(CkPython) Payeezy Place Temp Authorization Hold on Buyer’s Credit Card

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.

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import sys
import chilkat

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

crypt = chilkat.CkCrypt2()
prng = chilkat.CkPrng()

# An API key such as y6pWAJNyJyjGv66IsVuWnklkKUPFbb0a
apiKey = "my_api_key"
# An API secret such as 86fbae7030253af3cd15faef2a1f4b67353e41fb6799f576b5093ae52901e6f7
apiSecret = "my_api_secret"
# A token such as fdoa-a480ce8951daa73262734cf102641994c1e55e7cdf4c02b6
token = "my_merchant_token"

# The nonce is a random number (bytes), something like "6057786719490086000"
nonce = prng.genRandom(8,"decimal")
print("nonce = " + nonce)

dtNow = chilkat.CkDateTime()
dtNow.SetFromCurrentSystemTime()
sbTimestamp = chilkat.CkStringBuilder()
# Get the epoch timestamp in seconds
sbTimestamp.Append(dtNow.getAsUnixTimeStr(False))
# Change it to milliseconds
sbTimestamp.Append("000")
# The timestamp is a number similar to this: 1546011905000 (which is a timestamp taken on 28-Dec-2018).
timestamp = sbTimestamp.getAsString()
print("timestamp = " + 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 = chilkat.CkJsonObject()
json.UpdateString("merchant_ref","Astonishing-Sale")
json.UpdateString("transaction_type","authorize")
json.UpdateString("method","credit_card")
json.UpdateString("amount","1299")
json.UpdateString("currency_code","USD")
json.UpdateString("credit_card.type","visa")
json.UpdateString("credit_card.cardholder_name","John Smith")
json.UpdateString("credit_card.card_number","4788250000028291")
json.UpdateString("credit_card.exp_date","1020")
json.UpdateString("credit_card.cvv","123")
json.put_EmitCompact(False)
print(json.emit())

# string hashData = apiKey + nonce + timestamp + token + jsonString;
sbHmacData = chilkat.CkStringBuilder()
sbHmacData.Append(apiKey)
sbHmacData.Append(nonce)
sbHmacData.Append(timestamp)
sbHmacData.Append(token)
sbHmacData.Append(json.emit())

# HMAC the data to produce a hex string.
crypt.put_EncodingMode("hexlower")
crypt.put_MacAlgorithm("hmac")
crypt.SetMacKeyString(apiSecret)
crypt.put_HashAlgorithm("sha256")
crypt.put_Charset("utf-8")
hexHash = crypt.macStringENC(sbHmacData.getAsString())
print("hexHash = " + hexHash)

# Now base64 encode the hex string:
sbBase64Hash = chilkat.CkStringBuilder()
sbBase64Hash.Append(hexHash)
sbBase64Hash.Encode("base64","utf-8")

print("This is the Authorization header to be sent with the payeezy request:")
print("Authorization: " + sbBase64Hash.getAsString())

# -----------------------------------------------------------
# Now that we have the value for the Authorization header, send the POST containing the JSON.

http = chilkat.CkHttp()

http.put_Accept("*/*")
http.put_UserAgent("")
http.SetRequestHeader("Authorization",sbBase64Hash.getAsString())
http.SetRequestHeader("apikey",apiKey)
http.SetRequestHeader("nonce",nonce)
http.SetRequestHeader("timestamp",timestamp)
http.SetRequestHeader("token",token)

http.put_SessionLogFilename("qa_output/payeezy.txt")

url = "https://api-cert.payeezy.com/v1/transactions"
# resp is a CkHttpResponse
resp = http.PostJson2(url,"application/json",json.emit())
if (http.get_LastMethodSuccess() != True):
    print(http.lastErrorText())
    sys.exit()

print("response status code = " + str(resp.get_StatusCode()))
json.Load(resp.bodyStr())
print(json.emit())

# 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"
# }
# 

print(json.stringOf("correlation_id"))
print(json.stringOf("transaction_status"))
print(json.stringOf("validation_status"))
print(json.stringOf("transaction_type"))
print(json.stringOf("transaction_id"))
print(json.stringOf("transaction_tag"))
print(json.stringOf("method"))
print(json.stringOf("amount"))
print(json.stringOf("currency"))
print(json.stringOf("cvv2"))
print(json.stringOf("token.token_type"))
print(json.stringOf("token.token_data.value"))
print(json.stringOf("card.type"))
print(json.stringOf("card.cardholder_name"))
print(json.stringOf("card.card_number"))
print(json.stringOf("card.exp_date"))
print(json.stringOf("bank_resp_code"))
print(json.stringOf("bank_message"))
print(json.stringOf("gateway_resp_code"))
print(json.stringOf("gateway_message"))