Delphi DLL

Adyen Create Payment Session

See more Adyen Examples

Creates an Adyen payment session. Delphi 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
success: Boolean;
http: HCkHttp;
json: HCkJsonObject;
resp: HCkHttpResponse;
sbResponseBody: HCkStringBuilder;
jResp: HCkJsonObject;
respStatusCode: Integer;
paymentSession: PWideChar;

begin
success := False;

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 := CkHttpResponse_Create();
success := CkHttp_HttpJson(http,'POST','https://checkout-test.adyen.com/v41/paymentSession',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);

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.');
    Exit;
  end;

// 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);
CkHttpResponse_Dispose(resp);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);

end;