Shopify PHP Admin REST API调用报500错误排查求助

Step 1: Enable Detailed Error Reporting #

First, resolve the generic 500 error by enabling PHP error display and logging to get specific details. Add these lines at the top of your script:

error_reporting(E_ALL);
ini_set('display_errors', 1);
ini_set('log_errors', 1);
ini_set('error_log', '/path/to/your/error.log');

Step 2: Validate Session Storage Configuration #

You're using FileSessionStorage('/tmp/php_sessions'). Ensure:

• The /tmp/php_sessions directory exists. Create it if missing:

  mkdir /tmp/php_sessions
  chmod 775 /tmp/php_sessions
  chown www-data:www-data /tmp/php_sessions
  

• The web server user (e.g., www-data for Apache/Nginx) has write permissions to this directory.

Step 3: Fix Context Initialization Issues #

Double-check critical parameters in Context::initialize:

• Replace {API_KEY} and {API_SECRET} with your actual Shopify app credentials (not placeholders).
• hostName uses your store domain without http:// or https:// (your current value hnu-demo-store.myshopify.com is correct).
• isEmbeddedApp: true is only valid if your app is embedded in the Shopify Admin. Set to false for standalone apps.

Step 4: Correct Session Loading Parameters #

Your current $headers and $cookies are incomplete:

• Headers: Use the actual request headers instead of a hardcoded array (embedded apps rely on Shopify-specific headers like X-Shopify-Shop-Domain):

  $headers = getallheaders();
  

• Cookies: Pass the actual request cookies instead of an empty array (Shopify uses cookies to manage sessions):

  $cookies = $_COOKIE;
  

• isOnline: Set to true only for staff/customer online sessions. Use false for app-owned offline sessions.

Step 5: Wrap Session Loading in Try-Catch #

Catch SDK exceptions to get detailed error messages:

try {
    $session = Shopify\Utils::loadCurrentSession(
        getallheaders(),
        $_COOKIE,
        true
    );
    var_dump($session);
} catch (\Exception $e) {
    echo "Error: " . $e->getMessage();
    error_log($e->getTraceAsString());
}

Step 6: Verify OAuth Flow Completion #

loadCurrentSession requires an existing session, which is created after completing the Shopify OAuth authorization flow. Ensure your app has redirected the user to Shopify's authorization URL and exchanged the authorization code for an access token before attempting to load the session.

Step 7: Check SDK and API Version Compatibility #

Confirm your installed SDK version supports the 2023-04 API version. Run this command to check the SDK version:

composer show shopify/shopify-api

Update the SDK if outdated:

composer update shopify/shopify-api

内容的提问来源于stack exchange，提问作者Upendra Sharma