Visual FoxPro

Okta: Refresh Access Token with the Auth Code Flow

See more Okta OAuth/OIDC Examples

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

LOCAL lnSuccess
LOCAL loJsonToken
LOCAL loOauth2
LOCAL loSbJson

lnSuccess = 0

* 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).

loJsonToken = CreateObject('Chilkat.JsonObject')
lnSuccess = loJsonToken.LoadFile("qa_data/tokens/okta.json")
IF (lnSuccess <> 1) THEN
    ? "Failed to load myob.json"
    RELEASE loJsonToken
    CANCEL
ENDIF

loOauth2 = CreateObject('Chilkat.OAuth2')

loOauth2.TokenEndpoint = "https://{yourOktaDomain}/oauth2/default/v1/token"

* Replace these with actual values.
loOauth2.ClientId = "OKTA_CLIENT_ID"
loOauth2.ClientSecret = "OKTA_CLIENT_SECRET"

* Get the "refresh_token"
loOauth2.RefreshToken = loJsonToken.StringOf("refresh_token")

* Send the HTTP POST to refresh the access token..
loOauth2.VerboseLogging = 1
lnSuccess = loOauth2.RefreshAccessToken()
IF (lnSuccess <> 1) THEN
    ? loOauth2.LastErrorText
    RELEASE loJsonToken
    RELEASE loOauth2
    CANCEL
ENDIF

* Load the access token response into the json object 
loJsonToken.Load(loOauth2.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.
loSbJson = CreateObject('Chilkat.StringBuilder')
loJsonToken.EmitCompact = 0
loJsonToken.EmitSb(loSbJson)
loSbJson.WriteFile("qa_data/tokens/okta.json","utf-8",0)

? "OAuth2 authorization granted!"
? "New Access Token = " + loOauth2.AccessToken

RELEASE loJsonToken
RELEASE loOauth2
RELEASE loSbJson