Migration: Refactor Express routes to Fastify routes

api-after/src/app.js

@@ -12,7 +12,7 @@ export default async function buildApp() {
 
   await fastify.register(ExpressPlugin);
 
-  fastify.use("/user", routes);
+  fastify.register(routes, { prefix: "/user" });
 
   return fastify;
 }

api-after/src/routes.js

@@ -1,38 +1,27 @@
 // src/routes.js
 
-import express from "express";
 import cors from "cors";
 
-const router = express.Router();
+export default async function routes(fastify) {
+  fastify.use(cors({ origin: true }));
 
-router.use(express.json());
-
-router.use(cors({ origin: true }));
-
-// src/routes.js
-
-router.post("/", function createUser(request, response, next) {
+  fastify.post("/", async function createUser(request, reply) {
     const newUser = request.body;
 
     if (!newUser) {
-    return next(new Error("Error creating user"));
+      throw new Error("Error creating user");
     }
 
-  response.status(201).json(newUser);
+    reply.status(201).send(newUser);
   });
 
-// src/routes.js
-
-router.get("/:user_id", function getUser(request, response, next) {
+  fastify.get("/:user_id", async function getUser(request, reply) {
     const user = {
       id: request.params.user_id,
       first_name: "Bobinsky",
       last_name: "Oso",
     };
 
-  response.json(user);
+    reply.send(user);
   });
-
-// src/routes.js
-
-export default router;
+}