feat: add lambda transformation functions target (#16507)

internal/config/lambda/config.go

@@ -0,0 +1,40 @@
+// Copyright (c) 2015-2023 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package lambda
+
+import "github.com/minio/minio/internal/event/target"
+
+// Config - lambda target configuration structure, holds
+// information about various lambda targets.
+type Config struct {
+	Webhook map[string]target.WebhookArgs `json:"webhook"`
+}
+
+const (
+	defaultTarget = "1"
+)
+
+// NewConfig - initialize lambda config.
+func NewConfig() Config {
+	// Make sure to initialize lambda targets
+	cfg := Config{
+		Webhook: make(map[string]target.WebhookArgs),
+	}
+	cfg.Webhook[defaultTarget] = target.WebhookArgs{}
+	return cfg
+}