Implemented username reserve feature

server/chat/index.js

@@ -0,0 +1,7 @@
+const express = require('express');
+const router = express.Router();
+
+//reserve the name on the chat server (then get out of the way)
+router.post('/reserve', require('./reserve'));
+
+module.exports = router;

server/chat/reserve.js

@@ -0,0 +1,23 @@
+const fetch = require('node-fetch');
+const FormData = require('form-data');
+
+const route = async (req, res) => {
+	//build the fake form data object
+	let form = new FormData();
+	form.append('username', req.session?.account?.username);
+
+	try {
+		//reserve the UUID with the chat server (hop 1)
+		const result = await fetch(`http://${process.env.CHAT_URI}/reserve`, { method: 'POST', body: form });
+
+		const json = await result.json();
+		res.cookie('pseudonym', json.pseudonym);
+		res.status(200).send({ ok: true });
+	} catch(e) {
+		console.error('Chat server not found');
+		res.cookie('pseudonym', '.null');
+		res.status(200).send({ ok: false, error: 'Chat server not found' });
+	}
+};
+
+module.exports = route;