Connect with Go

This example demonstrates how to connect to Dragonfly® using Go, using the go-redis/redis library, which is officially supported with Dragonfly. For more information, see Dragonfly SDKs.

Variables

These are the placeholders you will need to replace in the code sample:

Variable	Description
DRAGONFLY_URI	URL for the Dragonfly® connection

Pre-requisites

First, install the go-redis/redis library:

go get github.com/go-redis/redis/v8

Code

Create a new file named main.go and add the following content, replacing the DRAGONFLY_URI placeholder with your Dragonfly instance’s connection URI:

package main

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

var ctx = context.Background()

func main() {
    dragonflyURI := "DRAGONFLY_URI"

    opts, err := redis.ParseURL(dragonflyURI)
    if err != nil {
        panic(err)
    }

    rdb := redis.NewClient(opts)

    err = rdb.Set(ctx, "key", "hello world", 0).Err()
    if err != nil {
        panic(err)
    }

    val, err := rdb.Get(ctx, "key").Result()
    if err != nil {
        panic(err)
    }
    fmt.Println("The value of key is:", val)
}

This code connects to Dragonfly, sets a key named key with the value hello world (with no expiration), and then retrieves and prints the value of this key.

Run the code

To run the code, use the following command in your terminal:

go run main.go

If everything is set up correctly, the output should be:

The value of key is: hello world