Need to include URL in backend

Hello,
I am trying to configure something where need to route traffic in URL backend.

frontend api-gateway-frontend
bind *:5500
mode tcp
default_backend api-gateway-backend

backend api-gateway-backend
mode tcp
server server1 apigateway.msra.abcd.com.au:443

Requirement is to listen in 5500 port in haproxy server and will forward to https://apigateway.msra.abcd.com.au URL. is it possible? this configuration is not working. Please help.