Lianja
Paynow.pl -- Make a Payment Request

Make a payment request POST with prepared message on Paynow payment request endpoint.
Chilkat Lianja Downloads

Lianja
llSuccess = .F.

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

loHttp = createobject("CkHttp")

// Implements the following CURL command:

// curl --request POST 'https://api.sandbox.paynow.pl/v1/payments' \
// -H 'Content-Type: application/json' \
// -H 'Api-Key: c12c386b-650b-43db-9430-d84fc05d9433' \
// -H 'Signature: aYPCytCoc+/wFgqHZJjgBCi20omXTn0yzm9LysJgnFo=' \
// -H 'Idempotency-Key: 59c6dd26-f905-487b-96c9-fd1d2bd76885' \
// --data-raw '{
//     "amount": 45671,
//     "externalId": "234567898654",
//     "description": "Test transaction",
//     "buyer": {
//         "email": "jan.kowalski@melements.pl"
//     }
// }'

// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP 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.

// {
//   "amount": 45671,
//   "externalId": "234567898654",
//   "description": "Test transaction",
//   "buyer": {
//     "email": "jan.kowalski@melements.pl"
//   }
// }

loJson = createobject("CkJsonObject")
loJson.UpdateInt("amount",45671)
loJson.UpdateString("externalId","234567898654")
loJson.UpdateString("description","Test transaction")
loJson.UpdateString("buyer.email","jan.kowalski@melements.pl")

lcMyApiAccessKey = "c12c386b-650b-43db-9430-d84fc05d9433"
lcMySigCalcKey = "b758f20d-ba92-44fa-acca-f57e99787b9d"

// Calculate the Signature header.
loCrypt = createobject("CkCrypt2")
loCrypt.MacAlgorithm = "hmac"
loCrypt.EncodingMode = "base64"
loCrypt.SetMacKeyString(lcMySigCalcKey)
loCrypt.HashAlgorithm = "SHA-256"
lcMessageBody = loJson.Emit()
lcSignature = loCrypt.MacStringENC(lcMessageBody)

loHttp.SetRequestHeader("Idempotency-Key",loCrypt.GenerateUuid())
loHttp.SetRequestHeader("Api-Key",lcMyApiAccessKey)
loHttp.SetRequestHeader("Signature",lcSignature)
loHttp.SetRequestHeader("Content-Type","application/json")
loHttp.Accept = "application/json"

loResp = createobject("CkHttpResponse")
llSuccess = loHttp.HttpJson("POST","https://api.sandbox.paynow.pl/v1/payments",loJson,"application/json",loResp)
if (llSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loJson
    release loCrypt
    release loResp
    return
endif

? "Response body:"
? loResp.BodyStr

// Sample response:
// {
//   "redirectUrl": "https://paywall.sandbox.paynow.pl/NOA0-YJ9-Y1P-29V?token=eyJraWQiOiJhMD ... L60wk",
//   "paymentId": "NOA0-YJ9-Y1P-29V",
//   "status": "NEW"
// }

loJsonResp = createobject("CkJsonObject")
loJsonResp.Load(loResp.BodyStr)
lcRedirectUrl = loJson.StringOf("redirectUrl")
lcPaymentId = loJson.StringOf("paymentId")
lcStatus = loJson.StringOf("status")


release loHttp
release loJson
release loCrypt
release loResp
release loJsonResp