API gateway gallery: Drop-in API policy management examples

ngrok's API gateway provides a flexible and programmable way for developers to manage their APIs' security, reliability, and performance. Unlike traditional deployed or cloud-based API gateways, ngrok's developer-defined option is feature-rich, works everywhere, and allows self-serving production without operational headaches or costs. The API gateway can be configured using two methods: at the Edge level with a web-based editor or directly with the ngrok agent as an ngrok endpoint. This flexibility enables developers to apply API policies in real-time, making it possible to test new drop-in rate limiting policies quickly and easily. Various examples of API policy management are provided, including blocking traffic from specific countries, maintaining and deprecating API versions, manipulating headers on inbound requests, adding compression to responses, enforcing the TLS version of requests, logging unsuccessful events to observability platforms, and limiting request sizes.