mirror of
https://github.com/silenceper/wechat.git
synced 2026-02-23 13:42:25 +08:00
70 lines
2.0 KiB
Go
70 lines
2.0 KiB
Go
package redpacketcover
|
||
|
||
import (
|
||
"encoding/json"
|
||
"fmt"
|
||
"strings"
|
||
|
||
"github.com/silenceper/wechat/v2/miniprogram/context"
|
||
"github.com/silenceper/wechat/v2/util"
|
||
)
|
||
|
||
const (
|
||
getRedPacketCoverURL = "https://api.weixin.qq.com/redpacketcover/wxapp/cover_url/get_by_token?access_token=%s"
|
||
)
|
||
|
||
// RedPacketCover struct
|
||
type RedPacketCover struct {
|
||
*context.Context
|
||
}
|
||
|
||
// NewRedPacketCover 实例
|
||
func NewRedPacketCover(context *context.Context) *RedPacketCover {
|
||
redPacketCover := new(RedPacketCover)
|
||
redPacketCover.Context = context
|
||
return redPacketCover
|
||
}
|
||
|
||
// CoverParma 小程序码参数
|
||
type CoverParma struct {
|
||
// openid 可领取用户的openid
|
||
OpenID string `json:"openid"`
|
||
// ctoken 在红包封面平台获取发放ctoken（需要指定可以发放的appid）
|
||
CToken string `json:"ctoken"`
|
||
}
|
||
|
||
// fetchCode 请求并返回二维码二进制数据
|
||
func (qrCode *RedPacketCover) fetchCode(urlStr string, body interface{}) (response []byte, err error) {
|
||
var accessToken string
|
||
accessToken, err = qrCode.GetAccessToken()
|
||
if err != nil {
|
||
return
|
||
}
|
||
|
||
urlStr = fmt.Sprintf(urlStr, accessToken)
|
||
var contentType string
|
||
response, contentType, err = util.PostJSONWithRespContentType(urlStr, body)
|
||
if err != nil {
|
||
return
|
||
}
|
||
if strings.HasPrefix(contentType, "application/json") {
|
||
// 返回错误信息
|
||
var result util.CommonError
|
||
err = json.Unmarshal(response, &result)
|
||
if err == nil && result.ErrCode != 0 {
|
||
err = fmt.Errorf("error : errcode=%v , errmsg=%v", result.ErrCode, result.ErrMsg)
|
||
return nil, err
|
||
}
|
||
|
||
return response, nil
|
||
}
|
||
err = fmt.Errorf("error : unknown response content type - %v", contentType)
|
||
return nil, err
|
||
}
|
||
|
||
// GetRedPacketCoverURL 获得指定用户可以领取的红包封面链接。获取参数ctoken参考微信红包封面开放平台
|
||
// 文档地址： https://developers.weixin.qq.com/miniprogram/dev/OpenApiDoc/red-packet-cover/getRedPacketCoverUrl.html
|
||
func (qrCode *RedPacketCover) GetRedPacketCoverURL(coderParams CoverParma) (response []byte, err error) {
|
||
return qrCode.fetchCode(getRedPacketCoverURL, coderParams)
|
||
}
|