# 微信SDK
# silenceper
## 配置参数
```go
package wx
// 公众号配置
const (
AppID = "wx7fa401xe810n1eb7"
AppSecret = "35673237f5676a727b45b22f4ca8e34a"
EncodingAESKey = ""
)
// 微信支付配置
const (
MchID = "1602872469" // 商户ID
Key = "454dawdahhWWW441D8EXDle454741211" // 商户Key
NotifyURL = "http://www.test.com/v1/notify" // 通知回调链接
)
```
## 初始化
```go
package wx
import (
"github.com/silenceper/wechat/v2"
"github.com/silenceper/wechat/v2/cache"
"github.com/silenceper/wechat/v2/miniprogram"
miniConfig "github.com/silenceper/wechat/v2/miniprogram/config"
"github.com/silenceper/wechat/v2/officialaccount"
offConfig "github.com/silenceper/wechat/v2/officialaccount/config"
"github.com/silenceper/wechat/v2/pay"
payConfig "github.com/silenceper/wechat/v2/pay/config"
)
var WC *wechat.Wechat // 微信
var Official *officialaccount.OfficialAccount // 微信公众号
var MiniProgram *miniprogram.MiniProgram // 微信小程序
var Pay *pay.Pay // 微信支付
var memory *cache.Memory // 微信缓存
func init() {
WC = wechat.NewWechat()
memory = cache.NewMemory()
InitOfficial()
InitMiniProgram()
InitPay()
}
func InitOfficial() {
cfg1 := &offConfig.Config{
AppID: AppID,
AppSecret: AppSecret,
Cache: memory,
}
Official = WC.GetOfficialAccount(cfg1)
}
func InitMiniProgram() {
cfg2 := &miniConfig.Config{
AppID: AppID,
AppSecret: AppSecret,
Cache: memory,
}
MiniProgram = WC.GetMiniProgram(cfg2)
}
func InitPay() {
cfg3 := &payConfig.Config{
AppID: AppID,
MchID: MchID,
Key: Key,
NotifyURL: NotifyURL,
}
Pay = WC.GetPay(cfg3)
}
```
## 使用
```go
package main
import (
"fmt"
"os"
)
func main() {
// 注：使用该工具无需关注AccessToken的获取&失效问题
// 工具内部已经封装对AccessToken的缓存与刷新逻辑
// 用户只需关注实际需要调用的API即可
// 示例：获取公众号所有用户openid
ds, err := wx.Official.GetUser().ListAllUserOpenIDs()
if err != nil {
fmt.Println(err)
} else {
fmt.Println("count", len(ds))
for i, v := range ds {
fmt.Println(i, v)
}
}
}
```
打印结果
```bash
count 59
0 otlUS1HpVEUEnE-64Q3EZDbxvV2g
1 otlUS1BxyVhVUD44QoJZ-mSokB_c
2 otlUS1O64PI6svk4tvGa6oU3rfSk
3 otlUS1DEse6XKfyJd2WyV5hliNCs
...
57 otlUS1DdGvBajcxni1szCyNeiYsk
58 otlUS1EH6jiBHlXzMLqBgFz2vvBs
```
