如何通过客户端网络发送服务器请求？

The app I developed need send request from my server to a 3rd party server. Normally, it will be like send a init request from a client (Android mobile phone) to my server, then send a request from my server to 3rd party server, wait for response, finally response to client from my server. But due to IP geo restriction, send it directly from my server won't work. It is required to send the request from the client network. And due to the request method changed very frequently and it's very complicated (parsing a lot of websites), I have to deploy it on a server rather than the app. So is it possible to send a request from my server, via client network, to the 3rd party server? How? Thanks in advance.The app I developed need send request from my s