(Perl) Okta Client Credentials FLow

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

For more information, see https://developer.okta.com/docs/guides/implement-client-creds/use-flow/

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

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

$http = chilkat::CkHttp->new();

# 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'

$http->put_Login("client_id");
$http->put_Password("client_secret");

$req = chilkat::CkHttpRequest->new();
$req->put_HttpVerb("POST");
$req->put_Path("/oauth2/default/v1/token");
$req->put_ContentType("application/x-www-form-urlencoded");
$req->AddParam("grant_type","client_credentials");
$req->AddParam("scope","customScope");

$req->AddHeader("accept","application/json");

# resp is a HttpResponse
$resp = $http->PostUrlEncoded("https://{yourOktaDomain}/oauth2/default/v1/token",$req);
if ($http->get_LastMethodSuccess() == 0) {
    print $http->lastErrorText() . "\r\n";
    exit;
}

$sbResponseBody = chilkat::CkStringBuilder->new();
$resp->GetBodySb($sbResponseBody);
$jResp = chilkat::CkJsonObject->new();
$jResp->LoadSb($sbResponseBody);
$jResp->put_EmitCompact(0);

print "Response Body:" . "\r\n";
print $jResp->emit() . "\r\n";

$respStatusCode = $resp->get_StatusCode();
print "Response Status Code = " . $respStatusCode . "\r\n";
if ($respStatusCode >= 400) {
    print "Response Header:" . "\r\n";
    print $resp->header() . "\r\n";
    print "Failed." . "\r\n";

    exit;
}

# 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

$access_token = $jResp->stringOf("access_token");
$token_type = $jResp->stringOf("token_type");
$expires_in = $jResp->IntOf("expires_in");
$scope = $jResp->stringOf("scope");