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Isabel Connect Create Access Token given Valid Refresh Token

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Create (refresh) an access token given a valid refresh token.

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Local $bSuccess = False

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

$oHttp = ObjCreate("Chilkat.Http")

; Implements the following CURL command:

; curl -X POST https://api.ibanity.com/isabel-connect/oauth2/token \
; --cert certificate.pem:qwertyuiop1 \
; --key private_key.pem  \
; -H "Content-Type: application/x-www-form-urlencoded" \
; -H "Accept: application/vnd.api+json" \
; -H "Ibanity-Idempotency-Key: 94c5586e-e15e-4bae-a1fe-fdbefe1f11d3"  \
; -d grant_type=refresh_token \
; -d refresh_token=valid_refresh_token \
; -d client_id=valid_client_id \
; -d client_secret=valid_client_secret

; Ibanity provides the certificate + private key in PFX format.  This example will use the .pfx instead of the pair of PEM files.
; (It is also possible to implement using Chilkat with the PEM files, but PFX is easier.)
$oCert = ObjCreate("Chilkat.Cert")
$bSuccess = $oCert.LoadPfxFile("qa_data/pfx/my_ibanity_certificate.pfx","my_pfx_password")
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oHttp.SetSslClientCert($oCert)
If ($bSuccess = False) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

$oReq = ObjCreate("Chilkat.HttpRequest")
$oReq.HttpVerb = "POST"
$oReq.Path = "/isabel-connect/oauth2/token"
$oReq.ContentType = "application/x-www-form-urlencoded"
$oReq.AddParam "grant_type","refresh_token"

; Load the previously obtained refresh token.
$oJsonToken = ObjCreate("Chilkat.JsonObject")
$bSuccess = $oJsonToken.LoadFile("qa_data/tokens/isabel_refresh_token.json")
If ($bSuccess = False) Then
    ConsoleWrite("No existing access token." & @CRLF)
    Exit
EndIf

$oReq.AddParam "refresh_token",$oJsonToken.StringOf("refresh_token")

; Note: For sandbox testing, we literally want to use the strings
; "valid_client_id", and "valid_client_secret".
; For the live app, you would replace these with actual values.
$oReq.AddParam "client_id","valid_client_id"
$oReq.AddParam "client_secret","valid_client_secret"

$oReq.AddHeader "Accept","application/vnd.api+json"

$oCrypt = ObjCreate("Chilkat.Crypt2")
Local $sIdempotencyKey = $oCrypt.GenerateUuid()
ConsoleWrite("Ibanity-Idempotency-Key: " & $sIdempotencyKey & @CRLF)
$oReq.AddHeader "Ibanity-Idempotency-Key",$sIdempotencyKey

$oResp = ObjCreate("Chilkat.HttpResponse")
$bSuccess = $oHttp.HttpReq("https://api.ibanity.com/isabel-connect/oauth2/token",$oReq,$oResp)
If ($bSuccess = False) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

$oSbResponseBody = ObjCreate("Chilkat.StringBuilder")
$oResp.GetBodySb($oSbResponseBody)
$oJResp = ObjCreate("Chilkat.JsonObject")
$oJResp.LoadSb($oSbResponseBody)
$oJResp.EmitCompact = False

ConsoleWrite("Response Body:" & @CRLF)
ConsoleWrite($oJResp.Emit() & @CRLF)

Local $iRespStatusCode = $oResp.StatusCode
ConsoleWrite("Response Status Code = " & $iRespStatusCode & @CRLF)
If ($iRespStatusCode >= 400) Then
    ConsoleWrite("Response Header:" & @CRLF)
    ConsoleWrite($oResp.Header & @CRLF)
    ConsoleWrite("Failed." & @CRLF)
    Exit
EndIf

; Sample JSON response:
; (Sample code for parsing the JSON response is shown below)

; Notice that we don't get a new refresh token.  The original refresh token is used each time we
; want to refresh.  However, we get a new access token.  This access token is to be used in Isabel API calls
; until we need to refresh again.
; {
;   "token_type": "Bearer",
;   "scope": "cloudconnect",
;   "expires_in": 1799,
;   "access_token": "access_token_1603365408"
; }

; Sample code for parsing the JSON response...
; Use the following online tool to generate parsing code from sample JSON:
; Generate Parsing Code from JSON

Local $sToken_type = $oJResp.StringOf("token_type")
Local $scope = $oJResp.StringOf("scope")
Local $iExpires_in = $oJResp.IntOf("expires_in")
Local $sAccess_token = $oJResp.StringOf("access_token")

; Save this to a file so we can load in other examples to include the access token in the HTTP request.
$bSuccess = $oJResp.WriteFile("qa_data/tokens/isabel_access_token.json")