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(PHP Extension) GeoOp Exchange Refresh Token for New Access Token

Demonstrates how to use the /oauth2/token endpoint to exchange it for a new access token once the current access token has expired.

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat PHP Downloads

PHP Extension for Windows, Linux, MAC OS X,
Alpine Linux, Solaris, OpenBSD, FreeBSD,
and Linux armhf/aarch64

<?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.

// This example also assumes that OAuth2 access and refresh tokens were previously fetched.
// and saved in a JSON file.  

// First get our previously obtained refresh token.
// { .... "refresh_token":"e6dqdG....mzjpT04w==", .... }
$jsonToken = new CkJsonObject();
$success = $jsonToken->LoadFile('qa_data/tokens/geoop.json');

$rest = new CkRest();

// Connect to GeoOp...
$bAutoReconnect = true;
$success = $rest->Connect('login.geoop.com',443,true,$bAutoReconnect);
if ($success != true) {
    print $rest->lastErrorText() . "\n";
    exit;
}

// Set the X-Version header.
$rest->AddHeader('X-Version','1.0');

// Provide the required form params to get the new access token
print 'refresh_token = ' . $jsonToken->stringOf('refresh_token') . "\n";
$rest->AddQueryParam('refresh_token',$jsonToken->stringOf('refresh_token'));
$rest->AddQueryParam('grant_type','refresh_token');
$rest->AddQueryParam('client_id','GEOOP-CLIENT-ID');
$rest->AddQueryParam('client_secret','GEOOP-CLIENT-SECRET');

$responseBody = $rest->fullRequestFormUrlEncoded('POST','/oauth2/token');
if ($rest->get_LastMethodSuccess() != true) {
    print $rest->lastErrorText() . "\n";
    exit;
}

// If the response status code did not indicate success, then see what happened..
if ($rest->get_ResponseStatusCode() != 200) {
    print 'Request Header: ' . "\n";
    print $rest->lastRequestHeader() . "\n";
    print '----' . "\n";
    print 'Response StatusCode = ' . $rest->get_ResponseStatusCode() . "\n";
    print 'Response StatusLine: ' . $rest->responseStatusText() . "\n";
    print 'Response Header:' . "\n";
    print $rest->responseHeader() . "\n";
    print $responseBody . "\n";
    exit;
}

$json = new CkJsonObject();
$json->put_EmitCompact(false);
$json->Load($responseBody);

// Show the full JSON response.  It should contain the new access token...
print $json->emit() . "\n";

?>

 

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