Basic Express Back

• Express Server Health Check
• App Sample Health Check
• Test XHR CORS
• Test DB Connection
• Test outbound unblocked
• Test return stream
• Handled Exception - /api/error - caught by middleware
• 404 Not Found Error
• Handled Promise Rejection - /api/error-handled-rejection - caught by middleware
• Unhandled Promise Rejection - /api/error-unhandled-rejection - caught by on.process - will crash the server

NOTE: To test uncaught exception, need to uncomment "// openMissingFile()" in router/api.js

Output will be shown here