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Back-End Tutorial | POST Method In Express JS | Handling HTTP POST Request With Express JS
Express.js is a popular Node.js framework for building web applications. In this tutorial, we will learn how to handle HTTP POST requests with Express.js using the POST method.
Creating an Express App
First, we need to create a new Express application. You can do this by installing the Express.js package using npm and then creating a new JavaScript file.
$ npm install express
Here is an example of a simple Express application that handles POST requests:
const express = require('express');
const app = express();
app.use(express.json());
app.post('/submit-form', (req, res) => {
const name = req.body.name;
const email = req.body.email;
res.send(`Received POST request with name=${name} and email=${email}`);
});
app.listen(3000, () => console.log('Server running on port 3000'));
Handling POST Requests
In the code above, we use the app.post method to define a route that handles POST requests to /submit-form. When a POST request is sent to this route, the callback function is executed.
We can access the data sent in the POST request using req.body.propertyName. In this example, we extract the name and email properties from the request body.
Finally, we send a response back to the client using the res.send method.
Conclusion
Handling HTTP POST requests is essential for building dynamic web applications. Express.js makes it easy to handle POST requests with its simple and intuitive API.
By following this tutorial, you should now have a basic understanding of how to handle POST requests with Express.js and build more interactive web applications.
