@rnw-community/react-native-payments/src/util/get-native-payments-event-emitter/get-native-payments-event-emitter.util.ts

Accept Payments with Apple Pay and Android Pay using the Payment Request API.

import { NativeEventEmitter } from 'react-native';

import { isDefined } from '@rnw-community/shared';

import { NativePayments } from '../../class/native-payments/native-payments.js';

import type { Maybe } from '@rnw-community/shared';
import type { NativeModule } from 'react-native';

let nativePaymentsEventEmitter: Maybe<NativeEventEmitter> = null;

export const getNativePaymentsEventEmitter = (): Maybe<NativeEventEmitter> => {
    const { addListener, removeListeners } = NativePayments;

    if (!isDefined(addListener) || !isDefined(removeListeners)) {
        return null;
    }

    nativePaymentsEventEmitter ??= new NativeEventEmitter(NativePayments as unknown as NativeModule);

    return nativePaymentsEventEmitter;
};