```
'YOUR_PUBLIC_KEY_ID',
'private_key' => 'keys/private.pem', // Path to RSA Private Key (or a string representation)
'region' => 'eu',
'sandbox' => true,
'algorithm' => 'AMZN-PAY-RSASSA-PSS-V2'
);
$payload = array(
'webCheckoutDetails' => array(
'checkoutResultReturnUrl' => 'https://a.com/merchant-confirm-page'
),
'paymentDetails' => array(
'paymentIntent' => 'Authorize',
'canHandlePendingAuthorization' => false,
'chargeAmount' => array(
'amount' => '1',
'currencyCode' => 'CHF'
)
),
'merchantMetadata' => array(
'merchantReferenceId' => 'Merchant reference ID',
'merchantStoreName' => 'Merchant store name',
'noteToBuyer' => 'Note to buyer',
'customInformation' => 'Custom information'
),
'platformId' => 'SPId'
);
try {
$client = new Amazon\Pay\API\Client($amazonpay_config);
$result = $client->updateCheckoutSession('ada3f397-7d4b-4a55-abac-786685c02d8b', $payload);
if ($result['status'] === 201) {
$response = json_decode($result['response'], true);
$checkoutSessionId = $response['checkoutSessionId'];
} else {
// check the error
echo 'status=' . $result['status'] . '; response=' . $result['response'];
}
} catch (Exception $e) {
// handle the exception
echo $e;
}
?>
```
```
using Amazon.Pay.API.Types;
using Amazon.Pay.API.WebStore.CheckoutSession;
using Amazon.Pay.API.WebStore;
using Amazon.Pay.API.WebStore.Types;
public class Sample
{
public WebStoreClient InitiateClient()
{
// set up config
var payConfiguration = new ApiConfiguration
(
region: Region.Europe,
environment: Environment.Sandbox,
publicKeyId: "YOUR_PUBLIC_KEY_ID",
privateKey: "PATH_OR_CONTENT_OF_YOUR_PRIVATE_KEY",
algorithm: AmazonSignatureAlgorithm.V2
);
// init API client
var client = new WebStoreClient(payConfiguration);
return client;
}
public CheckoutSessionResponse UpdateCheckoutSession(string checkoutSessionId)
{
// prepare the request
var request = new UpdateCheckoutSessionRequest()
{
WebCheckoutDetails = {
CheckoutResultReturnUrl = "https://a.com/merchant-confirm-page"
},
PaymentDetails = {
ChargeAmount = {
Amount = 1.00M,
CurrencyCode = Currency.CHF
},
CanHandlePendingAuthorization = false,
PaymentIntent = PaymentIntent.Authorize
},
MerchantMetadata = {
MerchantReferenceId = "Merchant reference ID",
MerchantStoreName = "Merchant store name",
NoteToBuyer = "Note to buyer",
CustomInformation = "Custom information"
},
PlatformId = "SPId"
};
// send the request
var result = client.UpdateCheckoutSession(checkoutSessionId, request);
// check if API call was successful
if (!result.Success)
{
// do something, e.g. throw an error
}
return result;
}
}
```
```
import com.amazon.pay.api.AmazonPayResponse;
import com.amazon.pay.api.PayConfiguration;
import com.amazon.pay.api.WebstoreClient;
import com.amazon.pay.api.exceptions.AmazonPayClientException;
import com.amazon.pay.api.types.Environment;
import com.amazon.pay.api.types.Region;
import org.json.JSONObject;
public void sample() {
PayConfiguration payConfiguration = null;
try {
payConfiguration = new PayConfiguration()
.setPublicKeyId("YOUR_PUBLIC_KEY_ID")
.setRegion(Region.EU)
.setPrivateKey("YOUR_PRIVATE_KEY")
.setEnvironment(Environment.SANDBOX)
.setAlgorithm("AMZN-PAY-RSASSA-PSS-V2");
WebstoreClient webstoreClient = new WebstoreClient(payConfiguration);
AmazonPayResponse response = null;
String checkoutSessionId = "ada3f397-7d4b-4a55-abac-786685c02d8b";
JSONObject payload = new JSONObject();
JSONObject updateWebCheckoutDetails = new JSONObject();
updateWebCheckoutDetails.put("checkoutResultReturnUrl", "https://a.com/merchant-confirm-page");
payload.put("webCheckoutDetails", updateWebCheckoutDetails);
JSONObject paymentDetails = new JSONObject();
paymentDetails.put("paymentIntent" , "Authorize");
paymentDetails.put("canHandlePendingAuthorization", false);
JSONObject chargeAmount = new JSONObject();
chargeAmount.put("amount", "1");
chargeAmount.put("currencyCode", "CHF");
paymentDetails.put("chargeAmount", chargeAmount);
payload.put("paymentDetails", paymentDetails);
JSONObject merchantMetadata = new JSONObject();
merchantMetadata.put("merchantReferenceId", "Merchant reference ID");
merchantMetadata.put("merchantStoreName", "Merchant store name");
merchantMetadata.put("noteToBuyer", "Note to buyer");
merchantMetadata.put("customInformation", "Custom information");
payload.put("platformId", "SPId");
payload.put("merchantMetadata", merchantMetadata);
response = webstoreClient.updateCheckoutSession(checkoutSessionId, payload);
} catch (AmazonPayClientException e) {
e.printStackTrace();
}
}
```
```html
const fs = require('fs');
const Client = require('@amazonpay/amazon-pay-api-sdk-nodejs');
const config = {
publicKeyId: 'YOUR_PUBLIC_KEY_ID',
privateKey: fs.readFileSync('tst/private.pem'),
region: 'eu',
sandbox: true,
algorithm: 'AMZN-PAY-RSASSA-PSS-V2'
};
const payload = {
webCheckoutDetails: {
checkoutResultReturnUrl: "https://a.com/merchant-confirm-page"
},
paymentDetails: {
paymentIntent: "Authorize",
canHandlePendingAuthorization: false,
chargeAmount: {
amount: "1",
currencyCode: "CHF"
}
},
merchantMetadata: {
merchantReferenceId: "Merchant reference ID",
merchantStoreName: "Merchant store name",
noteToBuyer: "Note to buyer",
customInformation: "Custom information"
},
platformId: "SPId"
};
const testPayClient = new Client.WebStoreClient(config);
const response = testPayClient.updateCheckoutSession('ada3f397-7d4b-4a55-abac-786685c02d8b', payload);
response.then(function (result) {
console.log(result.data);
}).catch(err => {
console.log(err);
});
```