(PHP Extension) 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 PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

$http = new CkHttp();

// The following JSON is sent in the request body.

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

$json = new CkJsonObject();
$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 = new CkCert();
$success = $cert->LoadFromFile('qa_data/certs_and_keys/union_client_certificate.crt');
if ($success == false) {
    print $cert->lastErrorText() . "\n";
    exit;
}

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

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

// resp is a CkHttpResponse
$resp = $http->PostJson3('https://api-test.rsap.ca/oauth/token','application/json',$json);
if ($http->get_LastMethodSuccess() == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

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

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

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

?>