(PowerBuilder) Okta: Refresh Access Token with the Auth Code Flow

Demonstrates how to refresh a token that was obtained using the authorization code flow.

For more information, see https://developer.okta.com/docs/guides/implement-auth-code-pkce/use-flow/

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

integer li_rc
oleobject loo_JsonToken
integer li_Success
oleobject loo_Oauth2
oleobject loo_SbJson

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

// See Get Okta Access Token using Authorization Code Flow with PKCE 
// for sample code showing how to obtain an Okta access token using the authorization code flow for native apps (with PKCE).

loo_JsonToken = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JsonToken.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_JsonToken
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_JsonToken.LoadFile("qa_data/tokens/okta.json")
if li_Success <> 1 then
    Write-Debug "Failed to load myob.json"
    destroy loo_JsonToken
    return
end if

loo_Oauth2 = create oleobject
// Use "Chilkat_9_5_0.OAuth2" for versions of Chilkat < 10.0.0
li_rc = loo_Oauth2.ConnectToNewObject("Chilkat.OAuth2")

loo_Oauth2.TokenEndpoint = "https://{yourOktaDomain}/oauth2/default/v1/token"

// Replace these with actual values.
loo_Oauth2.ClientId = "OKTA_CLIENT_ID"
loo_Oauth2.ClientSecret = "OKTA_CLIENT_SECRET"

// Get the "refresh_token"
loo_Oauth2.RefreshToken = loo_JsonToken.StringOf("refresh_token")

// Send the HTTP POST to refresh the access token..
loo_Oauth2.VerboseLogging = 1
li_Success = loo_Oauth2.RefreshAccessToken()
if li_Success <> 1 then
    Write-Debug loo_Oauth2.LastErrorText
    destroy loo_JsonToken
    destroy loo_Oauth2
    return
end if

// Load the access token response into the json object 
loo_JsonToken.Load(loo_Oauth2.AccessTokenResponse)

// Save the new JSON access token response to a file.
// The access + refresh tokens contained in this JSON will be needed for the next refresh.
loo_SbJson = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbJson.ConnectToNewObject("Chilkat.StringBuilder")

loo_JsonToken.EmitCompact = 0
loo_JsonToken.EmitSb(loo_SbJson)
loo_SbJson.WriteFile("qa_data/tokens/okta.json","utf-8",0)

Write-Debug "OAuth2 authorization granted!"
Write-Debug "New Access Token = " + loo_Oauth2.AccessToken


destroy loo_JsonToken
destroy loo_Oauth2
destroy loo_SbJson