express plus es6
To use Express.js with ES6, you can follow these steps:
Install Node.js: Before starting, make sure you have Node.js installed on your computer. You can download and install it from the official Node.js website.
Create a new project folder: Open your terminal or command prompt and navigate to the desired location where you want to create your project folder. Then, run the following command to create a new folder:
mkdir my-express-app
- Initialize the project: Navigate into the newly created folder by running the following command:
cd my-express-app
Then, initialize a new Node.js project by running the following command:
npm init -y
This will create a package.json
file in your project folder.
- Install Express.js: Next, you need to install Express.js as a dependency for your project. Run the following command:
npm install express
This will download and install Express.js in your project folder, and update the package.json
file with the dependency.
Create an entry file: In your project folder, create a file called
index.js
orapp.js
(you can choose any name you prefer). This will be the entry point for your Express.js application.Import Express and create an Express app: In your
index.js
orapp.js
file, import Express.js and create a new instance of the Express application. Add the following code:
import express from 'express';
const app = express();
- Set up routes: Define the routes for your application. For example, you can create a simple route that sends a response when a GET request is made to the root URL:
app.get('/', (req, res) => {
res.send('Hello, world!');
});
- Start the server: Finally, start the server and listen for incoming requests. Add the following code at the end of your
index.js
orapp.js
file:
const port = 3000; // or any other port number you prefer
app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});
- Run the application: Save your changes and run the following command in your terminal to start the application:
node index.js
You should see a message in the console indicating that the server is running on the specified port.
That's it! You now have a basic Express.js application set up using ES6. From here, you can continue to build your application by adding more routes, middleware, and functionality as needed.