How to Go From Hello World to Building Real World Applications

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A comprehensive guide that walks through building and deploying a real background remover web application from scratch. Covers backend development with Python and FastAPI, frontend creation with vanilla HTML/CSS/JavaScript, handling CORS, and deploying both components to production using Google Cloud Run and GitHub Pages.

#webdev

#javascript

#python

#cicd

#fastapi

Jan 30•25m read time• From freecodecamp.org

Table of contents

Table of Contents You Probably Think You Don't Know Enough How to Find Real World Application Ideas What Are We Going to Build?Prerequisites Step 1: Setting Up the Backend Step 2: Adding Background Removal to the Backend Step 3: Building the Frontend (What the User Actually Sees)Step 4: Putting the Backend on the Internet Step 5: Making the Backend and Frontend Work Together Step 6: Putting the Frontend on the Internet (GitHub Pages)Where You Are Now Final Thoughts: What You Just Built Matters

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