Скачать или смотреть Rendering JavaScript Files from External Links in Node.js

Discover how to efficiently redirect users in Node.js after form submission and render your homepage content dynamically with this comprehensive step-by-step guide.
---
This video is based on the question https://stackoverflow.com/q/62554264/ asked by the user 'Saeedeh' ( https://stackoverflow.com/u/1305925/ ) and on the answer https://stackoverflow.com/a/62554320/ provided by the user 'macborowy' ( https://stackoverflow.com/u/1330105/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: render js file from other link using node js

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Rendering JavaScript Files from External Links in Node.js: A Simple Guide

Web development using Node.js can sometimes present challenges, especially when dealing with form submissions and page redirects. Have you ever encountered a situation where you want to save data when a form is submitted and then direct users back to the home page? This is a common scenario in modern web applications.

In this guide, we will explore how to properly redirect users after submitting a form in a Node.js application using Express. We'll break down the problem and provide a clear and concise solution that you can implement right away.

Understanding the Problem

Let’s say you have a simple HTML form in your application that looks like this:

[[See Video to Reveal this Text or Code Snippet]]

When the submit button is clicked, this form sends a POST request to the /write endpoint of your Node.js application’s app.js file. After the data is saved (in a database, for example), you likely want the user to be redirected to the home page, which loads the index.ejs file.

The key here is to make sure that after the data being saved, the user is redirected to the right location.

Solution Overview

The default behavior in web applications is to redirect users after a successful POST request. This is a good practice, as it helps avoid duplicate form submissions if users refresh the page.

To implement this in your Node.js application, you can use the following steps:

1. Handling Form Submission

In your Express app.js, you will handle the form submission at the /write endpoint. Here's a sample implementation:

[[See Video to Reveal this Text or Code Snippet]]

2. Redirecting to the Home Page

After you’ve executed the save operation, the res.redirect('/') command will instruct the server to send a redirect response to the client. This response tells the user's browser to go to the home page of your application.

3. Rendering the Home Page with Data

In the home page route, you might want to render the index.ejs file and possibly display data from the database. Here’s an example of what that might look like:

[[See Video to Reveal this Text or Code Snippet]]

Putting It All Together

To summarize, the complete flow for handling user form submissions and displaying the home page would look something like this:

User submits a form that sends a POST request to /write.

Your server saves the data and executes res.redirect('/').

The browser follows the redirect and sends a GET request to /, which then renders the index.ejs file, showing any relevant data.

Key Benefits of This Approach

Prevents Duplicate Submissions: Redirecting after a POST request helps mitigate the issue of users accidentally submitting the form multiple times.

User Experience: Users appreciate when they are clearly taken to a confirmation or results page after submitting a form.

Clean URL Handling: This structure keeps your URL clean and user-friendly.

Final Thoughts

Adopting the right approach when dealing with form submissions and user redirection in Node.js can elevate the quality of your web application. With the outlined solution, you can handle form data efficiently and enhance overall user interaction.

Try implementing this example in your next Node.js project, and experience improved data handling and user experience! Happy coding!