你如何在 React Native 0.70 中实现支付？

Question

How do you implement payments in React Native 0.70. I worked with earlier React Native versions using react-native-credit-card-input and react-native-credit-card-input-plus that are now breaking.

Answer 1

Now it very easy to implement the payment methods in react-native because stripe provide official doc .

They provide a built-in UI for checkout and Card Tokenisation , Here you can Follow Official Doc

1) Setup

install stripe official react-native sdk

yarn add @stripe/stripe-react-native

To initialise Stripe in your React Native app, either wrap your payment screen with the StripeProvider component, or use the initStripe initialisation method.

<StripeProvider publishableKey={PUBLISHABLE_KEY}>
    <Navigation />
 </StripeProvider>

How to get PUBLISHABLE_KEY

Now in your component

Either use the Stripe UI or create your own custom UI for getting card details. In this answer, I'm using rn-credit-card for getting a card, which gives me customization options.

2) Get Card details, create Card Token and save for future use

import CreditCardForm, { FormModel } from "rn-credit-card";

const handleConfirm = (model: FormModel) => {
   axios
  .post(
    "https://api.stripe.com/v1/tokens",
    {
      "card[name]": model.holderName,
      "card[number]": model.cardNumber,
      "card[exp_month]": model.expiration.split("/")[0],
      "card[exp_year]": model.expiration.split("/")[1],
      "card[cvc]": model.cvv,
    },
    {
      headers: {
        Accept: "application/json",
        "Content-Type": "application/x-www-form-urlencoded",
        Authorization: `Bearer ${STRIPE_KEY}`,
      },
    }
  )
  .then((res) => {
    if (res?.data?.id) {
        //res?.data?.id It will return the payment method ID sent to your backend
        // You can also save it for future use by saving it in the database.
      console.log(res?.data?.id)
    }
  })
  .catch((err) => {
    Alert.alert("Stripe Error", err.message);
  });

};

For setting defaultValues

const formMethods = useForm<FormModel>({
mode: "onBlur",
defaultValues: {
  holderName: "",
  cardNumber: "",
  expiration: "",
  cvv: "",
},
 });
const { handleSubmit, formState } = formMethods;

Form to get card details

<CreditCardForm
        LottieView={LottieView}
        horizontalStart={false}
        overrides={{
          labelText: {
            marginTop: 16,
          },
        }}
      />
    {formState.isValid && (
      <Button
        style={styles.button}
        title={'CONFIRM PAYMENT'}
        onPress={handleSubmit(handleConfirm)}
      />
    )}

Now When you pay or checkout simple do the following step

3) Checkout or Payment Time

1. Create a PaymentIntent by passing the paymentMethods Id with other params like reservationId etc
2. The backend will return you clientSecret and also the calculated bill
3. Send the clientSecret to stripe

import { useStripe } from "@stripe/stripe-react-native";

  const { confirmPayment } = useStripe();
const handlePay = async () => {
setStripeLoading(true);
try {
//Step 1
  const response = await createPaymentIntent({
    variables: {
      paymentMethodId: paymentMethodId, // That you stored on the backend
      reserveId: id, // In our case reserveId is required 
      amountToDeduct: 23,
    },
  });
  if (response) {
      //Step 2 by getting clientSecret
    const { clientSecret } = response?.createPaymentIntent;
//sending clientSecret to deduct amount
    const { error, paymentIntent } = await confirmPayment(clientSecret);
    if (error) {
      setStripeLoading(false);
      Alert.alert(`Error code: ${error.code}`, error.message);
    }
    if (paymentIntent) {
      setStripeLoading(false);
      // Show Success Alert
    }
  }
} catch (error) {
  setStripeLoading(false);
} finally {
  setStripeLoading(false);
}
};

Tada you done