Скачать или смотреть How to Display JSON Data in an HTML Table Using Flask, jQuery, and JavaScript

Learn how to convert JSON data from Flask into a dynamic HTML table with jQuery. Follow our step-by-step guide to display stock prices and quantities efficiently.
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Displaying JSON Data in an HTML Table Using Flask, jQuery, and JavaScript

If you're working with Flask and need to convert JSON data into a HTML table using jQuery, you might encounter some challenges along the way. In this guide, we will address how to take JSON data returned from a Flask endpoint and use jQuery to construct a dynamic table that displays the data clearly and beautifully.

The Problem

You have a Flask application that returns stock prices in JSON format, and you want to take that data and display it in a table format on your webpage. The JSON format looks like this:

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

From this data, your goal is to present it in a table format with the total stock for each unique price. The desired output should look like this:

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

The Solution

To accomplish this, you'll need to implement a few key components: an HTML table structure, a jQuery script to fetch the data, and logic to process and display that data correctly.

Step 1: Create an HTML Table

First, let's set up the HTML structure where the data will be displayed. You'll want to have a table ready in your HTML file for the jQuery script to manipulate. Here's the basic structure:

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

Step 2: Fetch JSON Data with jQuery

Next, you'll implement the jQuery AJAX call that fetches the JSON data from your Flask endpoint. Here’s how you can do it:

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

Explanation of the Code

AJAX Call: The $.ajax method is used to make a request to your Flask endpoint.

Data Processing: The returned JSON data is processed to sum stocks for each unique price.

Dynamic Row Creation: For each unique price, a new row is created and appended to the table body.

Ensuring Proper Functionality

Make sure the Flask endpoint (/prices) is properly set up to return the JSON data in the expected format. Test your code to ensure data is populated in the table only when it's ready.

Conclusion

With these steps, you've created a dynamic HTML table that pulls JSON data from your Flask application using jQuery. This method allows you to present seamless, interactive data to your users. Whether you're building a stock price app or any other project that requires dynamic data presentation, understanding how to manipulate JSON with jQuery is a valuable skill.

By following this guide, you can now efficiently display JSON data in table format, summarizing important metrics for your applications. Happy coding!