ingressu.com

Integrating Flask with Streamlit: A Comprehensive Guide

Written on

Chapter 1: Introduction to Flask and Streamlit

Building a web application using Flask for the backend and Streamlit for the frontend is a structured process that can be broken down into several key steps. Below is a comprehensive guide to help you kickstart your project:

  1. Setting Up the Development Environment
      1. Choose and set up a code editor or IDE, such as Visual Studio Code or PyCharm.
      1. Establish a virtual environment to keep your project dependencies organized. You can use either venv or conda for this purpose.
      1. Within your virtual environment, install Flask and Streamlit by executing pip install flask streamlit.
  2. Creating the Project Structure
    • Set up a new directory for your project and navigate to it using your terminal.

Section 1.1: Developing the Flask Backend

    1. Generate a new file named app.py for your Flask application.
    1. Import Flask and instantiate the application:

from flask import Flask

app = Flask(__name__)

    1. Set up a basic route to act as an API endpoint:

@app.route('/api/data')

def get_data():

return {'data': 'Hello from Flask!'}
    1. Include the main execution point for your Flask app:

if __name__ == '__main__':

app.run(debug=True)

Subsection 1.1.1: Crafting the Streamlit Frontend

    1. Create a new file named frontend.py for your Streamlit application.
    1. Import Streamlit along with any other necessary libraries:

import streamlit as st

import requests

    1. Retrieve data from the Flask API and display it using Streamlit:

def main():

st.title('Streamlit Frontend for Flask API')

response = requests.get('http://localhost:5000/api/data')

data = response.json()

st.write(f"Data from Flask API: {data['data']}")

if __name__ == '__main__':

main()

Section 1.2: Running the Applications

    1. In one terminal, navigate to your project folder and run the Flask application:

python app.py

Your Flask app should now be accessible at http://localhost:5000.

    1. In a separate terminal, go to your project folder and launch the Streamlit application:

streamlit run frontend.py

Your Streamlit app will be available at http://localhost:8501.

  1. Testing the Application

    Open the Streamlit app in your web browser to see the data retrieved from the Flask API. From here, you can begin developing more intricate features and routes by enhancing both your Flask backend and Streamlit frontend.

Chapter 2: Video Resources

This video, titled "Python Advanced 8/30: How to mix Streamlit apps with Flask apps," provides insights into integrating these technologies effectively.

In this video, "Deploy Streamlit Flask App from Colab using Remoteit (ngrok alternative)," you will learn how to deploy your applications seamlessly.

More resources can be found at PlainEnglish.io. Don't forget to subscribe to our weekly newsletter and connect with us on Twitter, LinkedIn, YouTube, and Discord. If you're looking to scale your software startup, consider checking out Circuit.

Share the page:

Twitter Facebook Reddit LinkIn

-----------------------

Recent Post:

Title: Navigating the Chaos of New Parenting and Professional Life

Explore how to manage psychic entropy as a new parent juggling professional responsibilities.

Wireless Power Transmission Breakthrough Using Infrared Technology

Korean engineers achieve a breakthrough in wireless charging using infrared lasers, enabling power transfer over 100 feet without the need for direct contact.

Exploring the Power of Mac Studio: A Deep Dive into Its Capabilities

Delve into the Mac Studio's capabilities, its advantages for development, and how virtualization can optimize resources.

Exploring the Interconnectedness of Reality and Perception

A deep dive into the relationship between love, perception, and reality through the lens of semiotics.

Windows 11: Is It Truly Ready for Everyone After 6 Months?

Evaluating whether Windows 11 is suitable for general use after six months since its release.

Exploring the Beauty Secrets of Ancient Egyptian Priestesses

Uncover the beauty secrets of Ancient Egyptian priestesses, exploring their mystical practices and the symbolism behind their cosmetic rituals.

Apple's $490 Million Lesson: A Case Study in Corporate Responsibility

Apple's $490 million settlement highlights the need for transparency and accountability in corporate governance.

# Navigating the Pressure of the Trending Section on Medium

Exploring the feelings of inadequacy when comparing oneself to trending writers on Medium and the journey toward self-acceptance.