自建一个简易的OpenAPI网关

$appId = 'app id';     
$appSecret = 'app secret';     
$api = 'api method';     
     
// 业务参数     
$businessParams = [     
  'orderId' => '123123132',     
];     
     
$time = time();     
$params = [     
  'p'  => json_encode($businessParams),     
  'm'  => 'inquiry',     
  'a'  => $api,     
  't'  => $time,     
  'v'  => 1,     
  'ak' => $appId,     
];     
     
$signStr = implode('', array_values($params)) . $appSecret;     
$sign = strtolower(substr(md5($signStr), 0, 16));     
     
$params['s'] = $sign;     

$ etcdctl set /openapi/app/baidu '{     
    "Id": "baidu",     
    "Secret": "00cf2dcbf8fb6e73bc8de50a8c64880f",     
    "Modules": {     
        "inquiry": {     
            "module": "inquiry",     
            "CallBack": "http://www.baidu.com"     
        }     
    }     
}'     
     

$ etcdctl set /openapi/backend/form_openapi '{     
    "type": "form",     
    "Url": "http://med-ih-openapi.app.svc.cluster.local"     
}'     

$ etcdctl set /openapi/api/inquiry/createMedicine.v2 '{     
    "Module": "inquiry",     
    "Method": "createMedicine",     
    "Backend": "form_openapi",     
    "ApiParams": {     
        "path": "inquiry/medicine-clinic/create"     
    }     
}'     

const (     
AppId = "__inquiry"     
AppSecret = "xxxxxxxxxx"     
Version = "1"     
)     
     
type CallbackReq struct {     
TargetAppId string                 //目标APP Id     
Module      string                 //目标模块     
Event       string                 //事件     
Params      map[string]interface{} //参数     
}     
     
func generateData(req CallbackReq) map[string]string {     
    params, _ := json.Marshal(req.Params)     
p := map[string]interface{}{     
"ak": req.TargetAppId,     
"m":  req.Module,     
"e":  req.Event,     
"p":  string(params),     
}     
     
pStr, _ := json.Marshal(p)     
postParams := map[string]string{     
"p":  string(pStr),     
"m":  "callback",     
"a":  "callback",     
"t":  fmt.Sprintf("%d", time.Now().Unix()),     
"v":  Version,     
"ak": AppId,     
}     
     
postParams["s"] = sign(getSignData(postParams) + AppSecret)     
     
return postParams     
}     
     
func getSignData(params map[string]string) string {     
return strings.Join([]string{params["p"], params["m"], params["a"], params["t"], params["v"], params["ak"]}, "")     
}     
     
func sign(str string) string {     
return strings.ToLower(utils.Md5(str)[0:16])     
}