Develop Go Apps

Prerequisites

This tutorial assumes that you have:

  • installed YugabyteDB, created a universe and are able to interact with it using the Redis shell. If not, please follow these steps in Quick start.
  • installed Go version 1.8+

Install the Go Redis driver

To install the driver, locally run the following go get command.

  1. $ go get github.com/go-redis/redis

Writing a HelloWorld Redis application

Create a file ybredis_hello_world.go and copy the contents below.

  1. package main;
  3. import (
  4.   "fmt"
  5.   "log"
  7.   "github.com/go-redis/redis"
  8. )
  10. func main() {
  11.   // Connect to the cluster.
  12.   client := redis.NewClient(&redis.Options{
  13.     Addr:     "localhost:6379",
  14.     Password: "", // no password set
  15.     DB:       0,  // use the default DB
  16.   })
  17.   defer client.Close()
  19.   // Insert some data (for user id 1).
  20.   var userid string = "1"
  21.   ok, err := client.HMSet(userid, map[string]interface{}{
  22.         "name": "John",
  23.         "age": "35",
  24.         "language": "Redis"}).Result()
  26.   if (err != nil) {
  27.     log.Fatal(err)
  28.   }
  29.   fmt.Printf("HMSET returned '%s' for id=%s with values: name=John, age=35, language=Redis\n", ok, userid)
  31.   // Query the data.
  32.   result, err := client.HGetAll("1").Result()
  33.   fmt.Printf("Query result for id=%s: '%v'\n", userid, result)
  34. }

Running the application

To execute the file, run the following command.

  1. $ go run ybredis_hello_world.go

You should see the following as the output.

  1. HMSET returned 'OK' for id=1 with values: name=John, age=35, language=Redis
  2. Query result for id=1: 'map[age:35 language:Redis name:John]'