Delphi DLL Requires Chilkat v11.0.0+

Amazon Pay - Create Delivery Tracker

See more Amazon Pay Examples

Create a Delivery Tracker once an order has been shipped and a tracking code has been generated. Delphi DLL

var
success: Boolean;
http: HCkHttp;
json: HCkJsonObject;
privKey: HCkPrivateKey;
publicKeyId: PWideChar;
resp: HCkHttpResponse;
sbResponseBody: HCkStringBuilder;
jResp: HCkJsonObject;
respStatusCode: Integer;
trackingNumber: PWideChar;
carrierCode: PWideChar;
amazonOrderReferenceId: PWideChar;
i: Integer;
count_i: Integer;

begin
success := False;

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

http := CkHttp_Create();

//  Implements the following POST:

//  POST /:version/deliveryTrackers HTTP/1.1
//  Host: pay-api.amazon.com
//  Accept: application/json
//  Authorization: AMZN-PAY-RSASSA-PSS PublicKeyId=f4fc06fc-c5a7-11e7-abc4-cec278b6b50a, SignedHeaders=content-type;x-amz-pay-date, Signature=4164128ec5d1b9da1700167ab2ccda8125f472c8bb9de447cebf5d741ee317c8       
//  X-Amz-Pay-Date: 20190305T024410Z
//  Content-type: application/json
//  
//  {
//      "amazonOrderReferenceId" : "P00-0000000-0000000",
//      "deliveryDetails" : [{
//      "trackingNumber" : "1Z999AA10123456784",
//      "carrierCode" : "UPS"
//    }]
//  }

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

//  Use this online tool to generate code from sample JSON:
//  Generate Code to Create JSON

//  The following JSON is sent in the request body.

//  {
//      "amazonOrderReferenceId" : "P00-0000000-0000000",
//      "deliveryDetails" : [{
//      "trackingNumber" : "1Z999AA10123456784",
//      "carrierCode" : "UPS"
//    }]
//  }

json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'amazonOrderReferenceId','P00-0000000-0000000');
CkJsonObject_UpdateString(json,'deliveryDetails[0].trackingNumber','1Z999AA10123456784');
CkJsonObject_UpdateString(json,'deliveryDetails[0].carrierCode','UPS');

//  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.
privKey := CkPrivateKey_Create();
success := CkPrivateKey_LoadPemFile(privKey,'C:/someDir/myAmazonPayPrivateKey.pem');
if (success = False) then
  begin
    Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
    Exit;
  end;

//  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
publicKeyId := 'SANDBOX-AHEGSJCM3L2S637RBGABLAFW';
success := CkHttp_SetAuthPrivateKey(http,publicKeyId,privKey);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

//  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
//  x-amz-pay-idempotency-key
//  Authorization

CkHttp_putAccept(http,'application/json');

//  To use the live system, replace "sandbox" with "live" in the URL passed to HttpJson.
//  Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
resp := CkHttpResponse_Create();
success := CkHttp_HttpJson(http,'POST','https://pay-api.amazon.eu/sandbox/v2/deliveryTrackers',json,'application/json',resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

sbResponseBody := CkStringBuilder_Create();
CkHttpResponse_GetBodySb(resp,sbResponseBody);
jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,False);

//  If the status code is not equal to 200, this will display error information.
Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(CkJsonObject__emit(jResp));

respStatusCode := CkHttpResponse_getStatusCode(resp);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode <> 200) then
  begin
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

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

//  {
//      "amazonOrderReferenceId": "P00-0000000-0000000",
//      "deliveryDetails": [{
//          "trackingNumber": "1Z999AA10123456784",
//          "carrierCode": "UPS"
//      }]
//  }

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

amazonOrderReferenceId := CkJsonObject__stringOf(jResp,'amazonOrderReferenceId');
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'deliveryDetails');
while i < count_i do
  begin
    CkJsonObject_putI(jResp,i);
    trackingNumber := CkJsonObject__stringOf(jResp,'deliveryDetails[i].trackingNumber');
    carrierCode := CkJsonObject__stringOf(jResp,'deliveryDetails[i].carrierCode');
    i := i + 1;
  end;

CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkPrivateKey_Dispose(privKey);
CkHttpResponse_Dispose(resp);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);