How do I invalidate caches on updates with Redis in Go?

        // Example of cache invalidation on data update in Go using Redis

        package main

        import (
            "fmt"
            "github.com/go-redis/redis/v8"
            "context"
            "time"
        )

        var ctx = context.Background()

        func main() {
            // Initialize Redis client
            rdb := redis.NewClient(&redis.Options{
                Addr: "localhost:6379", // Redis server address
            })

            // Update your data in the database
            updateData(rdb, "my-key", "new-value")

            // Invalidate the cache
            invalidateCache(rdb, "my-key")
        }

        // Function to update data
        func updateData(rdb *redis.Client, key string, newValue string) {
            // Here you would implement the logic to update your data in the database
            fmt.Println("Updating data for key:", key)
            // Simulate update (imagine this is a DB operation)
            // After updating, invalidate the cache
            invalidateCache(rdb, key)
        }

        // Function to invalidate cache
        func invalidateCache(rdb *redis.Client, key string) {
            err := rdb.Del(ctx, key).Err()
            if err != nil {
                fmt.Println("Error invalidating cache:", err)
            } else {
                fmt.Println("Cache invalidated for key:", key)
            }
        }