feat: support max running tasks config (#112)

pkg/rest/api.go

@@ -33,7 +33,7 @@ func CreateTask(w http.ResponseWriter, r *http.Request) {
 		if req.Rid != "" {
 			taskId, err = Downloader.Create(req.Rid, req.Opts)
 		} else if req.Req != nil {
-			taskId, err = Downloader.DirectCreate(req.Req, req.Opts)
+			taskId, err = Downloader.CreateDirect(req.Req, req.Opts)
 		} else {
 			WriteJson(w, model.NewErrorResult("param invalid: rid or req", model.CodeInvalidParam))
 			return
@@ -195,6 +195,6 @@ func writeError(w http.ResponseWriter, msg string) {
 }
 
 func getServerConfig() *download.DownloaderStoreConfig {
-	_, cfg, _ := Downloader.GetConfig()
+	cfg, _ := Downloader.GetConfig()
 	return cfg
 }