postman returning 404 for the node.js endpoint

Question

I am trying to create a simple rest endpoint using node.js. I am following the tutorial https://medium.freecodecamp.com/building-a-simple-node-js-api-in-under-30-minutes-a07ea9e390d2

the folder structure is notable/app/routes/ and the routes folder contains the index.js and note_routes.js files

I am able to run the command npm run dev, and the output shown is:

> notable@1.0.0 dev /Users/tejanandamuri/Desktop/notable
> nodemon server.js

[nodemon] 1.11.0
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node server.js`
We are live on 8000

after this. in the postman, when I try to call the http://localhost:8000/notes, it is returning 404 error with the response body Cannot POST /notes

Here are my files:

server.js:

const express        = require('express');
const MongoClient    = require('mongodb').MongoClient;
const bodyParser     = require('body-parser');
const app            = express();
const port = 8000;
require('./app/routes')(app, {});
app.listen(port, () => {
  console.log('We are live on ' + port);
});

index.js:

// routes/index.js
const noteRoutes = require('./note_routes');
module.exports = function(app, db) {
  noteRoutes(app, db);
  // Other route groups could go here, in the future
};

note_routes.js

module.exports = function(app, db) {
  app.post('/notes', (req, res) => {
    // You'll create your note here.
    res.send('Hello')
  });
};

package.json:

{
  "name": "notable",
  "version": "1.0.0",
  "description": "my first rest api",
  "main": "server.js",
  "dependencies": {
    "body-parser": "^1.17.2",
    "express": "^4.15.3",
    "mongodb": "^2.2.28"
  },
  "devDependencies": {
    "nodemon": "^1.11.0"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node server.js",
    "dev": "nodemon server.js"
  },
  "author": "venkata",
  "license": "ISC"
}

Answer 1

Change line 6 in server.js to require('./routes/note_routes')(app, {});

This assumes your file tree looks something like this:

.
+--/node_modules // this contains a ton of sub-folders
+--/routes
+  +--index.js
+  +--note_routes.js
+--package.json
+--server.js