``` 'YOUR_PUBLIC_KEY_ID', 'private_key' => 'keys/private.pem', // Path to RSA Private Key (or a string representation) 'region' => 'YOUR_REGION_CODE', 'algorithm' => 'AMZN-PAY-RSASSA-PSS-V2' ); try { $buyerToken = 'eyL7YthG12BvRUYiLCJlbmMiOiJBMjU2R0NNIiwidGFnIjoiNXQ3NmhOTVhKN0tidkpSbHR0WmggBn12JmnY6yI6IkExMjhHQ01LVyIsIml2IjoidXFUeWl5NzUtMlU1RVk0RyJ9.iy6tY93sESc2fHVj49ynJO3e45ZiGkpDbmVYjgAimiM.K4nVJFzrHV-Pbotw.CumBT12hN5Bih_V0UI635PuIZ_IAD-HcH42hy5NuliOhFoAoFf4uNnVpjjDbPWnkYcdgtettavJlKGPG5wG2zaHJc2AFODXuuHklYGUbOwX1Z9JBXJExXfcLyvM_d5Zh4eaXkJWB3BUCfrP4afG9llHmwOHRvORu4vyGzG4JuBrZVeZ69EK0yqDMOYgbR44Bospf9XCDeV_NQfkmZWerjHaWe_ltYgCEcbUQu4-Snb76NbVT8Uf85KNocQfi4SYJn5tUKTjh2uR9XHeQhQY.f7UR3zVnUDe_WfqsvrPMNw'; $client = new Amazon\Pay\API\Client($amazonpay_config); $result = $client->getBuyer($buyerToken); if ($result['status'] === 200) { $response = json_decode($result['response'], true); } else { // check the error echo 'status=' . $result['status'] . '; response=' . $result['response']; } } catch (Exception $e) { // handle the exception echo $e; } ?> ```

``` using Amazon.Pay.API; using Amazon.Pay.API.Types; using Amazon.Pay.API.WebStore; using Amazon.Pay.API.WebStore.Types; using Amazon.Pay.API.WebStore.Buyer; using Microsoft.AspNetCore.Mvc.RazorPages; public class Sample : PageModel { public BuyerResponse Buyer { get; private set; } public WebStoreClient InitiateClient() { // set up config var payConfiguration = new ApiConfiguration ( region: Region.YOUR_REGION_CODE, 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 void OnGet() { // the token as retrieved from the URL string buyerToken = HttpContext.Request.Query["buyerToken"]; // get the buyer details // NOTE: the BuyerResponse that is returned here contains properties for buyerId, name, email, shippingAddress, phoneNumber etc. Buyer = client.GetBuyer(buyerToken); if (!result.Success) { // handle the API error (use Status field to get the numeric error code) } else { // do something with the result, for instance: Address buyerAddress = result.ShippingAddress; string buyerEmail = result.Email; } } } ```

``` 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.Region; public void sample() { PayConfiguration payConfiguration = null; try { String buyerToken = "eyL7YthG12BvRUYiLCJlbmMiOiJBMjU2R0NNIiwidGFnIjoiNXQ3NmhOTVhKN0tidkpSbHR0WmggBn12JmnY6yI6IkExMjhHQ01LVyIsIml2IjoidXFUeWl5NzUtMlU1RVk0RyJ9.iy6tY93sESc2fHVj49ynJO3e45ZiGkpDbmVYjgAimiM.K4nVJFzrHV-Pbotw.CumBT12hN5Bih_V0UI635PuIZ_IAD-HcH42hy5NuliOhFoAoFf4uNnVpjjDbPWnkYcdgtettavJlKGPG5wG2zaHJc2AFODXuuHklYGUbOwX1Z9JBXJExXfcLyvM_d5Zh4eaXkJWB3BUCfrP4afG9llHmwOHRvORu4vyGzG4JuBrZVeZ69EK0yqDMOYgbR44Bospf9XCDeV_NQfkmZWerjHaWe_ltYgCEcbUQu4-Snb76NbVT8Uf85KNocQfi4SYJn5tUKTjh2uR9XHeQhQY.f7UR3zVnUDe_WfqsvrPMNw"; payConfiguration = new PayConfiguration() .setPublicKeyId("YOUR_PUBLIC_KEY_ID") .setRegion(Region.YOUR_REGION_CODE) .setPrivateKey("YOUR_PRIVATE_KEY".toCharArray()) .setAlgorithm("AMZN-PAY-RSASSA-PSS-V2"); WebstoreClient webstoreClient = new WebstoreClient(payConfiguration); AmazonPayResponse response = webstoreClient.getBuyer(buyerToken); } 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: 'YOUR_REGION_CODE', algorithm: 'AMZN-PAY-RSASSA-PSS-V2' }; const buyerToken = "eyL7YthG12BvRUYiLCJlbmMiOiJBMjU2R0NNIiwidGFnIjoiNXQ3NmhOTVhKN0tidkpSbHR0WmggBn12JmnY6yI6IkExMjhHQ01LVyIsIml2IjoidXFUeWl5NzUtMlU1RVk0RyJ9.iy6tY93sESc2fHVj49ynJO3e45ZiGkpDbmVYjgAimiM.K4nVJFzrHV-Pbotw.CumBT12hN5Bih_V0UI635PuIZ_IAD-HcH42hy5NuliOhFoAoFf4uNnVpjjDbPWnkYcdgtettavJlKGPG5wG2zaHJc2AFODXuuHklYGUbOwX1Z9JBXJExXfcLyvM_d5Zh4eaXkJWB3BUCfrP4afG9llHmwOHRvORu4vyGzG4JuBrZVeZ69EK0yqDMOYgbR44Bospf9XCDeV_NQfkmZWerjHaWe_ltYgCEcbUQu4-Snb76NbVT8Uf85KNocQfi4SYJn5tUKTjh2uR9XHeQhQY.f7UR3zVnUDe_WfqsvrPMNw"; const testPayClient = new Client.WebStoreClient(config); const response = testPayClient.getBuyer(buyerToken); response.then(function (result) { console.log(result.data); }).catch(err => { console.log(err); }); ```

``` 'YOUR_PUBLIC_KEY_ID', 'private_key' => 'keys/private.pem', // Path to RSA Private Key (or a string representation) 'region' => 'YOUR_REGION_CODE', 'sandbox' => true, 'algorithm' => 'AMZN-PAY-RSASSA-PSS-V2' ); try { $buyerToken = 'eyL7YthG12BvRUYiLCJlbmMiOiJBMjU2R0NNIiwidGFnIjoiNXQ3NmhOTVhKN0tidkpSbHR0WmggBn12JmnY6yI6IkExMjhHQ01LVyIsIml2IjoidXFUeWl5NzUtMlU1RVk0RyJ9.iy6tY93sESc2fHVj49ynJO3e45ZiGkpDbmVYjgAimiM.K4nVJFzrHV-Pbotw.CumBT12hN5Bih_V0UI635PuIZ_IAD-HcH42hy5NuliOhFoAoFf4uNnVpjjDbPWnkYcdgtettavJlKGPG5wG2zaHJc2AFODXuuHklYGUbOwX1Z9JBXJExXfcLyvM_d5Zh4eaXkJWB3BUCfrP4afG9llHmwOHRvORu4vyGzG4JuBrZVeZ69EK0yqDMOYgbR44Bospf9XCDeV_NQfkmZWerjHaWe_ltYgCEcbUQu4-Snb76NbVT8Uf85KNocQfi4SYJn5tUKTjh2uR9XHeQhQY.f7UR3zVnUDe_WfqsvrPMNw'; $client = new Amazon\Pay\API\Client($amazonpay_config); $result = $client->getBuyer($buyerToken); if ($result['status'] === 200) { $response = json_decode($result['response'], true); } else { // check the error echo 'status=' . $result['status'] . '; response=' . $result['response']; } } catch (Exception $e) { // handle the exception echo $e; } ?> ```

``` using Amazon.Pay.API; using Amazon.Pay.API.Types; using Amazon.Pay.API.WebStore; using Amazon.Pay.API.WebStore.Types; using Amazon.Pay.API.WebStore.Buyer; using Microsoft.AspNetCore.Mvc.RazorPages; public class Sample : PageModel { public BuyerResponse Buyer { get; private set; } public WebStoreClient InitiateClient() { // set up config var payConfiguration = new ApiConfiguration ( region: Region.YOUR_REGION_CODE, 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 void OnGet() { // the token as retrieved from the URL string buyerToken = HttpContext.Request.Query["buyerToken"]; // get the buyer details // NOTE: the BuyerResponse that is returned here contains properties for buyerId, name, email, shippingAddress, phoneNumber etc. Buyer = client.GetBuyer(buyerToken); if (!result.Success) { // handle the API error (use Status field to get the numeric error code) } else { // do something with the result, for instance: Address buyerAddress = result.ShippingAddress; string buyerEmail = result.Email; } } } ```

``` 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; public void sample() { PayConfiguration payConfiguration = null; try { String buyerToken = "eyL7YthG12BvRUYiLCJlbmMiOiJBMjU2R0NNIiwidGFnIjoiNXQ3NmhOTVhKN0tidkpSbHR0WmggBn12JmnY6yI6IkExMjhHQ01LVyIsIml2IjoidXFUeWl5NzUtMlU1RVk0RyJ9.iy6tY93sESc2fHVj49ynJO3e45ZiGkpDbmVYjgAimiM.K4nVJFzrHV-Pbotw.CumBT12hN5Bih_V0UI635PuIZ_IAD-HcH42hy5NuliOhFoAoFf4uNnVpjjDbPWnkYcdgtettavJlKGPG5wG2zaHJc2AFODXuuHklYGUbOwX1Z9JBXJExXfcLyvM_d5Zh4eaXkJWB3BUCfrP4afG9llHmwOHRvORu4vyGzG4JuBrZVeZ69EK0yqDMOYgbR44Bospf9XCDeV_NQfkmZWerjHaWe_ltYgCEcbUQu4-Snb76NbVT8Uf85KNocQfi4SYJn5tUKTjh2uR9XHeQhQY.f7UR3zVnUDe_WfqsvrPMNw"; payConfiguration = new PayConfiguration() .setPublicKeyId("YOUR_PUBLIC_KEY_ID") .setRegion(Region.YOUR_REGION_CODE) .setPrivateKey("YOUR_PRIVATE_KEY".toCharArray()) .setEnvironment(Environment.SANDBOX) .setAlgorithm("AMZN-PAY-RSASSA-PSS-V2"); WebstoreClient webstoreClient = new WebstoreClient(payConfiguration); AmazonPayResponse response = webstoreClient.getBuyer(buyerToken); } 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: 'YOUR_REGION_CODE', sandbox: true, algorithm: 'AMZN-PAY-RSASSA-PSS-V2' }; const buyerToken = "eyL7YthG12BvRUYiLCJlbmMiOiJBMjU2R0NNIiwidGFnIjoiNXQ3NmhOTVhKN0tidkpSbHR0WmggBn12JmnY6yI6IkExMjhHQ01LVyIsIml2IjoidXFUeWl5NzUtMlU1RVk0RyJ9.iy6tY93sESc2fHVj49ynJO3e45ZiGkpDbmVYjgAimiM.K4nVJFzrHV-Pbotw.CumBT12hN5Bih_V0UI635PuIZ_IAD-HcH42hy5NuliOhFoAoFf4uNnVpjjDbPWnkYcdgtettavJlKGPG5wG2zaHJc2AFODXuuHklYGUbOwX1Z9JBXJExXfcLyvM_d5Zh4eaXkJWB3BUCfrP4afG9llHmwOHRvORu4vyGzG4JuBrZVeZ69EK0yqDMOYgbR44Bospf9XCDeV_NQfkmZWerjHaWe_ltYgCEcbUQu4-Snb76NbVT8Uf85KNocQfi4SYJn5tUKTjh2uR9XHeQhQY.f7UR3zVnUDe_WfqsvrPMNw"; const testPayClient = new Client.WebStoreClient(config); const response = testPayClient.getBuyer(buyerToken); response.then(function (result) { console.log(result.data); }).catch(err => { console.log(err); }); ```

Parameter	Description
buyer Type: buyer	Details about the buyer, such as their unique identifier, name, and email

Parameter	Description
buyerId Type: string	Unique Amazon Pay buyer identifier
countryCode Type: string	Buyer default shipping address country
email Type: string	Buyer email address
name Type: string	Buyer name
postalCode Type: string	Buyer default shipping address postal code
shippingAddress Type: address	Buyer default shipping address
billingAddress Type: address	Buyer default billing address
phoneNumber Type: string	Buyer default billing address phone number
primeMembershipTypes Type: list<primeMembershipType>	List of buyer Prime memberships. This data is not available for general use

Parameter	Description
name Type: string	Address name Max length: 50 characters/bytes
addressLine1 Type: string	The first line of the address Max length: 180 characters/bytes
addressLine2 Type: string	The second line of the address Max length: 60 characters/bytes
addressLine3 Type: string	The third line of the address Max length: 60 characters/bytes
city Type: string	City of the address Max length: 50 characters/bytes
county Type: string	County of the address Max length: 50 characters/bytes
district Type: string	District of the address Max length: 50 characters/bytes
stateOrRegion Type: string	The state or region: US and CA addresses - Response will always be a 2-character code All other countries - This element is free text and can be either a 2-character code, fully spelled out, or abbreviated Max length: 50 characters/bytes
postalCode Type: string	Postal code of the address Max length: 20 characters/bytes
countryCode Type: string	Country code of the address in ISO 3166 format Max length: 3 characters/bytes
phoneNumber Type: string	Phone number Max length: 20 characters/bytes

Name	Location	Description
buyerToken (required) Type: string	Path Parameter	Token used to retrieve buyer details. This value is appended as a query parameter to `signInReturnUrl` Max length: 1000 characters/bytes

HTTP status code	Reason code	Description
400 BAD_REQUEST	InvalidBuyerToken	The token provided is expired, revoked, malformed, or invalid for some other reason