AWS API Gateway Websocket可以通过使用负载均衡器来扩展和处理高流量。下面是一些使用AWS Application Load Balancer（ALB）和AWS WebSocket API Gateway实现负载均衡的示例代码：

resource "aws_alb_target_group" "websocket" {
  name_prefix = "websocket"
  port = 80
  protocol = "HTTP"
  vpc_id = "${var.vpc_id}"
}

resource "aws_alb_listener" "websocket" {
  load_balancer_arn = "${aws_alb.main.arn}"
  port = 80
  protocol = "HTTP"

  default_action {
    type = "forward"
    target_group_arn = "${aws_alb_target_group.websocket.arn}"
  }
}

resource "aws_api_gateway_deployment" "websocket" {
  rest_api_id = "${aws_api_gateway_rest_api.websocket.id}"
  stage_name = "prod"
  stage_description = "Production"
  lifecycle {
    create_before_destroy = true
  }
}

resource "aws_api_gateway_integration" "websocket" {
  rest_api_id = "${aws_api_gateway_rest_api.websocket.id}"
  resource_id = "${aws_api_gateway_resource.websocket.id}"
  http_method = "POST"
  integration_http_method = "POST"
  type = "HTTP"
  uri = "${aws_alb.main.dns_name}"
  connection_type = "VPC_LINK"
  connection_id = "${aws_api_gateway_vpc_link.websocket.id}"
}

resource "aws_api_gateway_method" "websocket" {
  rest_api_id = "${aws_api_gateway_rest_api.websocket.id}"
  resource_id = "${aws_api_gateway_resource.websocket.id}"
  http_method = "POST"
  authorization = "NONE"
}

resource "aws_api_gateway_resource" "websocket" {
  rest_api_id = "${aws_api_gateway_rest_api.websocket.id}"
  parent_id = "${aws_api_gateway_rest_api.websocket.root_resource_id}"
  path_part = "{proxy+}"
}

resource "aws_api_gateway_rest_api" "websocket" {
  name = "websocket"
}

resource "aws_api_gateway_vpc_link" "websocket" {
  name = "websocket"
  target_arns = ["${aws_alb_target_group