(Perl) RSAP Union API - Get OAuth2 Access Token

Demonstrates how to get an OAuth2 access token for the RSAP Union API. Note: This uses the client credentials flow, which does NOT require an interactive engagement using a browser.

For more information, see https://app.swaggerhub.com/apis-docs/pderas/RSAP/2.0.1#/Authentication/getOauthToken

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();

# The following JSON is sent in the request body.

# {
#   "grant_type": "client_credentials",
#   "client_id": 1234,
#   "client_secret": "23456abcde"
# }

$json = chilkat::CkJsonObject->new();
$json->UpdateString("grant_type","client_credentials");
$json->UpdateInt("client_id",1234);
$json->UpdateString("client_secret","23456abcde");

$http->SetRequestHeader("Content-type","application/json");

# Add the client certificate TLS authentication.
$cert = chilkat::CkCert->new();
$success = $cert->LoadFromFile("qa_data/certs_and_keys/union_client_certificate.crt");
if ($success == 0) {
    print $cert->lastErrorText() . "\r\n";
    exit;
}

$privKey = chilkat::CkPrivateKey->new();
$success = $privKey->LoadAnyFormatFile("qa_data/certs_and_keys/union_client_certificate.nopass.key","");
if ($success == 0) {
    print $privKey->lastErrorText() . "\r\n";
    exit;
}

# Associate the private key with the cert.
# This will fail if the private key is not actually the correct one that corresponds to the public key stored within the cert.
$success = $cert->SetPrivateKey($privKey);
if ($success == 0) {
    print $cert->lastErrorText() . "\r\n";
    exit;
}

# Tell HTTP to use the cert for client TLS certificate authentication.
$success = $http->SetSslClientCert($cert);
if ($success == 0) {
    print $http->lastErrorText() . "\r\n";
    exit;
}

# resp is a HttpResponse
$resp = $http->PostJson3("https://api-test.rsap.ca/oauth/token","application/json",$json);
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)

# {
#   "token_type": "Bearer",
#   "expires_in": 3600,
#   "access_token": "eyJ0eXAi...LnE"
# }

# This token expires in 1 hour.  Your application could re-use the same token for up to an hour,
# or it can simply get a new access token before each request (if you're not doing too many requests).
$success = $jResp->WriteFile("qa_data/tokens/rsapToken.json");