Getting Started with Ngrok in Node-RED

Ngrok is a cross-platform application that exposes local servers to a unique ngrok.io subdomain over secure tunnels, allowing developers to receive notifications from APIs like Nexmo without exposing their server to the internet. This can be achieved by installing the Ngrok node in Node-RED and configuring it to create an HTTP or HTTPS endpoint, making it useful for testing integrations with third-party services or APIs that require valid SSL/TLS domains. The ngrok tunnel is limited to 8 hours and requires a unique subdomain each time, but can be extended by creating a free account on the Ngrok dashboard. The tool also comes with features such as a dashboard to inspect tunnel status, replay requests, and valuable insight into API interactions, making it a powerful solution for quick demos and simple tunnelling needs.