Urgent Repair of E-commerce Site Backend

@rahuliitm69

Hi there, I have spent the decade working on full-stack deployments involving React, Node/FastAPI backends, MongoDB, payment gateways, OAuth integrations, and fixing broken production environments. As your frontend is already deployed on Vercel and the backend was never deployed properly, the main issue is that the frontend currently has no live API service connected to it. Once you share the GitHub access and platform credentials, I will deploy the backend, configure MongoDB Atlas and all environment variables properly, update Razorpay webhooks and Google OAuth redirect URIs, reconnect the frontend with the live backend, and test the complete order flow end-to-end. I can start immediately and complete this within the next 24–48 hours. Thanks, Rahul A.

@proy89

Hi there, Your site needs both Vercel and Render/Railway because Vercel serves your static React frontend (bundled JS/HTML/CSS), while the backend — FastAPI, MongoDB connections, Razorpay webhooks, OAuth callbacks — requires a persistent server-side runtime with environment variables and open endpoints that Vercel's serverless model isn't ideal for. My approach: clone your GitHub repo, deploy the FastAPI backend to Render (free tier sufficient), connect MongoDB Atlas with your existing credentials, configure all env vars (JWT secret, Razorpay keys, Google OAuth client ID/secret, SendGrid, CORS origin pointing to your Vercel domain). Then update REACTAPPBACKEND_URL on Vercel, redeploy the frontend, fix the Google OAuth redirect URI in Cloud Console, and update the Razorpay webhook URL. Finally full E2E testing — signup, login, cart, payment, order confirmation email. The trickiest part is ensuring Razorpay webhooks reliably reach your new backend, so I'll validate that with test transactions early. GitHub: I'll share my profile link via direct message — it contains multiple full-stack projects including deployed e-commerce and ERP systems. Live project URL: I'll send via DM, fully functional right now. Earliest start: today, immediately. Thanks for the thorough brief — I'm confident I can get this fully operational within 24 hours. Please get in touch so I can share my credentials and we can move fast. Looking forward to it!

@himanshu0818

Hi, I have 15+ years of full-stack experience and use AI tools to fix issues fast with quality and low budget. Your frontend is on Vercel, but backend needs Render/Railway to handle APIs, database, payments, and login. I can start today, complete in 24–48 hours, fully test everything, and deliver a working live store.

@jayantkumar314

I can start immediately and fix this within your timeline. I have experience deploying full-stack apps with React, Node/FastAPI, MongoDB Atlas, Vercel, Render/Railway, payment gateway integrations, OAuth setup, webhooks, and production debugging. Why both Vercel and Render/Railway? Vercel is ideal for serving your React frontend, while Render/Railway runs the backend API/server processes your frontend depends on. Since your frontend is currently pointing to itself instead of a backend API, authentication, payments, and order processing fail. I can handle the full deployment, environment configuration, webhook/OAuth updates, and complete end-to-end production testing.

@ssquare489

As a seasoned full-stack developer with a unique blend of skills and experiences, I am well positioned to provide immediate solutions to your broken e-commerce site. With proficiency in React, FastAPI, Node.js, MongoDB, and Vercel, I bring solid expertise to fix the core issue of your backend deployment promptly. My past work on similar projects showcases my ability to identify and resolve complex technical challenges swiftly. I understand that your primary concern is to have the backend properly deployed on Render or Railway and seamlessly connected to MongoDB Atlas. Rest assured, I've got you covered. I'm adept at configuring various backend environment variables like Razorpay, Google OAuth, SendGrid, JWT, and CORS; enabling smooth communication across different services. Moreover, my familiarity with Google Cloud Console will be invaluable in updating the Google OAuth redirect URIs and Razorpay webhook URL for the new backend. Unlike off-platform contractors who can be unreliable or pose security risks, as an experienced professional who values client trust, I ensure all work happens on the designated platform only. And since payment method entwines with order processing for an e-commerce site; it becomes evident why choosing me matters as I assure adherence to the desired functionality during end-to-end testing.

@gameprogrammer13

A fully functional e-commerce store is not only a necessity but also the lifeline of your business. I understand the frustration and urgency revolving around a broken backend that is inhibiting Login, payment, and orders for your site - and I'm here to offer my expertise in fixing them without delay. My professional experience incudes using JavaScript frameworks such as React and Node.js to build robust web applications and deploy them on platforms like Vercel, Render, and Railway. To answer your question, your site needs both Vercel and places like Render/Railway as they serve complementary roles. While Vercel powers your front-end domain, services like Render/Railway deal with deploying backends and ensuring their smooth running; it's the perfect blend to guarantee optimal performance. I can start immediately upon engagement and being an experienced freelancer, vow to complete a thorough job within the stipulated time frame demands and budget.

@gauravl3

With a wealth of knowledge and experience in full-stack development, cloud solutions, and AI integration, my team and I are uniquely positioned to address the urgent repair needs for your e-commerce site's backend. We understand the gravity of the situation, and the impact non-functional frontend-backend connections can have on user experience as well as sales. Specifically, our strong command over React.js, Node.js, FastAPI/Node + MongoDB ensures that we can proficiently deal with the technology stack currently in use for your project. Our prior expertise with Vercel would enable us to navigate through potential deployment challenges, live-testing to ensure seamless backend functionality and smooth fronend-backend integration. In addition to our technical skills, we believe in effective communication, punctuality and delivering solid results on time. With quick access to all necessary credentials including GitHub (provided as write-only collaborator) plus team access, we are ready to dive into your project now! Completing this job within your stipulated timeline while offering high performance architecture is our main goal.

@nsinfosoftwebapp

With 8+ years of experience under my belt, I'm confident that I'm the best fit for your urgent project. My skills span across React.js, Node.js, and Python, making me a seasoned full-stack developer who is well-versed in tackling challenges like yours. In previous projects, I have successfully built and deployed multiple e-commerce platforms similar to yours, focusing on critical functionalities including login, payment gateways, and order processing. One such live example of my capability is " ... (Provide a real-life project URL here)" where you can see my work in action. To address the specific requirements of your project, I have significant experience in DevOps and deployment on platforms like Vercel, Render and Railway. Understanding the role each plays in your website is crucial. Vercel is known for hosting front-end applications with ease and render servers while Render/Railway offers scalable server deployment options for backends. By harnessing the power of both platforms efficiently, I aim to establish a robust backend environment and ensure seamless end-to-end functionality with minimal downtime.

@monicasynthesis

Hello, I’ve gone through your job description and understand that you need urgent help to fix your broken backend deployment affecting login, payments, and orders on your live React + FastAPI/Node + MongoDB e-commerce site. With 5+ years of full-stack and DevOps experience, I’ve handled similar production deployment issues. What I can help you with: • Deploy backend on Render/Railway + connect MongoDB Atlas • Fix API, env vars, CORS, OAuth & Razorpay integration • End-to-end testing of full purchase flow Warm regards, Monica Bhatia

@webnsoftindia

**** URGENT: Full-Stack Backend Deployment Fix (React + FastAPI/Node + MongoDB) **** Hello, I've checked your project and I understood you need urgent full-stack debugging and deployment support to fix a broken backend setup where the frontend is live on Vercel but the backend is not deployed correctly, causing failures in login, payments, and order processing. I can help with: * Deploying backend (FastAPI / Node.js) to Render or Railway * Connecting MongoDB Atlas securely with environment variables * Fixing CORS, JWT auth, and API routing issues * Updating Vercel frontend environment variables (REACT_APP_BACKEND_URL) * Configuring Razorpay webhooks + Google OAuth redirect URIs * Setting up SendGrid email service integration * End-to-end testing of full checkout flow (auth → cart → payment → order → email) Approach: * First audit GitHub backend + frontend configuration * Deploy backend to production-grade host (Render/Railway) * Fix API connectivity + environment variable mismatches * Reconfigure OAuth + payment webhook endpoints * Full flow testing across signup/login/payment/order system * Final stabilization + redeploy frontend on Vercel Thanks

@abhishek060

Hi I can fix your backend deployment and get the full checkout flow working end-to-end (login → cart → payment → order → email). From your description, this is a classic deployment architecture issue: Frontend is correctly hosted on Vercel, but the backend is not deployed or properly connected, so all API calls are failing. What I will fix: • Deploy backend (FastAPI / Node) on Render or Railway • Connect MongoDB Atlas and verify collections • Configure all environment variables (JWT, Razorpay, OAuth, SendGrid, CORS) • Fix REACT_APP_BACKEND_URL and redeploy frontend on Vercel • Update Google OAuth redirect URLs • Configure Razorpay webhook correctly • End-to-end testing of full purchase flow I’ve worked on similar production issues where frontend was live but backend routing + env configuration was broken, especially with Vercel + Render/Railway setups. Timeline: 24–48 hours as required Quick question: Is your backend currently FastAPI, Node.js, or mixed both in different services? Lets discuss on chat , I can share more details. Regards, Abhishek

@srdank001

Hello, I read your requirements carefully and I am confident I can fix your backend urgently. I have extensive experience deploying full-stack apps with React, FastAPI/Node, and MongoDB, including payment and OAuth integrations. I can deploy your backend to Render or Railway, configure all environment variables, update your frontend URLs, and test the full user flow end-to-end. A similar project I completed involved connecting a React frontend to a FastAPI backend with Stripe payments and email notifications, deployed live in 24 hours. I am ready to start immediately and ensure your site is fully functional within 48 hours. Best regards.

@usamaansari786

Hi, I reviewed your project and I understand the issue clearly your frontend is deployed on Vercel but the backend was never properly deployed, so all API calls (login, payments, orders) are failing due to incorrect environment configuration. This is a backend deployment + integration fix, not a rebuild, and I can resolve it quickly. Here’s how I would approach your project: • Deploy backend from GitHub on Render or Railway • Connect MongoDB Atlas and verify database links • Configure all environment variables (JWT, Razorpay, OAuth, SendGrid, CORS) • Fix REACT_APP_BACKEND_URL and redeploy frontend on Vercel • Update Google OAuth redirect URLs + Razorpay webhooks • Test full flow: login cart payment order mail confirmation My focus is to make sure your entire system works end-to-end without broken APIs or misconfigurations. Before starting, just confirm: Do you prefer Render or Railway for backend hosting? Looking forward to working with you. Best regards, Usama K

@souravsasmal14

Hello, I can urgently fix your backend deployment by hosting it on Render/Railway, connecting MongoDB Atlas, correcting environment variables, and updating your Vercel frontend API URL. I will also configure OAuth, Razorpay webhooks, CORS, and test the full flow (login, orders, payment) to restore your e-commerce site within 24–48 hours without changing your existing code.

@ahtishamulhaque1

At Solves Inn, we pride ourselves in delivering exactly the kind of high-performance, reliable and business-driven systems your e-commerce site desperately needs right now. With over 10 years of collective experience, we have handled varied and challenging full-stack projects, just like yours. I personally guarantee you that we won't deliver a 'task' or 'ask', instead what you will get is a real solution with scalability at its core, just as your project requires. With our proficient knowledge on using React.js, Node.js, Python, FastAPI to work with MongoDB and our extensive experience deploying Mongo DB Atlas and integrating it with JWT authentication, OAuth and payment gateways like Razorpay,you can be confident that your website will be backed by robust functionalities again. As experts in DevOPs we are totally comfortable with Vercel, Render & Railway which means seamless deployment and continuous integration of backend code is something we do effortlessly. Wise choice of tools for effective backend deployment can shape the destiny of an application. Scrap away any thoughts about my response being generic as this is as real as it gets. Genuine approach towards solving business problems efficiently is why our clients choose us over our competition. Early birds get the worm. The adage stands true here; reach out to me today to discuss how we can start yielding productive results within your urgent timeline.

@ydvhitender

Hi, I can start immediately and handle this within your timeline. This looks like a deployment/configuration issue rather than a rebuild, and I’ve handled similar urgent production fixes for full-stack apps. I can get the backend properly deployed, reconnect the required services, fix the broken login/payment/order flow, and fully test everything end to end before handoff. Your site needs both because the frontend and backend serve different roles, and right now the backend side isn’t set up correctly. I work with React, Node/FastAPI, MongoDB, payment integrations, and live deployment troubleshooting, so this is well within scope. I’m available to start today and focus on getting this stable fast. Let’s connect and get it resolved properly.

@shailender18

Hi, I saw your urgent request for FastAPI backend repairs and am ready to dive in right now. As a senior developer at ARSS Technologies, I specialize in high-performance Python backends and have successfully stabilized e-commerce systems for brands like Distacart and The Village Store. ​ My Immediate Action Plan: ​Rapid Triage: Analyze Uvicorn/Gunicorn logs and Pydantic models to isolate the failure. ​Fix & Secure: Repair database bottlenecks (SQLAlchemy/Tortoise) and restore broken API/Payment integrations. ​Validation: Stress-test the checkout flow to ensure zero revenue loss. ​ I understand that every minute of downtime is a loss for your business. I am available to start the diagnostic immediately. ​Can you share the error logs or a brief description of the current crash? ​ Best regards, Shailender

@Tarang78

Hi! I’m Tarang, I have over 12 years of experience and have previously completed a Urgent Repair of E-commerce Site Backend project. I am really interested in this job. I’m ready to start immediately and can deliver high-quality work within your timeline. Please join the chat so we can discuss and start immediately.

@raykah

REACT_APP_BACKEND_URL pointing at the frontend domain is the e-commerce version of your phone calling itself — nothing ever picks up. You need both Vercel and Render because Vercel serves your static React build on a CDN (blazing fast, but can't keep a Python process alive for Razorpay webhooks or Mongo queries), while Render/Railway runs the backend as a real always-on service. Each does what the other can't. Shipped this exact stack twice — last one was a D2C store on Vercel + Render with Razorpay + Google OAuth, end-to-end working in under a day once env vars and CORS were sorted. The silent killer is the OAuth redirect URIs plus Razorpay webhook URL — both need updating post-deploy or payments fail without throwing visible errors. GitHub: [your-github-url] · Live sample: [your-deployed-project-url] · Can start within 2h of milestone funding, ship in 24–36h · Quote: $3,800 fixed, 50/50 via Freelancer as you outlined. Is the backend FastAPI or Node — you mention both, want to confirm which is actually in the repo? And is Mongo Atlas already open to 0.0.0.0/0 or should I whitelist Render's egress IPs?