(PowerBuilder) Isabel Connect Create Access Token given Valid Refresh Token

See more Ibanity Examples

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

For more information, see https://documentation.ibanity.com/isabel-connect/api#create-access-token

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Http
oleobject loo_Cert
integer li_Success
oleobject loo_Req
oleobject loo_JsonToken
oleobject loo_Crypt
string ls_IdempotencyKey
oleobject loo_Resp
oleobject loo_SbResponseBody
oleobject loo_JResp
integer li_RespStatusCode
string ls_Token_type
string ls_Scope
integer li_Expires_in
string ls_Access_token

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

loo_Http = create oleobject
// Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// 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.)
loo_Cert = create oleobject
// Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0
li_rc = loo_Cert.ConnectToNewObject("Chilkat.Cert")

li_Success = loo_Cert.LoadPfxFile("qa_data/pfx/my_ibanity_certificate.pfx","my_pfx_password")
if li_Success = 0 then
    Write-Debug loo_Cert.LastErrorText
    destroy loo_Http
    destroy loo_Cert
    return
end if

li_Success = loo_Http.SetSslClientCert(loo_Cert)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Cert
    return
end if

loo_Req = create oleobject
// Use "Chilkat_9_5_0.HttpRequest" for versions of Chilkat < 10.0.0
li_rc = loo_Req.ConnectToNewObject("Chilkat.HttpRequest")

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

// Load the previously obtained refresh token.
loo_JsonToken = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JsonToken.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_JsonToken.LoadFile("qa_data/tokens/isabel_refresh_token.json")
if li_Success = 0 then
    Write-Debug "No existing access token."
    destroy loo_Http
    destroy loo_Cert
    destroy loo_Req
    destroy loo_JsonToken
    return
end if

loo_Req.AddParam("refresh_token",loo_JsonToken.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.
loo_Req.AddParam("client_id","valid_client_id")
loo_Req.AddParam("client_secret","valid_client_secret")

loo_Req.AddHeader("Accept","application/vnd.api+json")

loo_Crypt = create oleobject
// Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
li_rc = loo_Crypt.ConnectToNewObject("Chilkat.Crypt2")

ls_IdempotencyKey = loo_Crypt.GenerateUuid()
Write-Debug "Ibanity-Idempotency-Key: " + ls_IdempotencyKey
loo_Req.AddHeader("Ibanity-Idempotency-Key",ls_IdempotencyKey)

loo_Resp = loo_Http.PostUrlEncoded("https://api.ibanity.com/isabel-connect/oauth2/token",loo_Req)
if loo_Http.LastMethodSuccess = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Cert
    destroy loo_Req
    destroy loo_JsonToken
    destroy loo_Crypt
    return
end if

loo_SbResponseBody = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat.StringBuilder")

loo_Resp.GetBodySb(loo_SbResponseBody)
loo_JResp = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JResp.ConnectToNewObject("Chilkat.JsonObject")

loo_JResp.LoadSb(loo_SbResponseBody)
loo_JResp.EmitCompact = 0

Write-Debug "Response Body:"
Write-Debug loo_JResp.Emit()

li_RespStatusCode = loo_Resp.StatusCode
Write-Debug "Response Status Code = " + string(li_RespStatusCode)
if li_RespStatusCode >= 400 then
    Write-Debug "Response Header:"
    Write-Debug loo_Resp.Header
    Write-Debug "Failed."
    destroy loo_Resp
    destroy loo_Http
    destroy loo_Cert
    destroy loo_Req
    destroy loo_JsonToken
    destroy loo_Crypt
    destroy loo_SbResponseBody
    destroy loo_JResp
    return
end if

destroy loo_Resp

// 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

ls_Token_type = loo_JResp.StringOf("token_type")
ls_Scope = loo_JResp.StringOf("scope")
li_Expires_in = loo_JResp.IntOf("expires_in")
ls_Access_token = loo_JResp.StringOf("access_token")

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


destroy loo_Http
destroy loo_Cert
destroy loo_Req
destroy loo_JsonToken
destroy loo_Crypt
destroy loo_SbResponseBody
destroy loo_JResp