Delphi ActiveX 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 ActiveX

var
success: Integer;
http: TChilkatHttp;
json: TChilkatJsonObject;
privKey: TPrivateKey;
publicKeyId: WideString;
resp: TChilkatHttpResponse;
sbResponseBody: TChilkatStringBuilder;
jResp: TChilkatJsonObject;
respStatusCode: Integer;
trackingNumber: WideString;
carrierCode: WideString;
amazonOrderReferenceId: WideString;
i: Integer;
count_i: Integer;

begin
success := 0;

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

http := TChilkatHttp.Create(Self);

//  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 := TChilkatJsonObject.Create(Self);
json.UpdateString('amazonOrderReferenceId','P00-0000000-0000000');
json.UpdateString('deliveryDetails[0].trackingNumber','1Z999AA10123456784');
json.UpdateString('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 := TPrivateKey.Create(Self);
success := privKey.LoadPemFile('C:/someDir/myAmazonPayPrivateKey.pem');
if (success = 0) then
  begin
    Memo1.Lines.Add(privKey.LastErrorText);
    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 := http.SetAuthPrivateKey(publicKeyId,privKey.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    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

http.Accept := '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 := TChilkatHttpResponse.Create(Self);
success := http.HttpJson('POST','https://pay-api.amazon.eu/sandbox/v2/deliveryTrackers',json.ControlInterface,'application/json',resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

sbResponseBody := TChilkatStringBuilder.Create(Self);
resp.GetBodySb(sbResponseBody.ControlInterface);
jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);
jResp.EmitCompact := 0;

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

respStatusCode := resp.StatusCode;
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 := jResp.StringOf('amazonOrderReferenceId');
i := 0;
count_i := jResp.SizeOfArray('deliveryDetails');
while i < count_i do
  begin
    jResp.I := i;
    trackingNumber := jResp.StringOf('deliveryDetails[i].trackingNumber');
    carrierCode := jResp.StringOf('deliveryDetails[i].carrierCode');
    i := i + 1;
  end;