您可以通过在第一个api的响应块内调用第二个api来直接传递第一个api的响应。

private func callFirstApi() {
    Alamofire.request("http://GetConstantTableList",method: .get,encoding: encoding,headers: [ "Accept":"application/json","Authorization":"Bearer \(token ?? "")"])
        .responseJSON { response in
            switch response.result {
            case .success(let value):
                if let parameters = value as? [String: Any] {
                    callSecondApi(with: parameters)
                }

            case .failure(let error):
                print(error.localizedDescription)
            }
    }
}

private func callSecondApi(with parameters: [String: Any]) {
    Alamofire.request("http://GetConstantTableData",method: .post,parameters: parameters,"Authorization":"Bearer \(token ?? "")"])
        .responseJSON { response in
            print(response)
    }
}