Creds:  credentials.NewStaticV4("minioadmin", "minioadmin", ""),
		Secure: false,
	})
	if err != nil {
		log.Fatalln(err)
	}

	// Set lambda function target via `lambdaArn`
	reqParams := make(url.Values)
	reqParams.Set("lambdaArn", "arn:minio:s3-object-lambda::function:webhook")

	// Generate presigned GET url with lambda function