Dart

Amazon Pay - Get Buyer

See more Amazon Pay Examples

Amazon Pay get buyer details. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  var success = false;

  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final http = CkHttp();

  // Implements the following CURL command:

  // curl "https://pay-api.amazon.com/:version/buyers/:buyerToken" \
  // 	-X GET
  // 	-H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
  // 	-H "x-amz-pay-date:20201012T235046Z"

  // Use the following online tool to generate HTTP code from a CURL command
  // Convert a cURL Command to HTTP Source Code

  // Load your Amazon Pay private key.  
  // There are many other ways to load private keys into the Chilkat private key object, such as from different formats,
  // or from in-memory strings or bytes.
  final privKey = CkPrivateKey();
  try {
    privKey.loadPemFile('C:/someDir/myAmazonPayPrivateKey.pem');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Provide your Amazon Pay private key and Public Key ID 
  // Use your public key ID here.  It must be the one associated with the private key.
  // Note: The SetAuthPrivateKey method was added in Chilkat v9.5.0.89
  final publicKeyId = 'SANDBOX-AHEGSJCM3L2S637RBGABLAFW';
  try {
    http.setAuthPrivateKey(publicKeyId, privKey);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Note: When the private key is provided as shown above, Chilkat will automatically add the required x-amz-pay-* headers to the HTTP request,
  // and will also sign the request.  Nothing more is needed.
  // Chilkat automatically generates and adds the following headers:
  // 
  // x-amz-pay-date
  // x-amz-pay-host
  // x-amz-pay-region
  // Authorization

  http.accept = 'application/json';

  var respStatusCode = 0;

  final sbResponseBody = CkStringBuilder();
  http.setUrlVar('buyerToken', 'BUYER_TOKEN');
  // To use the live system, replace "sandbox" with "live" in the URL passed to QuickGetSb.
  // Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
  success = true;
  try {
    http.quickGetSb('https://pay-api.amazon.eu/sandbox/v2/buyers/{\$buyerToken}', sbResponseBody);
  } on ChilkatException {
    success = false;
  }

  // Examine the request header we just sent..
  print(http.lastHeader);

  // GET /sandbox/v2/buyers/BUYER_TOKEN HTTP/1.1
  // Host: pay-api.amazon.eu
  // Accept: application/json
  // Accept-Encoding: gzip
  // x-amz-pay-date: 20250822T183232Z
  // x-amz-pay-host: pay-api.amazon.eu
  // x-amz-pay-region: EU
  // Authorization: AMZN-PAY-RSASSA-PSS PublicKeyId=SANDBOX-AF2AGWRNIPHP2S2TUFFBKDGM, SignedHeaders=accept;x-amz-pay-date;x-amz-pay-host;x-amz-pay-region, Signature=TK8gPPid/XN0mSNWpLlCX2AXPE .... dgzxSA+ZYrHt6Yg==

  if (!success) {
    // If the LastStatus is not equal to 0, then we received a response, but it was an error response.
    respStatusCode = http.lastStatus;
    if (respStatusCode != 0) {
      print('Response Status Code = $respStatusCode');
      // Here is a sample response body for the case where the buyer token does not exist:
      // {"reasonCode":"InvalidBuyerToken","message":"The token provided is expired, revoked, malformed, or invalid for other reasons."}

      print('Response body:');
      print(http.lastResponseBody);
    } else {
      print(http.lastErrorText);
    }

    return;
  }

  final jResp = CkJsonObject();
  jResp.loadSb(sbResponseBody);
  jResp.emitCompact = false;

  print('Response Body:');
  print(jResp.emit());

  respStatusCode = http.lastStatus;
  print('Response Status Code = $respStatusCode');
  // We expect a 200 status code for success.
  // Note: Some Amazon Pay API calls return 200 for success, others return 201.
  if (respStatusCode != 200) {
    print('Failed.');
    return;
  }

  // Sample JSON response:
  // (Sample code for parsing the JSON response is shown below)

  // {
  // 	"name": "John Example",
  // 	"email": "johnexample@amazon.com",
  // 	"postalCode": "12345",
  // 	"countryCode": "US",
  // 	"buyerId": "DIRECTEDBUYERID",
  // 	"phoneNumber": "1234567811" // default billing address phone number
  // 	"shippingAddress": {
  // 		"name": "John",
  // 		"addressLine1": "15th Street",
  // 		"addressLine2": "",
  // 		"addressLine3": "",
  // 		"city": "Seattle", 
  // 		"county": "",
  // 		"district": "",
  // 		"stateOrRegion": "WA",
  // 		"country": "USA",
  // 		"postalCode": "98121",
  // 		"phoneNumber": "1234567899"
  // 	},
  // 	"billingAddress": null,
  // 	"primeMembershipTypes": null
  // }

  // Sample code for parsing the JSON response...
  // Use the following online tool to generate parsing code from sample JSON:
  // Generate Parsing Code from JSON

  final name = jResp.stringOf('name');
  final email = jResp.stringOf('email');
  final postalCode = jResp.stringOf('postalCode');
  final countryCode = jResp.stringOf('countryCode');
  final buyerId = jResp.stringOf('buyerId');
  final phoneNumber = jResp.stringOf('phoneNumber');
  final shippingAddressName = jResp.stringOf('shippingAddress.name');
  final shippingAddressAddressLine1 = jResp.stringOf('shippingAddress.addressLine1');
  final shippingAddressAddressLine2 = jResp.stringOf('shippingAddress.addressLine2');
  final shippingAddressAddressLine3 = jResp.stringOf('shippingAddress.addressLine3');
  final shippingAddressCity = jResp.stringOf('shippingAddress.city');
  final shippingAddressCounty = jResp.stringOf('shippingAddress.county');
  final shippingAddressDistrict = jResp.stringOf('shippingAddress.district');
  final shippingAddressStateOrRegion = jResp.stringOf('shippingAddress.stateOrRegion');
  final shippingAddressCountry = jResp.stringOf('shippingAddress.country');
  final shippingAddressPostalCode = jResp.stringOf('shippingAddress.postalCode');
  final shippingAddressPhoneNumber = jResp.stringOf('shippingAddress.phoneNumber');
  final billingAddress = jResp.stringOf('billingAddress');
  final primeMembershipTypes = jResp.stringOf('primeMembershipTypes');
}