Redirect vs URL rewrite in an API gateway

Ngrok's Traffic Policy engine serves as an API gateway, enabling users to modify traffic behavior through actions like header addition, response compression, and JWT validation. It also facilitates URL rewriting and redirection, which are vital during API migrations. For instance, when transitioning from version 1 to version 2 of an API, the Traffic Policy engine can automatically redirect traffic to the updated endpoints or rewrite URLs without client awareness. Redirects inform clients of endpoint changes via HTTP status codes and require an additional client request, while URL rewrites offer a seamless experience by modifying URLs before reaching the server. Utilizing ngrok's cloud endpoints for these actions eliminates the need for maintaining separate infrastructure, acting like serverless functions. The Traffic Policy engine supports various configurations and integrates with other services, with resources available for deeper exploration and community support.

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