The client_secret Provided does not match any associated PaymentIntent on this account - flutter

Question

I'm trying to use flutter_stripe for a stripe connect account, But I always get the
same error: The client_secret provided doesn't match the client_secret associated with the PaymentIntend.
I've completed all steps according to flutter_stripe but I still face this error.
Below is my code Please check this and help me.
inde.js
const functions = require("firebase-functions");
const stripe = require("stripe")("secret_key");
exports.stripePaymentIntentRequest = functions.https.onRequest(async (req, res) => {
try {
let customerId;
//Gets the customer who's email id matches the one sent by the client
const customerList = await stripe.customers.list({
email: req.body.email,
limit: 1
});
//Checks the if the customer exists, if not creates a new customer
if (customerList.data.length !== 0) {
customerId = customerList.data[0].id;
}
else {
const customer = await stripe.customers.create({
email: req.body.email
});
customerId = customer.data.id;
}
//Creates a temporary secret key linked with the customer
const ephemeralKey = await stripe.ephemeralKeys.create(
{ customer: customerId },
{ apiVersion: '2020-08-27' }
);
//Creates a new payment intent with amount passed in from the client
const paymentIntent = await stripe.paymentIntents.create({
amount: parseInt(req.body.amount),
currency: 'usd',
customer: customerId,
})
res.status(200).send({
clientSecret: paymentIntent.client_secret,
paymentIntent: paymentIntent,
ephemeralKey: ephemeralKey.secret,
customer: customerId,
success: true,
})
} catch (error) {
res.status(404).send({ success: false, error: error.message })
}
});
PaymentService.dart
Future<void> initPaymentSheet(
{required BuildContext context, required String email, required int amount}) async {
try {
// 1. create payment intent on the server
final response = await http.post(
Uri.parse(
'Firebase api link of Functions'),
body: {
'email': email,
'amount': amount.toString(),
});
Map<String, dynamic> paymentIntentBody = jsonDecode(response.body);
log(paymentIntentBody.toString());
//2. initialize the payment sheet
await Stripe.instance.initPaymentSheet(
paymentSheetParameters: SetupPaymentSheetParameters(
paymentIntentClientSecret: paymentIntentBody["clientSecret"],
merchantDisplayName: 'Flutter Stripe Store Demo',
customerId: paymentIntentBody['customer'],
customerEphemeralKeySecret: paymentIntentBody['ephemeralKey'],
style: ThemeMode.light,
testEnv: true,
merchantCountryCode: 'US',
),
);
await Stripe.instance.presentPaymentSheet();
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('Payment completed!')),
);
} catch (e) {
if (e is StripeException) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Error from Stripe: ${e.error.localizedMessage}'),
),
);
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Error the Stripe of : $e')),
);
}
}
}
The log error print on my console is :
> [log] {paymentIntent:
> pi_3LI2acCTAUDjRNFV1Ra3dahz_secret_Fcqw73pWrE4avKRyuDVzRBitG,
> ephemeralKey:
> ek_test_YWNjdF8xSlQ3amtDVEFVRGpSTkZWLDl1OE5Vdm1jTGY4T1RpaVhHOTB3NTRVSkQ5UGl4azA_00j32OYG9n,
> customer: cus_LHG2YpQP9Cgwuy, success: true}

Answer 1

The following code is from a previous Stripe evaluation stage. But it worked. Slim it down to your needs.
Remember to publish your secret key to the server, so the server can talk to Stripe.
code.dart
Future<bool> payWithPaymentSheet(
ProductModel productModel, PriceModel priceModel,
{String merchantCountryCode = 'DE'}) async {
if (kIsWeb) {
throw 'Implementation not availabe on Flutter-WEB!';
}
String uid = AuthService.instance.currentUser().uid;
String email = AuthService.instance.currentUser().email ?? '';
HttpsCallableResult response;
try {
response = await FirebaseFunctions
.httpsCallable('createPaymentIntent')
.call(<String, dynamic>{
'amount': priceModel.unitAmount,
'currency': priceModel.currency,
'receipt_email': email,
'metadata': {
'product_id': productModel.id,
'user_id': uid,
"valid_until": productModel.getUntilDateTime().toIso8601String(),
'product_name': productModel.name.tr,
},
'testEnv': kDebugMode,
});
} on FirebaseFunctionsException catch (error) {
log(error.code);
log(error.details);
log(error.message ?? '(no message)');
Get.snackbar(
error.code,
error.message ?? '(no message)',
icon: const Icon(Icons.error_outline),
);
return false;
}
Map<String, dynamic> paymentIntentBody = response.data;
await Stripe.instance.initPaymentSheet(
paymentSheetParameters: SetupPaymentSheetParameters(
paymentIntentClientSecret: paymentIntentBody["clientSecret"],
currencyCode: priceModel.currency,
applePay: false,
googlePay: false,
merchantCountryCode: merchantCountryCode,
merchantDisplayName: Strings.appName,
testEnv: kDebugMode,
customerId: paymentIntentBody['customer'],
customerEphemeralKeySecret: paymentIntentBody['ephemeralKey'],
));
try {
await Stripe.instance.presentPaymentSheet();
return true;
} on StripeException catch (e) {
log(e.error.code.name);
log(e.error.message ?? '(no message)');
log(e.error.localizedMessage ?? '(no message)');
Get.snackbar(e.error.code.name, e.error.message ?? '',
icon: const Icon(Icons.error_outline));
} catch (e) {
Get.snackbar('An unforseen error occured', e.toString(),
icon: const Icon(Icons.error_outline));
}
return false;
}
index.ts
// SETTING SECRET KEY ON SERVER:
// cd functions
// firebase functions:config:set stripe.secret_key="sk_live_51L...Noe"
// firebase deploy --only functions
let stripe = require("stripe")(functions.config().stripe.secret_key);
exports.createPaymentIntent = functions
.https.onCall((data, context) => {
// if (!context.auth) {
// return { "access": false };
// }
return new Promise(function (resolve, reject) {
stripe.paymentIntents.create({
amount: data.amount,
currency: data.currency,
receipt_email: decodeURIComponent(data.receipt_email),
metadata: data.metadata,
}, function (err, paymentIntent) {
if (err != null) {
functions.logger.error("Error paymentIntent: ", err);
reject(err);
}
else {
resolve({
clientSecret: paymentIntent.client_secret,
paymentIntentData: paymentIntent,
});
}
});
});
});