---
title: "Online banking Poland Flutter Drop-in"
description: "Add Online banking Poland to your Drop-in integration."
url: "https://docs.adyen.com/payment-methods/online-banking-poland/flutter-drop-in"
source_url: "https://docs.adyen.com/payment-methods/online-banking-poland/flutter-drop-in.md"
canonical: "https://docs.adyen.com/payment-methods/online-banking-poland/flutter-drop-in"
last_modified: "2026-05-23T12:56:20+02:00"
language: "en"
---

# Online banking Poland Flutter Drop-in

Add Online banking Poland to your Drop-in integration.

[View source](/payment-methods/online-banking-poland/flutter-drop-in.md)

You can add Online banking Poland to your existing integration. The following instructions show only what you must add to your integration specifically for Online banking Poland.

If an instruction on this page corresponds with a step in the main integration guide, it includes a link to corresponding step of the main integration guide.

The additions you must make depends on the [server-side flow](/online-payments/build-your-integration) that your integration uses:

## Sessions flow Drop-in

### Before-You-Begin

## Requirements

| Requirement           | Description                                                                                                                                                                                                               |   |
| --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | - |
| **Integration type**  | Make sure that you have an existing Sessions flow [Flutter Drop-in integration](/online-payments/build-your-integration/advanced-flow?platform=Flutter\&integration=Drop-in).                                             |   |
| **Checkout API**      | Make sure that you use Checkout API v68 or later.                                                                                                                                                                         |   |
| **Redirect handling** | Make sure that your existing integration is set up to [handle the redirect](/online-payments/build-your-integration/sessions-flow?platform=Flutter\&integration=Drop-in#handle-the-redirect). `action.type`: **redirect** |   |
| **Setup steps**       | Before you begin, contact our [Support Team](https://ca-test.adyen.com/ca/ca/contactUs/support.shtml?form=other) to add Online banking Poland in your Customer Area.                                                      |   |

### Add-Parameters-Sessions-Request

## Add additional parameters to your /sessions request

When you [create a payment session](/online-payments/build-your-integration/sessions-flow?platform=Flutter\&integration=Drop-in#create-a-payment-session), add the following parameters:

| Parameter                                                                                              | Required                                                                                    | Description                                                 |
| ------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| [shopperEmail](https://docs.adyen.com/api-explorer/Checkout/latest/post/sessions#request-shopperEmail) | ![-white\_check\_mark-](/user/data/smileys/emoji/white_check_mark.png "-white_check_mark-") | The shopper's email address. Must be 50 or less characters. |

**Example /sessions request**

#### curl

```bash
curl https://checkout-test.adyen.com/v71/sessions \
-H 'x-API-key: ADYEN_API_KEY' \
-H 'Idempotency-Key: YOUR_IDEMPOTENCY_KEY' \
-H 'content-type: application/json' \
-X POST
-d '{
  "merchantAccount": "ADYEN_MERCHANT_ACCOUNT",
  "amount": {
      "value": 1000,
      "currency": "PLN"
  },
  "returnUrl": "adyencheckout://your.package.name",
  "reference": "YOUR_PAYMENT_REFERENCE",
  "countryCode": "PL",
  "shopperEmail": "s.hopper@example.com"
}'
```

#### Java

```java
// Adyen Java API Library v40.0.0
import com.adyen.Client;
import com.adyen.enums.Environment;
import com.adyen.model.checkout.*;
import java.time.OffsetDateTime;
import java.util.*;
import com.adyen.model.RequestOptions;
import com.adyen.service.checkout.*;

// For the LIVE environment, also include your liveEndpointUrlPrefix.
Client client = new Client("ADYEN_API_KEY", Environment.TEST);

// Create the request object(s)
// Send the request
PaymentsApi service = new PaymentsApi(client);
CreateCheckoutSessionResponse response = service.sessions(createCheckoutSessionRequest, new RequestOptions().idempotencyKey("UUID"));
```

#### PHP

```php
<?php
// Adyen PHP API Library v28.3.0
use Adyen\Client;
use Adyen\Environment;
use Adyen\Service\Checkout\PaymentsApi;

$client = new Client();
$client->setXApiKey("ADYEN_API_KEY");
// For the LIVE environment, also include your liveEndpointUrlPrefix.
$client->setEnvironment(Environment::TEST);


// Create the request object(s)
$requestOptions['idempotencyKey'] = 'UUID';

// Send the request
$service = new PaymentsApi($client);
$response = $service->sessions($createCheckoutSessionRequest, $requestOptions);
```

#### C\#

```cs
// Adyen .NET API Library v32.2.1
using Adyen;
using Environment = Adyen.Model.Environment;
using Adyen.Model;
using Adyen.Model.Checkout;
using Adyen.Service.Checkout;

// For the LIVE environment, also include your liveEndpointUrlPrefix.
var config = new Config()
{
    XApiKey = "ADYEN_API_KEY",
    Environment = Environment.Test
};
var client = new Client(config);

// Create the request object(s)
// Send the request
var service = new PaymentsService(client);
var response = service.Sessions(createCheckoutSessionRequest, requestOptions: new RequestOptions { IdempotencyKey = "UUID"});
```

#### NodeJS (JavaScript)

```js
// Adyen Node API Library v30.0.0
const { Client, CheckoutAPI } = require('@adyen/api-library');

// For the LIVE environment, also include your liveEndpointUrlPrefix.
const config = new Config({
  apiKey: "ADYEN_API_KEY",
  environment: EnvironmentEnum.TEST
});

const client = new Client(config);

// Create the request object(s)
const createCheckoutSessionRequest = {
  merchantAccount: "ADYEN_MERCHANT_ACCOUNT",
  amount: {
    value: 1000,
    currency: "PLN"
  },
  returnUrl: "adyencheckout://your.package.name",
  reference: "YOUR_PAYMENT_REFERENCE",
  countryCode: "PL",
  shopperEmail: "s.hopper@example.com"
}

// Send the request
const checkoutAPI = new CheckoutAPI(client);
const response = checkoutAPI.PaymentsApi.sessions(createCheckoutSessionRequest, { idempotencyKey: "UUID" });
```

#### Go

```go
// Adyen Go API Library v21.1.0
import (
  "context"
  "github.com/adyen/adyen-go-api-library/v21/src/common"
  "github.com/adyen/adyen-go-api-library/v21/src/adyen"
  "github.com/adyen/adyen-go-api-library/v21/src/checkout"
)
// For the LIVE environment, also include your liveEndpointUrlPrefix.
client := adyen.NewClient(&common.Config{
  ApiKey:      "ADYEN_API_KEY",
  Environment: common.TestEnv,
})

// Create the request object(s)
// Send the request
service := client.Checkout()
req := service.PaymentsApi.SessionsInput().IdempotencyKey("UUID").CreateCheckoutSessionRequest(createCheckoutSessionRequest)
res, httpRes, err := service.PaymentsApi.Sessions(context.Background(), req)
```

#### Python

```py
# Adyen Python API Library v14.0.0
import Adyen

adyen = Adyen.Adyen()
adyen.client.xapikey = "ADYEN_API_KEY"
# For the LIVE environment, also include your liveEndpointUrlPrefix.
adyen.client.platform = "test" # The environment to use library in.

# Create the request object(s)
json_request = {
  "merchantAccount": "ADYEN_MERCHANT_ACCOUNT",
  "amount": {
    "value": 1000,
    "currency": "PLN"
  },
  "returnUrl": "adyencheckout://your.package.name",
  "reference": "YOUR_PAYMENT_REFERENCE",
  "countryCode": "PL",
  "shopperEmail": "s.hopper@example.com"
}

# Send the request
result = adyen.checkout.payments_api.sessions(request=json_request, idempotency_key="UUID")
```

#### Ruby

```rb
# Adyen Ruby API Library v11.0.0
require "adyen-ruby-api-library"

adyen = Adyen::Client.new
adyen.api_key = 'ADYEN_API_KEY'
# For the LIVE environment, also include your liveEndpointUrlPrefix.
adyen.env = :test # Set to "live" for live environment

# Create the request object(s)
request_body = {
  :merchantAccount => 'ADYEN_MERCHANT_ACCOUNT',
  :amount => {
    :value => 1000,
    :currency => 'PLN'
  },
  :returnUrl => 'adyencheckout://your.package.name',
  :reference => 'YOUR_PAYMENT_REFERENCE',
  :countryCode => 'PL',
  :shopperEmail => 's.hopper@example.com'
}

# Send the request
result = adyen.checkout.payments_api.sessions(request_body, headers: { 'Idempotency-Key' => 'UUID' })
```

#### NodeJS (TypeScript)

```ts
// Adyen Node API Library v30.0.0
import { Client, CheckoutAPI, Types } from "@adyen/api-library";

// For the LIVE environment, also include your liveEndpointUrlPrefix.
const config = new Config({
  apiKey: "ADYEN_API_KEY",
  environment: EnvironmentEnum.TEST
});

const client = new Client(config);

// Create the request object(s)
// Send the request
const checkoutAPI = new CheckoutAPI(client);
const response = checkoutAPI.PaymentsApi.sessions(createCheckoutSessionRequest, { idempotencyKey: "UUID" });
```

### Add-Configuration

## Add additional configuration for Online banking Poland

You do not need to add any configuration parameters for Online banking Poland.

## Test and go live

Check the status of Online banking Poland test payments in your [Customer Area](https://ca-test.adyen.com/) > **Transactions** > **Payments**.

Before you can accept live Online banking Poland payments, you need to [submit a request for Online banking Poland](/payment-methods/add-payment-methods) in your [live Customer Area](https://ca-live.adyen.com/).

## Advanced flow Drop-in

### Before-You-Begin

## Requirements

| Requirement           | Description                                                                                                                                                                                                                |   |
| --------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | - |
| **Integration type**  | Make sure that you have an existing Advanced flow [Flutter Drop-in integration](/online-payments/build-your-integration/advanced-flow?platform=Flutter\&integration=Drop-in).                                              |   |
| **Redirect handling** | Make sure that your existing integration is set up to [handle the redirect](/online-payments/build-your-integration/advanced-flow/?platform=Flutter\&integration=Drop-in#handle-the-redirect). `action.type`: **redirect** |   |
| **Setup steps**       | Before you begin, [add Online banking Poland in your Customer Area](/payment-methods/add-payment-methods).                                                                                                                 |   |

### Add-Configuration

## Add additional configuration for Online banking Poland

You do not need to add any configuration parameters for Online banking Poland.

### Add-Parameters-Payments-Request

## Add additional parameters to your /payments request

When you [make a payment](/online-payments/build-your-integration/advanced-flow/?platform=Flutter\&integration=Drop-in#make-a-payment), add the following parameters to the [/payments](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments) request:

| Parameter                                                                                              | Required                                                                                    | Description                                                 |
| ------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| [shopperEmail](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments#request-shopperEmail) | ![-white\_check\_mark-](/user/data/smileys/emoji/white_check_mark.png "-white_check_mark-") | The shopper's email address. Must be 50 or less characters. |
| `paymentMethod.issuer`                                                                                 |                                                                                             | The issuer ID of the shopper's selected bank.               |

**Example payment request for Online banking Poland**

#### curl

```bash
curl https://checkout-test.adyen.com/v72/payments \
-H 'x-API-key: ADYEN_API_KEY' \
-H 'idempotency-key: YOUR_IDEMPOTENCY_KEY' \
-H 'content-type: application/json' \
-X POST
-d '{
  "amount":{
    "currency":"PLN",
    "value":1000
  },
  "reference":"YOUR_ORDER_NUMBER",
  "paymentMethod":{
    "type":"onlineBanking_PL",
    "issuer":"141"
    },
  "returnUrl":"https://your-company.com/checkout?shopperOrder=12xy..",
  "merchantAccount":"ADYEN_MERCHANT_ACCOUNT",
  "shopperEmail":"s.hopper@example.com"
}'
```

#### Java

```java
// Adyen Java API Library v40.0.0
import com.adyen.Client;
import com.adyen.enums.Environment;
import com.adyen.model.checkout.*;
import java.time.OffsetDateTime;
import java.util.*;
import com.adyen.model.RequestOptions;
import com.adyen.service.checkout.*;

// For the LIVE environment, also include your liveEndpointUrlPrefix.
Client client = new Client("ADYEN_API_KEY", Environment.TEST);

// Create the request object(s)
Amount amount = new Amount()
  .currency("PLN")
  .value(1000L);

GenericIssuerPaymentMethodDetails genericIssuerPaymentMethodDetails = new GenericIssuerPaymentMethodDetails()
  .type(GenericIssuerPaymentMethodDetails.TypeEnum.ONLINEBANKING_PL)
  .issuer("141");

PaymentRequest paymentRequest = new PaymentRequest()
  .reference("YOUR_ORDER_NUMBER")
  .amount(amount)
  .merchantAccount("ADYEN_MERCHANT_ACCOUNT")
  .paymentMethod(new CheckoutPaymentMethod(genericIssuerPaymentMethodDetails))
  .shopperEmail("s.hopper@example.com")
  .returnUrl("https://your-company.com/checkout?shopperOrder=12xy..");

// Send the request
PaymentsApi service = new PaymentsApi(client);
PaymentResponse response = service.payments(paymentRequest, new RequestOptions().idempotencyKey("UUID"));
```

#### PHP

```php
<?php
// Adyen PHP API Library v28.3.0
use Adyen\Client;
use Adyen\Environment;
use Adyen\Model\Checkout\Amount;
use Adyen\Model\Checkout\CheckoutPaymentMethod;
use Adyen\Model\Checkout\PaymentRequest;
use Adyen\Service\Checkout\PaymentsApi;

$client = new Client();
$client->setXApiKey("ADYEN_API_KEY");
// For the LIVE environment, also include your liveEndpointUrlPrefix.
$client->setEnvironment(Environment::TEST);


// Create the request object(s)
$amount = new Amount();
$amount
  ->setCurrency("PLN")
  ->setValue(1000);

$checkoutPaymentMethod = new CheckoutPaymentMethod();
$checkoutPaymentMethod
  ->setType("onlineBanking_PL")
  ->setIssuer("141");

$paymentRequest = new PaymentRequest();
$paymentRequest
  ->setReference("YOUR_ORDER_NUMBER")
  ->setAmount($amount)
  ->setMerchantAccount("ADYEN_MERCHANT_ACCOUNT")
  ->setPaymentMethod($checkoutPaymentMethod)
  ->setShopperEmail("s.hopper@example.com")
  ->setReturnUrl("https://your-company.com/checkout?shopperOrder=12xy..");

$requestOptions['idempotencyKey'] = 'UUID';

// Send the request
$service = new PaymentsApi($client);
$response = $service->payments($paymentRequest, $requestOptions);
```

#### C\#

```cs
// Adyen .NET API Library v32.2.1
using Adyen;
using Environment = Adyen.Model.Environment;
using Adyen.Model;
using Adyen.Model.Checkout;
using Adyen.Service.Checkout;

// For the LIVE environment, also include your liveEndpointUrlPrefix.
var config = new Config()
{
    XApiKey = "ADYEN_API_KEY",
    Environment = Environment.Test
};
var client = new Client(config);

// Create the request object(s)
Amount amount = new Amount
{
  Currency = "PLN",
  Value = 1000
};

GenericIssuerPaymentMethodDetails genericIssuerPaymentMethodDetails = new GenericIssuerPaymentMethodDetails
{
  Type = GenericIssuerPaymentMethodDetails.TypeEnum.OnlineBankingPL,
  Issuer = "141"
};

PaymentRequest paymentRequest = new PaymentRequest
{
  Reference = "YOUR_ORDER_NUMBER",
  Amount = amount,
  MerchantAccount = "ADYEN_MERCHANT_ACCOUNT",
  PaymentMethod = new CheckoutPaymentMethod(genericIssuerPaymentMethodDetails),
  ShopperEmail = "s.hopper@example.com",
  ReturnUrl = "https://your-company.com/checkout?shopperOrder=12xy.."
};

// Send the request
var service = new PaymentsService(client);
var response = service.Payments(paymentRequest, requestOptions: new RequestOptions { IdempotencyKey = "UUID"});
```

#### NodeJS (JavaScript)

```js
// Adyen Node API Library v30.0.0
const { Client, CheckoutAPI } = require('@adyen/api-library');

// For the LIVE environment, also include your liveEndpointUrlPrefix.
const config = new Config({
  apiKey: "ADYEN_API_KEY",
  environment: EnvironmentEnum.TEST
});

const client = new Client(config);

// Create the request object(s)
const paymentRequest = {
  amount: {
    currency: "PLN",
    value: 1000
  },
  reference: "YOUR_ORDER_NUMBER",
  paymentMethod: {
    type: "onlineBanking_PL",
    issuer: "141"
  },
  returnUrl: "https://your-company.com/checkout?shopperOrder=12xy..",
  merchantAccount: "ADYEN_MERCHANT_ACCOUNT",
  shopperEmail: "s.hopper@example.com"
}

// Send the request
const checkoutAPI = new CheckoutAPI(client);
const response = checkoutAPI.PaymentsApi.payments(paymentRequest, { idempotencyKey: "UUID" });
```

#### Go

```go
// Adyen Go API Library v21.1.0
import (
  "context"
  "github.com/adyen/adyen-go-api-library/v21/src/common"
  "github.com/adyen/adyen-go-api-library/v21/src/adyen"
  "github.com/adyen/adyen-go-api-library/v21/src/checkout"
)
// For the LIVE environment, also include your liveEndpointUrlPrefix.
client := adyen.NewClient(&common.Config{
  ApiKey:      "ADYEN_API_KEY",
  Environment: common.TestEnv,
})

// Create the request object(s)
amount := checkout.Amount{
  Currency: "PLN",
  Value: 1000,
}

genericIssuerPaymentMethodDetails := checkout.GenericIssuerPaymentMethodDetails{
  Type: "onlineBanking_PL",
  Issuer: "141",
}

paymentRequest := checkout.PaymentRequest{
  Reference: "YOUR_ORDER_NUMBER",
  Amount: amount,
  MerchantAccount: "ADYEN_MERCHANT_ACCOUNT",
  PaymentMethod: checkout.GenericIssuerPaymentMethodDetailsAsCheckoutPaymentMethod(&genericIssuerPaymentMethodDetails),
  ShopperEmail: common.PtrString("s.hopper@example.com"),
  ReturnUrl: "https://your-company.com/checkout?shopperOrder=12xy..",
}

// Send the request
service := client.Checkout()
req := service.PaymentsApi.PaymentsInput().IdempotencyKey("UUID").PaymentRequest(paymentRequest)
res, httpRes, err := service.PaymentsApi.Payments(context.Background(), req)
```

#### Python

```py
# Adyen Python API Library v14.0.0
import Adyen

adyen = Adyen.Adyen()
adyen.client.xapikey = "ADYEN_API_KEY"
# For the LIVE environment, also include your liveEndpointUrlPrefix.
adyen.client.platform = "test" # The environment to use library in.

# Create the request object(s)
json_request = {
  "amount": {
    "currency": "PLN",
    "value": 1000
  },
  "reference": "YOUR_ORDER_NUMBER",
  "paymentMethod": {
    "type": "onlineBanking_PL",
    "issuer": "141"
  },
  "returnUrl": "https://your-company.com/checkout?shopperOrder=12xy..",
  "merchantAccount": "ADYEN_MERCHANT_ACCOUNT",
  "shopperEmail": "s.hopper@example.com"
}

# Send the request
result = adyen.checkout.payments_api.payments(request=json_request, idempotency_key="UUID")
```

#### Ruby

```rb
# Adyen Ruby API Library v11.0.0
require "adyen-ruby-api-library"

adyen = Adyen::Client.new
adyen.api_key = 'ADYEN_API_KEY'
# For the LIVE environment, also include your liveEndpointUrlPrefix.
adyen.env = :test # Set to "live" for live environment

# Create the request object(s)
request_body = {
  :amount => {
    :currency => 'PLN',
    :value => 1000
  },
  :reference => 'YOUR_ORDER_NUMBER',
  :paymentMethod => {
    :type => 'onlineBanking_PL',
    :issuer => '141'
  },
  :returnUrl => 'https://your-company.com/checkout?shopperOrder=12xy..',
  :merchantAccount => 'ADYEN_MERCHANT_ACCOUNT',
  :shopperEmail => 's.hopper@example.com'
}

# Send the request
result = adyen.checkout.payments_api.payments(request_body, headers: { 'Idempotency-Key' => 'UUID' })
```

#### NodeJS (TypeScript)

```ts
// Adyen Node API Library v30.0.0
import { Client, CheckoutAPI, Types } from "@adyen/api-library";

// For the LIVE environment, also include your liveEndpointUrlPrefix.
const config = new Config({
  apiKey: "ADYEN_API_KEY",
  environment: EnvironmentEnum.TEST
});

const client = new Client(config);

// Create the request object(s)
const amount: Types.checkout.Amount = {
  currency: "PLN",
  value: 1000
};

const genericIssuerPaymentMethodDetails: Types.checkout.GenericIssuerPaymentMethodDetails = {
  type: Types.checkout.GenericIssuerPaymentMethodDetails.TypeEnum.OnlineBankingPl,
  issuer: "141"
};

const paymentRequest: Types.checkout.PaymentRequest = {
  reference: "YOUR_ORDER_NUMBER",
  amount: amount,
  merchantAccount: "ADYEN_MERCHANT_ACCOUNT",
  paymentMethod: genericIssuerPaymentMethodDetails,
  shopperEmail: "s.hopper@example.com",
  returnUrl: "https://your-company.com/checkout?shopperOrder=12xy.."
};

// Send the request
const checkoutAPI = new CheckoutAPI(client);
const response = checkoutAPI.PaymentsApi.payments(paymentRequest, { idempotencyKey: "UUID" });
```

The response includes `action.type`: **redirect**.

**Example response with a redirect action**

```json
{
    "resultCode":"RedirectShopper",
    "action":{
        "paymentMethodType":"onlineBanking_PL",
        "method":"GET",
        "url":"https://checkoutshopper-test.adyen.com/checkoutshopper/checkoutPaymentRedirect?redirectData=...",
        "type":"redirect"
    }
}
```

## Test and go live

Check the status of Online banking Poland test payments in your [Customer Area](https://ca-test.adyen.com/) > **Transactions** > **Payments**.

Before you can accept live Online banking Poland payments, you need to [submit a request for Online banking Poland](/payment-methods/add-payment-methods) in your [live Customer Area](https://ca-live.adyen.com/).