如何在kong插件中使用带有proxy_pass的ngx.location.capture()？

local BasePlugin = require "kong.plugins.base_plugin"

local MyPlugin = BasePlugin:extend()

function MyPlugin:new()
  MyPlugin.super.new(self, "my-plugin")
end

function MyPlugin:access(config)
  MyPlugin.super.access(self)

  -- 构建目标URL
  local target_url = "http://example.com/api" -- 替换为实际的目标地址

  -- 发起内部请求
  local res = ngx.location.capture(target_url)

  -- 处理返回结果
  if res.status == ngx.HTTP_OK then
    -- 请求成功
    ngx.log(ngx.INFO, "Request succeeded: ", res.body)
  else
    -- 请求失败
    ngx.log(ngx.ERR, "Request failed with status: ", res.status)
  end
end

return MyPlugin