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React Developer, Python and Node.js Developer Needed
Upwork • , US • Remote
$15 - $35 / HOUR
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Posted on: 20th March, 2025
Employment Type: CONTRACTOR
Job Description
React + Flask API Integration (CORS Fix & API Debugging)
Budget: Open to proposals
Experience Level: Intermediate to Expert
Preferred Location: Argentina (but open to others)
Project Overview:
I’m developing a React frontend that connects to a Flask backend via API. The backend sends automated messages through a third-party API. However, I’m facing a CORS issue, and my frontend is unable to communicate with the backend properly.
I need an experienced React + Flask developer to:
✅ Fix the CORS policy issue
✅ Debug API requests from React to Flask
✅ Ensure messages are correctly sent using the existing backend logic
Scope of Work:
Fix CORS Policy Issue:
Ensure the frontend can successfully send requests to the backend.
Debug and adjust Flask CORS settings if needed.
Verify API Requests from React:
Ensure form submission correctly triggers the API endpoint.
Debug any fetch request issues in React.
Confirm Message-Sending Logic Works:
The backend already integrates with a third-party messaging API.
Ensure user data is properly sent when triggering messages.
Code Explanation (Preferred):
A short breakdown of the fixes made.
Best practices for React + Flask API communication.
Tech Stack:
Frontend: React (Vite, TailwindCSS)
Backend: Flask (Python, SQLAlchemy, Flask-CORS)
Database: PostgreSQL
Hosting: Running locally & exposed via a temporary tunnel service
API: Third-party messaging service
Ideal Candidate:
✅ Experienced with React & Flask API integration
✅ Strong knowledge of CORS policies & security
✅ Experience working with third-party APIs
✅ Willing to explain the solution in simple terms
✅ Preferably based in Argentina (budget & time zone convenience)
How to Apply:
Briefly describe how you’d fix the CORS issue.
Have you worked with React + Flask API communication before?
Your expected hourly rate (or fixed price estimate).
Looking forward to working with you! 🚀
Budget: Open to proposals
Experience Level: Intermediate to Expert
Preferred Location: Argentina (but open to others)
Project Overview:
I’m developing a React frontend that connects to a Flask backend via API. The backend sends automated messages through a third-party API. However, I’m facing a CORS issue, and my frontend is unable to communicate with the backend properly.
I need an experienced React + Flask developer to:
✅ Fix the CORS policy issue
✅ Debug API requests from React to Flask
✅ Ensure messages are correctly sent using the existing backend logic
Scope of Work:
Fix CORS Policy Issue:
Ensure the frontend can successfully send requests to the backend.
Debug and adjust Flask CORS settings if needed.
Verify API Requests from React:
Ensure form submission correctly triggers the API endpoint.
Debug any fetch request issues in React.
Confirm Message-Sending Logic Works:
The backend already integrates with a third-party messaging API.
Ensure user data is properly sent when triggering messages.
Code Explanation (Preferred):
A short breakdown of the fixes made.
Best practices for React + Flask API communication.
Tech Stack:
Frontend: React (Vite, TailwindCSS)
Backend: Flask (Python, SQLAlchemy, Flask-CORS)
Database: PostgreSQL
Hosting: Running locally & exposed via a temporary tunnel service
API: Third-party messaging service
Ideal Candidate:
✅ Experienced with React & Flask API integration
✅ Strong knowledge of CORS policies & security
✅ Experience working with third-party APIs
✅ Willing to explain the solution in simple terms
✅ Preferably based in Argentina (budget & time zone convenience)
How to Apply:
Briefly describe how you’d fix the CORS issue.
Have you worked with React + Flask API communication before?
Your expected hourly rate (or fixed price estimate).
Looking forward to working with you! 🚀
Responsibilities
- I’m developing a React frontend that connects to a Flask backend via API
- The backend sends automated messages through a third-party API
- ✅ Debug API requests from React to Flask
- ✅ Ensure messages are correctly sent using the existing backend logic
- Ensure the frontend can successfully send requests to the backend
- Debug and adjust Flask CORS settings if needed
- Ensure form submission correctly triggers the API endpoint
- Debug any fetch request issues in React
- The backend already integrates with a third-party messaging API
- Ensure user data is properly sent when triggering messages
- A short breakdown of the fixes made
- Best practices for React + Flask API communication
- Frontend: React (Vite, TailwindCSS)
- Hosting: Running locally & exposed via a temporary tunnel service
Requirements
- ✅ Experienced with React & Flask API integration
- ✅ Strong knowledge of CORS policies & security
- ✅ Experience working with third-party APIs
- ✅ Willing to explain the solution in simple terms
- ✅ Preferably based in Argentina (budget & time zone convenience)
Upwork
Technology
Job Type
CONTRACTOR
Benefits
- Experience Level: Intermediate to Expert
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