(Delphi DLL) Adyen Create Payment Session

Creates an Adyen payment session.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, StringBuilder, HttpResponse, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
success: Boolean;
json: HCkJsonObject;
resp: HCkHttpResponse;
sbResponseBody: HCkStringBuilder;
jResp: HCkJsonObject;
respStatusCode: Integer;
paymentSession: PWideChar;

begin
http := CkHttp_Create();

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

// The following JSON is sent in the request body, and is constructed by the code that follows.

// {
//   "merchantAccount": "YourMerchantAccount",
//   "sdkVersion": "1.9.7",
//   "channel": "Web",
//   "amount": {
//     "currency": "EUR",
//     "value": 17408
//   },
//   "reference": "Your order number",
//   "countryCode": "NL",
//   "shopperLocale": "nl_NL",
//   "origin": "https://www.yourshop.com",
//   "returnUrl": "https://www.yourshop.com/checkout/completed"
// }
json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'merchantAccount','YourMerchantAccount');
CkJsonObject_UpdateString(json,'sdkVersion','1.9.7');
CkJsonObject_UpdateString(json,'channel','Web');
CkJsonObject_UpdateString(json,'amount.currency','EUR');
CkJsonObject_UpdateInt(json,'amount.value',17408);
CkJsonObject_UpdateString(json,'reference','Your order number');
CkJsonObject_UpdateString(json,'countryCode','NL');
CkJsonObject_UpdateString(json,'shopperLocale','nl_NL');
CkJsonObject_UpdateString(json,'origin','https://www.yourshop.com');
CkJsonObject_UpdateString(json,'returnUrl','https://www.yourshop.com/checkout/completed');

CkHttp_SetRequestHeader(http,'X-API-Key','YourAPIkey');

resp := CkHttp_PostJson3(http,'https://checkout-test.adyen.com/v41/paymentSession','application/json',json);
if (CkHttp_getLastMethodSuccess(http) = 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);

respStatusCode := CkHttpResponse_getStatusCode(resp);
Memo1.Lines.Add('Status Code = ' + IntToStr(respStatusCode));
Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(CkJsonObject__emit(jResp));

if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(CkHttpResponse__header(resp));
    Memo1.Lines.Add('Failed.');
    CkHttpResponse_Dispose(resp);
    Exit;
  end;

CkHttpResponse_Dispose(resp);

// Sample JSON response:

// {
//   "paymentSession": "eyJjaGVja291 ... iMS45LjcifQ=="
// }

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

paymentSession := CkJsonObject__stringOf(jResp,'paymentSession');

CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);

end;