Building HTTP Services and Webhooks

Create an HTTP server using the `net/http` package to handle incoming requests

Implement request routing using `http.ServeMux` or a third-party router

Build HTTP handlers for GET and POST requests involving JSON payloads

Apply the middleware pattern for centralized logging and authentication

Implement a centralized error handling middleware for consistent API responses

Serve static files and handle file uploads from a web client

Implement graceful shutdown for an HTTP server to prevent dropping connections