refactored the app export. Update readme.

src/app.js

@@ -1,6 +1,6 @@
 
 import express from 'express'
-import { db } from './db';
+import db from './db.js';
 
 /*
  * utility function to either get the value in the post data
@@ -15,28 +15,25 @@ function valOrMissing(data, key, res) {
 }
 
 
-export function createApp() {
+// Creating an instance of Express
+const app = express();
+app.use(express.json()) // for parsing application/json
 
-    // Creating an instance of Express
-    const app = express();
-    app.use(express.json()) // for parsing application/json
-    
-    app.put("/note", async (req, res) => {
-        const title = valOrMissing(req.body, "title", res);
-        if (!title) return;
-        const text = valOrMissing(req.body, "text", res);
-        if (!text) return;
-        const created = req.body["created"] ? Date.parse(req.body["created"]) : new Date();
-        const id = await db("note").insert({
-            title, text, created
-        }, ["id"])
-        return res.status(202).send({ "note": id[0].id });
-    });
+app.put("/note", async (req, res) => {
+    const title = valOrMissing(req.body, "title", res);
+    if (!title) return;
+    const text = valOrMissing(req.body, "text", res);
+    if (!text) return;
+    const created = req.body["created"] ? Date.parse(req.body["created"]) : new Date();
+    const id = await db("note").insert({
+        title, text, created
+    }, ["id"])
+    return res.status(202).send({ "note": id[0].id });
+});
 
-    app.get("/note/:id", async (req, res, next) => {
-        const note = await db.from("note").where({ id: req.params.id });
-        return res.status(200).send({ "note": note[0] });
-    });
-    
-    return app;
-}
+app.get("/note/:id", async (req, res, next) => {
+    const note = await db.from("note").where({ id: req.params.id });
+    return res.status(200).send({ "note": note[0] });
+});
+
+export default app;

src/app.spec.js

@@ -1,9 +1,6 @@
-import { db } from "./db";
-import { createApp } from "./app";
+import app from "./app";
 import request from "supertest";
 
-const app = createApp();
-
 const note = {
     title: 'Test Note',
     text: 'This is a test note.'

src/db.js

@@ -7,7 +7,7 @@ if (!process.env.DB_URL) {
 };
 
 // Creating an instance of Knex
-export const db = knex({
+export default knex({
     client: 'postgres',
     connection: process.env.DB_URL
 });

src/index.js

@@ -1,13 +1,9 @@
 // Importing express
-import { createApp } from './app';
+
+import app from "./app.js";
 
 (() => {
-    const app = createApp();
-    // Start the Express server
     app.listen(3000, () => {
         console.log('Server started on port 3000');
     });
-})();
-
-// Exporting the app
-export default app;
+})();