B4X

Paynow.pl -- Make a Payment Request

See more Paynow.pl Examples

Make a payment request POST with prepared message on Paynow payment request endpoint. B4X

Dim success As Boolean = False

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

Dim http As ChilkatHttp
http.Initialize("http")

'  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"
'    }
'  }

Dim json As ChilkatJsonObject
json.Initialize
json.UpdateInt("amount", 45671)
json.UpdateString("externalId", "234567898654")
json.UpdateString("description", "Test transaction")
json.UpdateString("buyer.email", "jan.kowalski@melements.pl")

Dim myApiAccessKey As String = "c12c386b-650b-43db-9430-d84fc05d9433"
Dim mySigCalcKey As String = "b758f20d-ba92-44fa-acca-f57e99787b9d"

'  Calculate the Signature header.
Dim crypt As ChilkatCrypt2
crypt.Initialize("crypt")
crypt.MacAlgorithm = "hmac"
crypt.EncodingMode = "base64"
crypt.SetMacKeyString(mySigCalcKey)
crypt.HashAlgorithm = "SHA-256"
Dim messageBody As String = json.Emit
Dim signature As String = crypt.MacStringENC(messageBody)

http.SetRequestHeader("Idempotency-Key", crypt.GenerateUuid)
http.SetRequestHeader("Api-Key", myApiAccessKey)
http.SetRequestHeader("Signature", signature)
http.SetRequestHeader("Content-Type", "application/json")
http.Accept = "application/json"

Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpJson("POST", "https://api.sandbox.paynow.pl/v1/payments", json, "application/json", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Log("Response body:")
Log(resp.BodyStr)

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

Dim jsonResp As ChilkatJsonObject
jsonResp.Initialize
jsonResp.Load(resp.BodyStr)
Dim redirectUrl As String = json.StringOf("redirectUrl")
Dim paymentId As String = json.StringOf("paymentId")
Dim status As String = json.StringOf("status")