add swagger

providers/casdoor/casdoor.go

@@ -1,22 +1,19 @@
 package casdoor
 
 import (
-	"log"
-
 	"github.com/casdoor/casdoor-go-sdk/casdoorsdk"
 	"github.com/rogeecn/atom/container"
 	"github.com/rogeecn/atom/providers/cert"
 	"github.com/rogeecn/atom/utils/opt"
 )
 
-type Casdoor struct {
-}
+type Casdoor struct{}
 
 func Provide(opts ...opt.Option) error {
 	o := opt.New(opts...)
 	var config Config
 	if err := o.UnmarshalConfig(&config); err != nil {
-		log.Fatal(err)
+		return err
 	}
 	return container.Container.Provide(func(cert *cert.Cert) *Casdoor {
 		certificate := config.Certificate