How To Make a URL Shortener with Flask, Hashids and SQLite

How To Make a URL Shortener with Flask, Hashids and SQLite

Learn how to make a URL Shortener with Flask, Hashids and SQLite. Flask is a framework for building web applications using Python and SQLite is a database engine that you can use with Python to store application data. Hashids is a library that generates a short unique ID from integers.

Learn how to make a URL Shortener with Flask, Hashids and SQLite.

Flask is a framework for building web applications using Python and SQLite is a database engine that you can use with Python to store application data.

In this tutorial, you will build a URL shortener, a service that takes any URL and generates a shorter, more readable version like bit.ly.

Hashids is a library that generates a short unique ID from integers. For example, you can use it to convert a number like 12 to a unique string like 1XcId. You will use Hashids to generate unique strings for URL IDs.

You can use unique strings to generate IDs for videos on a video-sharing site or IDs for images on a service to upload images. This unique string gives you unpredictable IDs; therefore, if a user can access an image at your_domain/image/J32Fr, they can’t predict the location of other images. This is not possible if you use integer IDs in a URL shortener—for example, your_domain/image/33 would allow users to predict the location of other images. Unpredictable URLs add a form of privacy to your service because they prevent users from working out different URLs shortened by other users.

You will use Flask, SQLite, and the Hashids library to build your URL shortener. Your application will allow users to enter a URL and generate a shorter version, in addition to a statistics page where users can view the number of times a URL has been clicked. You’ll use the Bootstrap toolkit to style your application.







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