How can I geoblock with an API gateway?

ngrok enables geoblocking through Common Expression Language (CEL) expressions in its Traffic Policy engine, allowing developers to block traffic from specific geographic locations based on variables such as country code, city, longitude, latitude, and server region. Geoblocking can enhance security, reduce risk, and ensure compliance by restricting access to APIs in regions with uncertain data privacy laws or high malicious activity. Additionally, geoblocking can improve performance by limiting traffic to known user locations and reducing latency for legitimate users. However, it's essential to consider factors such as false positives, performance impact, and compliance vs. usability when implementing geoblocking strategies.