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Python is already used in the backend of most web applications, but sadly it does not work with web browsers to drive the frontend of those applications. Transcrypt can help by creating more coherent web-based projects, using Python to write both the backend and the frontend.

This course builds on the lessons in Using the Python Transcrypt Transipler for Front-end Coding to implement a complete React and Python web-based project. In each chapter, we will refactor existing code to add new functionality, building up the application as you go. Each chapter ends with a running application that includes all of the features we added up to that specific point.

Using Python and Transcrypt to Build a Complete Web Application

## About the application

In this application, we’ll look at our updated `fetch` function that uses the `method` keyword to determine the type of HTTPS request. It also has an `onError` keyword that gets triggered in case of any error in fetching data.   It has an additional Google Analytics call that will record the URL requested by the client. Lastly, the `buildParams()` function gets properly delineated and encoded as a query string.


This is what the application will look like:

# About the application

In this application, we’ll look at our updated `fetch` function that uses the `method` keyword to determine the type of HTTPS request. It also has an `onError` keyword that gets triggered in case of any error in fetching data.   It has an additional Google Analytics call that will record the URL requested by the client. Lastly, the `buildParams()` function gets properly delineated and encoded as a query string.


This is what the application will look like:

Get an overview of the new capabilities of our fetch function in this lesson.

 Updated Fetch Function

Introduction

Environment Setup

Landing Page

Modal View

REST Service

Books

Menus

User Login

Lookups

User Context

Editing Lookups

Filtering Data

Editing Books

SPA Redirect

Deploying the Application

Conclusion

Updated Fetch Function

About the application