Add GitHub App credentials test with exact values from env-details

api/test/github-app-credentials.js

@@ -0,0 +1,83 @@
+/**
+ * Test GitHub App credentials directly
+ * This endpoint tests if the GitHub App credentials are valid
+ */
+
+import { createAppAuth } from '@octokit/auth-app';
+
+export default async function handler(req, res) {
+    if (req.method !== 'GET') {
+        return res.status(405).json({ error: 'Method not allowed' });
+    }
+
+    try {
+        console.log('🧪 Testing GitHub App credentials directly...');
+
+        // Check if GitHub App is configured
+        if (!process.env.GITHUB_APP_ID || !process.env.GITHUB_APP_PRIVATE_KEY) {
+            return res.status(500).json({
+                error: 'GitHub App not configured',
+                message: 'GITHUB_APP_ID or GITHUB_APP_PRIVATE_KEY is missing'
+            });
+        }
+
+        const appId = process.env.GITHUB_APP_ID;
+        let privateKey = process.env.GITHUB_APP_PRIVATE_KEY;
+
+        console.log('🔍 Environment variables analysis:');
+        console.log('  - App ID:', appId);
+        console.log('  - App ID type:', typeof appId);
+        console.log('  - App ID is numeric:', /^\d+$/.test(appId));
+        console.log('  - Private key length:', privateKey.length);
+        console.log('  - Private key contains \\n:', privateKey.includes('\\n'));
+        console.log('  - Private key contains actual newlines:', privateKey.includes('\n'));
+        console.log('  - Private key starts with:', privateKey.substring(0, 50));
+        console.log('  - Private key ends with:', privateKey.substring(privateKey.length - 50));
+
+        // Process private key if it contains escaped newlines
+        if (privateKey.includes('\\n')) {
+            console.log('🔧 Processing private key with escaped newlines');
+            privateKey = privateKey.replace(/\\n/g, '\n');
+            console.log('  - After processing, contains actual newlines:', privateKey.includes('\n'));
+        }
+
+        // Test 1: Create app auth
+        console.log('🧪 Test 1: Creating app auth...');
+        const appAuth = createAppAuth({
+            appId: appId,
+            privateKey: privateKey,
+        });
+        console.log('✅ App auth created successfully');
+
+        // Test 2: Get app token
+        console.log('🧪 Test 2: Getting app token...');
+        const appToken = await appAuth({ type: 'app' });
+        console.log('✅ App token obtained successfully');
+        console.log('  - Token length:', appToken.token ? appToken.token.length : 'null');
+        console.log('  - Token type:', appToken.type);
+
+        return res.status(200).json({
+            success: true,
+            message: 'GitHub App credentials test successful',
+            details: {
+                appId: appId,
+                appIdType: typeof appId,
+                appIdIsNumeric: /^\d+$/.test(appId),
+                privateKeyLength: privateKey.length,
+                privateKeyHasEscapedNewlines: process.env.GITHUB_APP_PRIVATE_KEY.includes('\\n'),
+                privateKeyHasActualNewlines: privateKey.includes('\n'),
+                tokenLength: appToken.token ? appToken.token.length : null,
+                tokenType: appToken.type
+            }
+        });
+
+    } catch (error) {
+        console.error('❌ GitHub App credentials test failed:', error.message);
+        console.error('Error details:', error);
+        return res.status(500).json({
+            error: 'GitHub App credentials test failed',
+            message: error.message,
+            details: process.env.NODE_ENV === 'development' ? error.stack : undefined
+        });
+    }
+}