PHP

Refresh QuickBooks OAuth2 Access Token

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Demonstrates how to refresh a QuickBooks OAuth2 access token. Chilkat2 PHP

<?php

use Chilkat2\JsonObject;
use Chilkat2\OAuth2;
use Chilkat2\StringBuilder;

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

// See Get QuickBooks OAuth2 Access Token
// for sample code showing how to obtain a QuickBooks access token for desktop apps.

// This example assumes we previously obtained an OAuth2 access token for QuickBooks.

$jsonToken = new JsonObject();
try {
    $jsonToken->LoadFile('qa_data/tokens/qb-access-token.json');
} catch (\Chilkat2\Exception $e) {
    echo "Failed to load qb-access-token.json\n";
    exit;
}

// The access token JSON looks something like this:

// {
//   "expires_in": 3600,
//   "x_refresh_token_expires_in": 8726400,
//   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
//   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
//   "token_type": "bearer"
// }

$oauth2 = new OAuth2();

$oauth2->TokenEndpoint = 'https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer';

// Replace these with actual values.
$oauth2->ClientId = 'QUICKBOOKS-CLIENT-ID';
$oauth2->ClientSecret = 'QUICKBOOKS-CLIENT-SECRET';

// Get the "refresh_token"
$oauth2->RefreshToken = $jsonToken->StringOf('refresh_token');

// Send the HTTP POST to refresh the access token..
try {
    $oauth2->RefreshAccessToken();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// The response contains a new access token, but we must keep
// our existing refresh token for when we need to refresh again in the future.
$jsonToken->UpdateString('access_token', $oauth2->AccessToken);

// Save the new JSON access token response to a file.
// The access + refresh tokens contained in this JSON will be needed for the next refresh.
$sbJson = new StringBuilder();
$jsonToken->EmitCompact = false;

$jsonToken->EmitSb($sbJson);
$sbJson->WriteFile('qa_data/tokens/qb-access-token.json', 'utf-8', false);

echo "OAuth2 token refreshed!\n";
echo 'New Access Token = ', $oauth2->AccessToken, "\n";