Visual FoxPro

Okta Client Credentials FLow

See more Okta OAuth/OIDC Examples

The Client Credentials flow is recommended for use in machine-to-machine authentication. Your application will need to securely store its Client ID and Secret and pass those to Okta in exchange for an access token. At a high-level, the flow only has two steps:

• Your application passes its client credentials to your Okta authorization server.
• If the credentials are accurate, Okta responds with an access token.

Note: This example uses "customScope". You'll replace it with whatever scope(s) you've defined for your app. Scopes are defined in your Authorization Server. See Okta Authorization Server / Scopes

Visual FoxPro

LOCAL lnSuccess
LOCAL loHttp
LOCAL loReq
LOCAL loResp
LOCAL loSbResponseBody
LOCAL loJResp
LOCAL lnRespStatusCode
LOCAL lcAccess_token
LOCAL lcToken_type
LOCAL lnExpires_in
LOCAL lcScope

lnSuccess = 0

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

loHttp = CreateObject('Chilkat.Http')

*  Implements the following CURL command:

*  curl --request POST \
*    --url https://{yourOktaDomain}/oauth2/default/v1/token \
*    --header 'accept: application/json' \
*    --user "client_id:client_secret" \
*    --header 'cache-control: no-cache' \
*    --header 'content-type: application/x-www-form-urlencoded' \
*    --data 'grant_type=client_credentials&scope=customScope'

loHttp.Login = "client_id"
loHttp.Password = "client_secret"

loReq = CreateObject('Chilkat.HttpRequest')
loReq.HttpVerb = "POST"
loReq.Path = "/oauth2/default/v1/token"
loReq.ContentType = "application/x-www-form-urlencoded"
loReq.AddParam("grant_type","client_credentials")
loReq.AddParam("scope","customScope")

loReq.AddHeader("accept","application/json")

loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpReq("https://{yourOktaDomain}/oauth2/default/v1/token",loReq,loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loReq
    RELEASE loResp
    CANCEL
ENDIF

loSbResponseBody = CreateObject('Chilkat.StringBuilder')
loResp.GetBodySb(loSbResponseBody)
loJResp = CreateObject('Chilkat.JsonObject')
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = 0

? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + STR(lnRespStatusCode)
IF (lnRespStatusCode >= 400) THEN
    ? "Response Header:"
    ? loResp.Header
    ? "Failed."
    RELEASE loHttp
    RELEASE loReq
    RELEASE loResp
    RELEASE loSbResponseBody
    RELEASE loJResp
    CANCEL
ENDIF

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

*  {
*    "access_token": "eyJraWQiO ... B2CnCLj7GRUW3mQ",
*    "token_type": "Bearer",
*    "expires_in": 3600,
*    "scope": "customScope"
*  }

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

lcAccess_token = loJResp.StringOf("access_token")
lcToken_type = loJResp.StringOf("token_type")
lnExpires_in = loJResp.IntOf("expires_in")
lcScope = loJResp.StringOf("scope")

RELEASE loHttp
RELEASE loReq
RELEASE loResp
RELEASE loSbResponseBody
RELEASE loJResp