System & Testing - IntentGPT API

Overview

The System & Testing endpoints provide tools for monitoring API health, testing authentication, and ensuring proper system functionality. These endpoints are essential for monitoring and debugging integrations.

Health Check

GET /health

Comprehensive system health check that verifies API server status, database connectivity, and authentication services. This endpoint does not require authentication.

Example Request

curl -X GET "https://api.intentgpt.ai/health"

Response Statuses

200 OK: All systems operational
207 Multi-Status: Some systems degraded but API functional
503 Service Unavailable: Critical systems down

Healthy Response (200)

{
  "status": "OK",
  "version": "1.0.0",
  "timestamp": "2024-01-15T10:30:00.000Z",
  "response_time_ms": 45,
  "checks": {
    "api_server": {
      "status": "OK"
    },
    "database": {
      "status": "OK",
      "connection": "OK",
      "tables": {
        "api_management.api_keys": {
          "status": "OK",
          "exists": true,
          "num_rows": 1250,
          "created": "2023-01-01T00:00:00.000Z",
          "modified": "2024-01-15T09:45:00.000Z"
        },
        "api_management.user_credits": {
          "status": "OK", 
          "exists": true,
          "num_rows": 1250
        },
        "api_management.usage_logs": {
          "status": "OK",
          "exists": true,
          "num_rows": 125000
        }
      }
    },
    "authentication": {
      "status": "OK"
    }
  }
}

Degraded Response (207)

{
  "status": "DEGRADED",
  "version": "1.0.0", 
  "timestamp": "2024-01-15T10:30:00.000Z",
  "response_time_ms": 1200,
  "message": "Missing required tables: api_management.usage_logs",
  "checks": {
    "api_server": {
      "status": "OK"
    },
    "database": {
      "status": "DEGRADED",
      "connection": "OK",
      "missing_tables": ["api_management.usage_logs"],
      "tables": {
        "api_management.api_keys": {
          "status": "OK",
          "exists": true
        },
        "api_management.user_credits": {
          "status": "OK",
          "exists": true
        },
        "api_management.usage_logs": {
          "status": "OK",
          "exists": false,
          "error": "Table api_management.usage_logs not found"
        }
      }
    },
    "authentication": {
      "status": "OK"
    }
  }
}

Error Response (503)

{
  "status": "ERROR",
  "version": "1.0.0",
  "timestamp": "2024-01-15T10:30:00.000Z",
  "error": "Health check failed",
  "details": "Database connection timeout",
  "checks": {
    "api_server": {
      "status": "OK"
    },
    "database": {
      "status": "ERROR", 
      "error": "Connection timeout after 30 seconds"
    },
    "authentication": {
      "status": "UNKNOWN"
    }
  }
}

Authentication Testing

GET /test-auth

Test endpoint to verify that your authentication is working correctly. Supports both API key and JWT token authentication methods.

Authentication Methods

The endpoint will detect and test whichever authentication method you provide:

API Key: Use X-API-Key header
JWT Token: Use Authorization: Bearer header
Legacy API Key: Use Authorization: Bearer with legacy key

Example: Test API Key

curl -X GET "https://api.intentgpt.ai/test-auth" \
-H "X-API-Key: your_api_key"

Example: Test JWT Token

curl -X GET "https://api.intentgpt.ai/test-auth" \
-H "Authorization: Bearer your_jwt_token"

Success Response (200)

API Key Authentication:

{
  "message": "Authenticated via API Key",
  "auth_method": "api_key",
  "user_id": "user_abc123def456"
}

JWT Authentication:

{
  "message": "Authenticated via Clerk",
  "auth_method": "clerk", 
  "user_id": "user_clerk_xyz789"
}

Legacy API Key:

{
  "message": "Authenticated via API Key",
  "auth_method": "legacy_api_key",
  "user_id": "legacy_key_abcdef12..."
}

Error Response (401)

{
  "error": "Authentication required",
  "details": "Use either X-API-Key header or Bearer token"
}

CORS Testing

GET /cors-test

Test Cross-Origin Resource Sharing (CORS) configuration. This endpoint helps verify that your web application can properly communicate with the API from browser environments.

Example Request

curl -X GET "https://api.intentgpt.ai/cors-test" \
-H "Origin: https://yourdomain.com"

Response

{
  "message": "CORS test successful",
  "timestamp": "2024-01-15T10:30:00.000Z"
}

CORS Headers

The API supports requests from these origins:

https://intentgpt.ai
https://www.intentgpt.ai
http://localhost:8080
http://localhost:3000
Development workstation URLs

System Monitoring

Health Check Integration

The health check endpoint is designed for integration with monitoring systems:

Kubernetes Liveness Probe

livenessProbe:
  httpGet:
    path: /health
    port: 8080
  initialDelaySeconds: 30
  periodSeconds: 10
  failureThreshold: 3

Docker Health Check

HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
  CMD curl -f http://localhost/health || exit 1

Monitoring Script

import requests
import time

def monitor_api_health():
    """Monitor API health and alert on issues"""
    
    try:
        response = requests.get('https://api.intentgpt.ai/health', timeout=30)
        
        if response.status_code == 200:
            data = response.json()
            print(f"✅ API healthy - Response time: {data['response_time_ms']}ms")
            
        elif response.status_code == 207:
            data = response.json()
            print(f"⚠️  API degraded - {data.get('message', 'Some systems degraded')}")
            
        elif response.status_code >= 500:
            print("🚨 API down - Critical error")
            
    except requests.RequestException as e:
        print(f"🚨 API unreachable - {str(e)}")

# Run monitoring
while True:
    monitor_api_health()
    time.sleep(60)  # Check every minute

Error Diagnosis

Common Issues

Authentication Failures

Symptom: 401 errors on /test-auth Solutions:

Verify API key format and validity
Check header format (X-API-Key vs Authorization: Bearer)
Ensure key is active using /toggle_key endpoint

Health Check Degraded

Symptom: 207 status on /health Solutions:

Check database connectivity
Verify required tables exist
Review system logs for errors

CORS Issues

Symptom: Browser requests blocked Solutions:

Verify origin is in allowed list
Test with /cors-test endpoint
Check preflight OPTIONS requests

Testing Checklist

Before going to production, test these scenarios:

Health check returns 200 OK
API key authentication works via X-API-Key header
JWT token authentication works via Authorization: Bearer
CORS requests succeed from your domain
Error responses are properly formatted
Rate limiting is functioning (if applicable)

Integration Examples

Frontend Health Check

// Check API health before making requests
const checkApiHealth = async () => {
  try {
    const response = await fetch('https://api.intentgpt.ai/health');
    const health = await response.json();
    
    if (response.status === 200) {
      console.log('API is healthy');
      return true;
    } else if (response.status === 207) {
      console.warn('API is degraded:', health.message);
      return true; // Still functional
    } else {
      console.error('API is down');
      return false;
    }
  } catch (error) {
    console.error('Cannot reach API:', error);
    return false;
  }
};

// Test authentication before critical operations
const testAuth = async (apiKey) => {
  try {
    const response = await fetch('https://api.intentgpt.ai/test-auth', {
      headers: { 'X-API-Key': apiKey }
    });
    
    if (response.status === 200) {
      const auth = await response.json();
      console.log('Authentication successful:', auth.auth_method);
      return true;
    } else {
      console.error('Authentication failed');
      return false;
    }
  } catch (error) {
    console.error('Auth test failed:', error);
    return false;
  }
};

Backend Monitoring

import requests
import logging

class APIMonitor:
    def __init__(self, api_key):
        self.api_key = api_key
        self.base_url = "https://api.intentgpt.ai"
        
    def comprehensive_check(self):
        """Run all system checks"""
        results = {
            'health': self.check_health(),
            'auth': self.check_auth(),
            'cors': self.check_cors()
        }
        
        # Log results
        for check, result in results.items():
            if result['status'] == 'ok':
                logging.info(f"✅ {check.upper()} check passed")
            else:
                logging.error(f"❌ {check.upper()} check failed: {result['error']}")
                
        return results
        
    def check_health(self):
        try:
            response = requests.get(f"{self.base_url}/health", timeout=10)
            if response.status_code in [200, 207]:
                return {'status': 'ok', 'data': response.json()}
            else:
                return {'status': 'error', 'error': f"HTTP {response.status_code}"}
        except Exception as e:
            return {'status': 'error', 'error': str(e)}
            
    def check_auth(self):
        try:
            response = requests.get(
                f"{self.base_url}/test-auth",
                headers={'X-API-Key': self.api_key},
                timeout=10
            )
            if response.status_code == 200:
                return {'status': 'ok', 'data': response.json()}
            else:
                return {'status': 'error', 'error': f"HTTP {response.status_code}"}
        except Exception as e:
            return {'status': 'error', 'error': str(e)}
            
    def check_cors(self):
        try:
            response = requests.get(
                f"{self.base_url}/cors-test",
                headers={'Origin': 'https://yourdomain.com'},
                timeout=10
            )
            if response.status_code == 200:
                return {'status': 'ok', 'data': response.json()}
            else:
                return {'status': 'error', 'error': f"HTTP {response.status_code}"}
        except Exception as e:
            return {'status': 'error', 'error': str(e)}

# Usage
monitor = APIMonitor("your_api_key")
results = monitor.comprehensive_check()

Best Practices

Monitoring

Regular Health Checks: Monitor /health every 1-5 minutes
Alert Thresholds: Alert on 207 (degraded) and 503 (down) responses
Response Time Monitoring: Track response_time_ms for performance trends

Testing

Pre-deployment Testing: Always test auth before deploying
CORS Validation: Test from actual client domains
Error Handling: Verify your app handles API errors gracefully

Debugging

Use Test Endpoints: Leverage /test-auth for debugging auth issues
Check Health Details: Review specific component failures in health checks
Monitor Logs: Enable logging for all API interactions during debugging

API Documentation

Core Endpoints

​Overview

​Health Check

​GET /health

​Example Request

​Response Statuses

​Healthy Response (200)

​Degraded Response (207)

​Error Response (503)

​Authentication Testing

​GET /test-auth

​Authentication Methods

​Example: Test API Key

​Example: Test JWT Token

​Success Response (200)

​Error Response (401)

​CORS Testing

​GET /cors-test

​Example Request

​Response

​CORS Headers

​System Monitoring

​Health Check Integration

​Kubernetes Liveness Probe

​Docker Health Check

​Monitoring Script

​Error Diagnosis

​Common Issues

​Authentication Failures

​Health Check Degraded

​CORS Issues

​Testing Checklist

​Integration Examples

​Frontend Health Check

​Backend Monitoring

​Best Practices

​Monitoring

​Testing

​Debugging

Overview

Health Check

GET /health

Example Request

Response Statuses

Healthy Response (200)

Degraded Response (207)

Error Response (503)

Authentication Testing

GET /test-auth

Authentication Methods

Example: Test API Key

Example: Test JWT Token

Success Response (200)

Error Response (401)

CORS Testing

GET /cors-test

Example Request

Response

CORS Headers

System Monitoring

Health Check Integration

Kubernetes Liveness Probe

Docker Health Check

Monitoring Script

Error Diagnosis

Common Issues

Authentication Failures

Health Check Degraded

CORS Issues

Testing Checklist

Integration Examples

Frontend Health Check

Backend Monitoring

Best Practices

Monitoring

Testing

Debugging