I want to create a router that is receiving requests and forwarding them to the desired recipients based on a set of rules defined in a infra-as-code way.

• Create a basic HTTP server using the standard net/http package in Go.
• Set up routes and handlers to handle incoming HTTP requests.
• Implement a basic request forwarding mechanism to handle routing.

• [] Design a configuration mechanism that allows users to define routing rules dynamically.
• [] Decide on a configuration format (e.g., YAML, JSON) and create a parser to read and interpret the configuration.
• [] Implement a way to update the configuration without restarting the proxy.

• [] Implement a reverse proxy functionality to forward incoming requests to appropriate backend services.
• [] Handle URL path rewriting during proxying.
• [] Explore how to handle request and response headers during proxying.

• [] Implement load balancing algorithms such as round-robin, least connections, etc.
• [] Decide on a mechanism to track backend server health and availability.
• [] Handle failed requests and retries.

• [] Create a middleware architecture to allow users to modify requests and responses.
• [] Implement middleware modules for common use cases like authentication, rate limiting, logging, etc.

• [] Integrate a service discovery mechanism to automatically detect backend services.
• [] Implement a way to add or remove services dynamically.

• [] Implement TLS termination to handle HTTPS requests.
• [] Explore options for managing SSL certificates.

• [] Integrate a metrics system to collect and monitor proxy-related data.
• [] Decide on metrics to collect, such as request rates, latency, errors, etc.

• [] Set up logging to capture relevant information about requests and proxy behavior.
• [] Implement different log levels and log output formats.

• [] Develop a CLI tool to manage and configure the proxy.
• [] Provide commands to start, stop, reload, and manage proxy instances.

• [] Create comprehensive documentation explaining how to use and configure your proxy.
• [] Include examples and best practices for setting up routing, load balancing, and middleware.

• [] Write unit tests for critical components of the proxy.
• [] Conduct integration tests to ensure all features work together seamlessly.
• [] Perform benchmarking to evaluate the proxy's performance and scalability.