Establish a connection between client and server.

I want to establish a connection between a client and the server. The client is Gateway and the server is Wi-Fi. What I have to do that I need to send a request from the client to the server which will carry passkey and ssid of Wi-Fi then the server will authenticate it if I have passed correct passkey.

Client Ip- "192.168.4.1"
ssid- abcd
passkey-abcd
Server Ip-"192.168.4.10".