more refactor

parts/4/blogApp/src/app.js

@@ -1,24 +1,10 @@
 const express = require("express");
-const { models } = require("./db");
+const { addRoutes } = require("./routes");
 const app = express();
 
-const Blog = models.Blog;
-
 app.use(express.json());
 
-app.get("/api/blogs", (request, response) => {
+addRoutes(app);
-  Blog.find({}).then((blogs) => {
-    response.json(blogs);
-  });
-});
-
-app.post("/api/blogs", (request, response) => {
-  const blog = new Blog(request.body);
-
-  blog.save().then((result) => {
-    response.status(201).json(result);
-  });
-});
 
 const PORT = 3003;
 app.listen(PORT, () => {

parts/4/blogApp/src/routes.js

@@ -0,0 +1,22 @@
+const { models } = require("./db");
+const Blog = models.Blog;
+
+BASE_API_PATH = "/api";
+
+const addRoutes = (app) => {
+  app.get(`${BASE_API_PATH}/blogs`, (request, response) => {
+    Blog.find({}).then((blogs) => {
+      response.json(blogs);
+    });
+  });
+
+  app.post(`${BASE_API_PATH}/blogs`, (request, response) => {
+    const blog = new Blog(request.body);
+
+    blog.save().then((result) => {
+      response.status(201).json(result);
+    });
+  });
+};
+
+module.exports = { addRoutes };