Unicode C
Unicode C
Payeezy Place Temp Authorization Hold on Buyer’s Credit Card
See more HTTP Misc Examples
Demonstrates how to place a temporary authorization hold for the desired amount on the buyer’s credit card. You can Capture the authorized amount on completion of service or Void/Refund the transaction as required.Chilkat Unicode C Downloads
#include <C_CkCrypt2W.h>
#include <C_CkPrngW.h>
#include <C_CkDateTimeW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkHttpW.h>
#include <C_CkHttpResponseW.h>
void ChilkatSample(void)
{
BOOL success;
HCkCrypt2W crypt;
HCkPrngW prng;
const wchar_t *apiKey;
const wchar_t *apiSecret;
const wchar_t *token;
const wchar_t *nonce;
HCkDateTimeW dtNow;
HCkStringBuilderW sbTimestamp;
const wchar_t *timestamp;
HCkJsonObjectW json;
HCkStringBuilderW sbHmacData;
const wchar_t *hexHash;
HCkStringBuilderW sbBase64Hash;
HCkHttpW http;
const wchar_t *url;
HCkHttpResponseW resp;
success = FALSE;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
crypt = CkCrypt2W_Create();
prng = CkPrngW_Create();
// An API key such as y6pWAJNyJyjGv66IsVuWnklkKUPFbb0a
apiKey = L"my_api_key";
// An API secret such as 86fbae7030253af3cd15faef2a1f4b67353e41fb6799f576b5093ae52901e6f7
apiSecret = L"my_api_secret";
// A token such as fdoa-a480ce8951daa73262734cf102641994c1e55e7cdf4c02b6
token = L"my_merchant_token";
// The nonce is a random number (bytes), something like "6057786719490086000"
nonce = CkPrngW_genRandom(prng,8,L"decimal");
wprintf(L"nonce = %s\n",nonce);
dtNow = CkDateTimeW_Create();
CkDateTimeW_SetFromCurrentSystemTime(dtNow);
sbTimestamp = CkStringBuilderW_Create();
// Get the epoch timestamp in seconds
CkStringBuilderW_Append(sbTimestamp,CkDateTimeW_getAsUnixTimeStr(dtNow,FALSE));
// Change it to milliseconds
CkStringBuilderW_Append(sbTimestamp,L"000");
// The timestamp is a number similar to this: 1546011905000 (which is a timestamp taken on 28-Dec-2018).
timestamp = CkStringBuilderW_getAsString(sbTimestamp);
wprintf(L"timestamp = %s\n",timestamp);
// Generate the following JSON request body:
// {
// "merchant_ref": "Astonishing-Sale",
// "transaction_type": "authorize",
// "method": "credit_card",
// "amount": "1299",
// "currency_code": "USD",
// "credit_card": {
// "type": "visa",
// "cardholder_name": "John Smith",
// "card_number": "4788250000028291",
// "exp_date": "1020",
// "cvv": "123"
// }
// }
json = CkJsonObjectW_Create();
CkJsonObjectW_UpdateString(json,L"merchant_ref",L"Astonishing-Sale");
CkJsonObjectW_UpdateString(json,L"transaction_type",L"authorize");
CkJsonObjectW_UpdateString(json,L"method",L"credit_card");
CkJsonObjectW_UpdateString(json,L"amount",L"1299");
CkJsonObjectW_UpdateString(json,L"currency_code",L"USD");
CkJsonObjectW_UpdateString(json,L"credit_card.type",L"visa");
CkJsonObjectW_UpdateString(json,L"credit_card.cardholder_name",L"John Smith");
CkJsonObjectW_UpdateString(json,L"credit_card.card_number",L"4788250000028291");
CkJsonObjectW_UpdateString(json,L"credit_card.exp_date",L"1020");
CkJsonObjectW_UpdateString(json,L"credit_card.cvv",L"123");
CkJsonObjectW_putEmitCompact(json,FALSE);
wprintf(L"%s\n",CkJsonObjectW_emit(json));
// string hashData = apiKey + nonce + timestamp + token + jsonString;
sbHmacData = CkStringBuilderW_Create();
CkStringBuilderW_Append(sbHmacData,apiKey);
CkStringBuilderW_Append(sbHmacData,nonce);
CkStringBuilderW_Append(sbHmacData,timestamp);
CkStringBuilderW_Append(sbHmacData,token);
CkStringBuilderW_Append(sbHmacData,CkJsonObjectW_emit(json));
// HMAC the data to produce a hex string.
CkCrypt2W_putEncodingMode(crypt,L"hexlower");
CkCrypt2W_putMacAlgorithm(crypt,L"hmac");
CkCrypt2W_SetMacKeyString(crypt,apiSecret);
CkCrypt2W_putHashAlgorithm(crypt,L"sha256");
CkCrypt2W_putCharset(crypt,L"utf-8");
hexHash = CkCrypt2W_macStringENC(crypt,CkStringBuilderW_getAsString(sbHmacData));
wprintf(L"hexHash = %s\n",hexHash);
// Now base64 encode the hex string:
sbBase64Hash = CkStringBuilderW_Create();
CkStringBuilderW_Append(sbBase64Hash,hexHash);
CkStringBuilderW_Encode(sbBase64Hash,L"base64",L"utf-8");
wprintf(L"This is the Authorization header to be sent with the payeezy request:\n");
wprintf(L"Authorization: %s\n",CkStringBuilderW_getAsString(sbBase64Hash));
// -----------------------------------------------------------
// Now that we have the value for the Authorization header, send the POST containing the JSON.
http = CkHttpW_Create();
CkHttpW_putAccept(http,L"*/*");
CkHttpW_putUserAgent(http,L"");
CkHttpW_SetRequestHeader(http,L"Authorization",CkStringBuilderW_getAsString(sbBase64Hash));
CkHttpW_SetRequestHeader(http,L"apikey",apiKey);
CkHttpW_SetRequestHeader(http,L"nonce",nonce);
CkHttpW_SetRequestHeader(http,L"timestamp",timestamp);
CkHttpW_SetRequestHeader(http,L"token",token);
CkHttpW_putSessionLogFilename(http,L"qa_output/payeezy.txt");
url = L"https://api-cert.payeezy.com/v1/transactions";
resp = CkHttpResponseW_Create();
success = CkHttpW_HttpJson(http,L"POST",url,json,L"application/json",resp);
if (success == FALSE) {
wprintf(L"%s\n",CkHttpW_lastErrorText(http));
CkCrypt2W_Dispose(crypt);
CkPrngW_Dispose(prng);
CkDateTimeW_Dispose(dtNow);
CkStringBuilderW_Dispose(sbTimestamp);
CkJsonObjectW_Dispose(json);
CkStringBuilderW_Dispose(sbHmacData);
CkStringBuilderW_Dispose(sbBase64Hash);
CkHttpW_Dispose(http);
CkHttpResponseW_Dispose(resp);
return;
}
wprintf(L"response status code = %d\n",CkHttpResponseW_getStatusCode(resp));
CkJsonObjectW_Load(json,CkHttpResponseW_bodyStr(resp));
wprintf(L"%s\n",CkJsonObjectW_emit(json));
// Sample JSON response:
// {
// "correlation_id": "228.4604632998994",
// "transaction_status": "approved",
// "validation_status": "success",
// "transaction_type": "authorize",
// "transaction_id": "ET175628",
// "transaction_tag": "2313721985",
// "method": "credit_card",
// "amount": "1299",
// "currency": "USD",
// "cvv2": "M",
// "token": {
// "token_type": "FDToken",
// "token_data": {
// "value": "9732261336638291"
// }
// },
// "card": {
// "type": "visa",
// "cardholder_name": "John Smith",
// "card_number": "8291",
// "exp_date": "1020"
// },
// "bank_resp_code": "100",
// "bank_message": "Approved",
// "gateway_resp_code": "00",
// "gateway_message": "Transaction Normal"
// }
//
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"correlation_id"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"transaction_status"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"validation_status"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"transaction_type"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"transaction_id"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"transaction_tag"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"method"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"amount"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"currency"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"cvv2"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"token.token_type"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"token.token_data.value"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"card.type"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"card.cardholder_name"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"card.card_number"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"card.exp_date"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"bank_resp_code"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"bank_message"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"gateway_resp_code"));
wprintf(L"%s\n",CkJsonObjectW_stringOf(json,L"gateway_message"));
CkCrypt2W_Dispose(crypt);
CkPrngW_Dispose(prng);
CkDateTimeW_Dispose(dtNow);
CkStringBuilderW_Dispose(sbTimestamp);
CkJsonObjectW_Dispose(json);
CkStringBuilderW_Dispose(sbHmacData);
CkStringBuilderW_Dispose(sbBase64Hash);
CkHttpW_Dispose(http);
CkHttpResponseW_Dispose(resp);
}