je_nfc_sdk/dist/logic/NfcService.js

A comprehensive React Native SDK for NFC-based device control and communication

// logic/NfcService.ts
import NfcManager, { NfcTech } from 'react-native-nfc-manager';
import { Platform } from 'react-native';
import LoggerService from '../utils/LoggerService';
export const NfcService = {
    async checkNfcSupport() {
        const supported = await NfcManager.isSupported();
        const enabled = supported ? await NfcManager.isEnabled() : false;
        LoggerService.log(`NFC Supported: ${supported}, Enabled: ${enabled}`);
        return { supported, enabled };
    },
    async scanTag() {
        await NfcManager.start();
        await NfcManager.requestTechnology(NfcTech.IsoDep);
        const tag = await NfcManager.getTag();
        LoggerService.log(`Tag: ${JSON.stringify(tag)}`);
        return tag;
    },
    async sendApdu(apdu, timeoutMs = 5000) {
        return Promise.race([
            NfcManager.transceive(apdu),
            new Promise((_, reject) => setTimeout(() => reject(new Error('⏰ NFC transceive timeout')), timeoutMs))
        ]);
    },
    async test() {
        return '✅ SDK Test Function Called Successfully';
    },
    async stop() {
        await NfcManager.cancelTechnologyRequest();
    },
    extractTagInfo(tag) {
        const info = {};
        if (tag.id)
            info.id = tag.id;
        if (tag.techTypes)
            info.techTypes = tag.techTypes;
        if (Platform.OS === 'android') {
            if (tag.atqa)
                info.atqa = tag.atqa;
            if (tag.sak)
                info.sak = tag.sak;
        }
        return info;
    }
};