tic-tac-toe

ReasonDojo 2 starter app

Make sure to install the toolchain: https://reasonml.github.io/docs/en/editor-plugins.html for some fun fun in-editor type errors and autocomplete.

Your task

This project contains a single-player implementation of a tic-tac-toe game.

The goal of this project is to realize that one can share type information and business logic between the server and the client, all such that the type checker ensures the client and server both correctly talk to each other.

Your task is to use reasonml-community/bs-socket.io to make it multi-player. At then end you should be able to have two browser windows open side by side and be able to play against yourself (because all your friends are out partying on this Friday evening so why on earth are you at home?! Well because you love Reason).

If you'd like to read over an example solution, to compare or simply because you're lazy ;), you can check the solution branch.

Run Project

npm install
npm start
# in yet-another tab
node server.js

This will start a simple express server at localhost:3000 which will deliver your app.

You need to restart your server (node server.js) each time you change Server.re. For the client changes you can just refresh.

server.js

Simplest express setup possible to deliver a static HTML page. It calls a function exposed by Server.re and gives it the http object, which is useful for doing the socket.io stuff ;) You don't need to touch this file.

Server.re

That's where you'll write your server-side logic for talking to the client.

Main.re

The main tic tac toe game, and where you can write all of the client-side logic for talking to the server.

Index.re

Well that one's pretty straightforward.