import { NextApiRequest, NextApiResponse } from 'next';
// Debug endpoint - DO NOT USE IN PRODUCTION
export default async function handler(req: NextApiRequest, res: NextApiResponse) {
if (process.env.NODE_ENV === 'production') {
return res.status(404).json({ error: 'Not found' });
}
if (req.method !== 'GET') {
return res.status(405).json({ error: 'Method not allowed' });
}
try {
// Check environment variables
const envCheck = {
META_APP_ID: !!process.env.META_APP_ID,
META_APP_SECRET: !!process.env.META_APP_SECRET,
META_REDIRECT_URI: process.env.META_REDIRECT_URI,
JWT_SECRET: !!process.env.JWT_SECRET,
REDIS_URL: !!process.env.REDIS_URL,
KV_REST_API_URL: !!process.env.KV_REST_API_URL,
};
// Generate test auth URL
let testAuthUrl = null;
if (process.env.META_APP_ID && process.env.META_REDIRECT_URI) {
const params = new URLSearchParams({
client_id: process.env.META_APP_ID,
redirect_uri: process.env.META_REDIRECT_URI,
scope: 'ads_management,ads_read,business_management',
response_type: 'code',
state: 'debug_test_state_123',
});
testAuthUrl = `https://www.facebook.com/v23.0/dialog/oauth?${params.toString()}`;
}
// Test storage connection
let storageTest = 'not_tested';
try {
if (process.env.REDIS_URL) {
storageTest = 'redis_configured';
} else if (process.env.KV_REST_API_URL) {
storageTest = 'vercel_kv_configured';
} else {
storageTest = 'no_storage_configured';
}
} catch (error) {
storageTest = `storage_error: ${error instanceof Error ? error.message : 'unknown'}`;
}
res.status(200).json({
success: true,
message: 'Debug information',
host: req.headers.host,
environment: process.env.NODE_ENV,
environment_variables: envCheck,
storage_status: storageTest,
test_auth_url: testAuthUrl,
instructions: {
step1: 'Check that all required environment variables are set (should be true)',
step2: 'Use the test_auth_url to test the OAuth flow',
step3: 'After Meta authentication, you should be redirected to the callback',
step4: 'If you get the callback error, check Meta app configuration',
common_issues: [
'META_REDIRECT_URI in Meta app must exactly match the one shown above',
'Meta app must be in Live mode or you must be a test user',
'Don\'t access /api/auth/callback directly - it\'s only for Meta redirects'
]
}
});
} catch (error) {
console.error('Debug endpoint error:', error);
res.status(500).json({
success: false,
error: 'Debug endpoint failed',
message: error instanceof Error ? error.message : 'Unknown error'
});
}
}
