Redis - Configuration

The gredis component supports two methods for managing redis configurations and obtaining redis objects: one is through the configuration component + singleton object approach; the other is modularized using configuration management methods and object creation methods.

Configuration File (Recommended)

In most cases, it is recommended to use the g.Redis singleton approach to operate redis. Therefore, using configuration files to manage Redis configurations is also recommended. An example configuration in config.yaml is as follows:

Single Instance Configuration

## Redis Configuration Example
redis:
  # Single Instance Example 1
  default:
    address: 127.0.0.1:6379
    db:      1

  # Single Instance Example 2
  cache:
    address:     127.0.0.1:6379
    db:          1
    pass:        123456
    idleTimeout: 600

Here, default and cache represent configuration group names. In the program, you can obtain the corresponding redis singleton object using this name. If no group name is passed, the redis.default configuration group is used by default to obtain the corresponding redis client singleton object.

Cluster Configuration

## Redis Configuration Example
redis:
   # Cluster Mode Configuration Method
  default:
    address: 127.0.0.1:6379,127.0.0.1:6370
    db:      1

Configuration Item Description

Usage Example:

config.yaml

## Redis Configuration Example
redis:
  # Single Instance Example 1
  default:
    address: 127.0.0.1:6379
    db:      1
    pass:    "password" # Set password here, remove if not needed
``` ```
package main

import (
    "fmt"

    _ "github.com/gogf/gf/contrib/nosql/redis/v2"

    "github.com/gogf/gf/v2/frame/g"
    "github.com/gogf/gf/v2/os/gctx"
)

func main() {
    var ctx = gctx.New()
    _, err := g.Redis().Set(ctx, "key", "value")
    if err != nil {
        g.Log().Fatal(ctx, err)
    }
    value, err := g.Redis().Get(ctx, "key")
    if err != nil {
        g.Log().Fatal(ctx, err)
    }
    fmt.Println(value.String())
}

After execution, the output is:

Configuration Method (Advanced)

Since GoFrame is a modular framework, apart from using the coupled and convenient g module to automatically parse configuration files and obtain singleton objects, it also supports modular use of the gredis package by capable developers.

gredis provides global group configuration capabilities, with related configuration management methods as follows:

func SetConfig(config Config, name ...string)
func SetConfigByMap(m map[string]interface{}, name ...string) error
func GetConfig(name ...string) (config Config, ok bool)
func RemoveConfig(name ...string)
func ClearConfig()

Usage Example:

package main

import (
    "fmt"

    _ "github.com/gogf/gf/contrib/nosql/redis/v2"

    "github.com/gogf/gf/v2/database/gredis"
    "github.com/gogf/gf/v2/frame/g"
    "github.com/gogf/gf/v2/os/gctx"
)

var (
    config = gredis.Config{
        Address: "127.0.0.1:6379",
        Db:      1,
        Pass:    "password",
    }
    group = "cache"
    ctx   = gctx.New()
)

func main() {
    gredis.SetConfig(&config, group)

    _, err := g.Redis(group).Set(ctx, "key", "value")
    if err != nil {
        g.Log().Fatal(ctx, err)
    }
    value, err := g.Redis(group).Get(ctx, "key")
    if err != nil {
        g.Log().Fatal(ctx, err)
    }
    fmt.Println(value.String())
}