[Golang] In-Memory Cache or Local Cache with Golang.

Here are some Go packages similar in functionality to go-cache:

• github.com/patrickmn/go-cache – This is the go-cache package itself that you referenced. It is a popular in-memory key:value store/cache library for Go.
• github.com/coocood/freecache – A cache library similar to go-cache but aimed to be simpler and faster. Also provides an in-memory key:value store.
• github.com/allegro/bigcache – Implements a large in-memory cache that can hold millions of entries without impacting performance. Focus is on efficiency and avoidingGC pauses.
• github.com/bluele/gcache – Another cache library inspired by go-cache but adds some additional features like multiple eviction policies, LRU/LFU caching, and more.
• github.com/eko/gocache – Supports multiple storage providers (memory, memcache, Redis etc.) and tiered caching configurations. Focused on flexibility.
• github.com/hashicorp/golang-lru – A simple LRU cache implementation for Go. Small and lightweight but fewer features than other caches.
• github.com/hashicorp/go-memdb – In-memory immutable database built on immutable radix trees. Made for caching read-heavy datasets.

Coding

To print each individual value stored under the myKey key in BigCache, you can split the retrieved concatenated string into its constituent parts. Since the values are concatenated with spaces as separators, you can use strings.Split to divide the string into separate values and then print each one. Here’s how to modify the main function to achieve this:

package main

import (
    "fmt"
    "log"
    "strings"
    "time"

    "github.com/allegro/bigcache/v3"
)

// ... [Rest of your code, including the init, AppendCache, and GetCache functions] ...

func main() {
    // Example usage of AppendCache and GetCache
    key := "myKey"

    // Append values in cache
    valuesToAppend := []string{"myValue1", "myValue2", "myValue3"}
    for _, value := range valuesToAppend {
        err := AppendCache(key, value)
        if err != nil {
            log.Fatalf("Error appending cache: %v", err)
        }
    }

    // Get the appended values from cache
    concatenatedValues, err := GetCache(key)
    if err != nil {
        log.Fatalf("Error getting cache: %v", err)
    }

    // Split the concatenated values and print each one
    individualValues := strings.Split(concatenatedValues, " ")
    fmt.Printf("Retrieved values for '%s':\n", key)
    for _, value := range individualValues {
        fmt.Println(value)
    }
}

In this code, AppendCache first tries to retrieve any existing value associated with the key. If the key exists, it appends the new value to the existing value (separated by a space) and stores it back under the same key. If the key does not exist, it simply sets the new value as the value for that key. The GetCache function retrieves the entire concatenated string of values.

In this updated main function, after appending myValue1, myValue2, and myValue3 to the cache, the concatenated string is retrieved and then split into individual values using strings.Split. These individual values are then printed in a loop. Each value will be printed on a new line.