  readSingleTag,
  startReadingTags,
  stopReadingTags,
  readPower,
  changePower,
  deInitializeReader,
  clearTags
};