add backend tpl

backend/providers/hashids/hashids.go

@@ -0,0 +1,34 @@
+package hashids
+
+import (
+	"git.ipao.vip/rogeecn/atom/container"
+	"git.ipao.vip/rogeecn/atom/utils/opt"
+
+	"github.com/speps/go-hashids/v2"
+)
+
+func Provide(opts ...opt.Option) error {
+	o := opt.New(opts...)
+	var config Config
+	if err := o.UnmarshalConfig(&config); err != nil {
+		return err
+	}
+	return container.Container.Provide(func() (*hashids.HashID, error) {
+		data := hashids.NewData()
+		data.MinLength = int(config.MinLength)
+		if data.MinLength == 0 {
+			data.MinLength = 5
+		}
+
+		data.Salt = config.Salt
+		if data.Salt == "" {
+			data.Salt = "default-salt-key"
+		}
+
+		if config.Alphabet != "" {
+			data.Alphabet = config.Alphabet
+		}
+
+		return hashids.NewWithData(data)
+	}, o.DiOptions()...)
+}