Сделал хоум роут с hello world и ссылкой на доку

server/main.js

@@ -24,9 +24,11 @@ const fastify = require('fastify')({
 
 const getRateRoute = require('./routes/getRate.js');
 const configurationRoutes = require('./routes/configuration.js');
+const HomeRoute = require('./routes/home.js');
 
 fastify.register(getRateRoute);
 fastify.register(configurationRoutes);
+fastify.register(HomeRoute);
 
 fastify.listen(
     {

server/routes/home.js

@@ -0,0 +1,8 @@
+module.exports = async function getRateRoute(fastify) {
+    fastify.get('/', async function (req, res) {
+       return res.status(200).send({
+           message: 'Hello World!',
+           documentation: 'https://github.com/Redume/Kekkai/wiki/'
+       })
+    });
+}