Первый прототип с основными возможностями

services/link.go

@@ -0,0 +1,44 @@
+package services
+
+import (
+	"context"
+
+	"code.gurenya.net/carlsmei/muninn-aio/db"
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+)
+
+func CreateLink(ctx context.Context, user *ent.User, original_url string, key string) (*ent.Link, error) {
+	client := db.GetEntClient()
+
+	if key == "" {
+		key = GenerateKey(ctx)
+	}
+
+	link, err := client.Link.Create().
+		AddOwner(user).
+		SetKey(key).
+		SetOriginalURL(original_url).
+		Save(ctx)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return link, nil
+}
+
+func GetLinkByKey(ctx context.Context, key string) (*ent.Link, error) {
+	client := db.GetEntClient()
+
+	link, err := client.Link.
+		Query().
+		Where(link.Key(key)).
+		Only(ctx)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return link, nil
+}