add basic auth with uuid-based access tokens

backend/internal/services/accessTokens.go

@@ -0,0 +1,24 @@
+package services
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/wisplite/raster/internal/db"
+	"github.com/wisplite/raster/internal/models"
+)
+
+func CreateAccessToken(userID string) (models.AccessToken, error) {
+	token := uuid.New().String()
+	expires := time.Now().Add(time.Hour * 24 * 30)
+	accessToken := models.AccessToken{
+		Token:   token,
+		UserID:  userID,
+		Expires: expires,
+	}
+	result := db.GetDB().Create(&accessToken)
+	if result.Error != nil {
+		return models.AccessToken{}, result.Error
+	}
+	return accessToken, nil
+}