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I need a web application that lets customers walk up to any of my connected vending machines, scan a QR code or enter a short URL, and immediately: • upload the documents they want to print. • select the specifications they want print in. • pay through cards, Apple Pay, Google Pay or any other common gateway, and • receive a digital receipt plus a running purchase history they can revisit later. On my side, the same backend should update stock levels the moment a sale goes through, trigger automated restocking alerts whenever an item hits a threshold I set, and compile clear inventory reports I can export for accounting. Real-time accuracy is critical because I rely on it to plan service routes. A lightweight admin dashboard is enough—no bloated ERP features—but the code must be clean, well-documented, and easy for another developer to extend later (for example, if I decide to add machine-health diagnostics down the road). Please build the app as a modern SPA (React, Vue, or similar) with a REST or GraphQL API, secure payment integration, and WebSocket or similar tech for instant stock updates. Once complete I’ll test it at one pilot machine; after sign-off I’ll roll it out fleet-wide.
Project ID: 40661525
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94 freelancers are bidding on average ₹26,073 INR for this job

As an experienced software developer, my core proficiency lies in web and mobile app development, notably using JavaScript, HTML, React, MERN Stack, and MEAN Stack. Additionally, I have extensive expertise in managing databases such as MySQL and MongoDB. This array of applicable technical skills gives me a firm foundation on which to build your vending machine purchase web app. One of your pivotal requirements is the ability for your customers to pay through various gateways securely. My knowledge includes handling REST API and Payment Gateway Integration - a perfect fit for this task. Furthermore, I'm well-versed with technologies that facilitate near-instantaneous stock updates – a necessity for keeping your machines fully-stocked and notifying you when restocking is necessary. What sets me apart is my commitment to clean code, performance optimization, and business-driven solutions. I understand the importance of real-time accuracy in your operations. With this project, we can streamline your inventory management system and provide you with detailed reports that would simplify finances for accounting purposes.
₹35,000 INR in 5 days
8.0
8.0

As a seasoned full-stack developer and web app expert, I deeply understand the complexity of your vending machine purchase app project. With more than a decade of industry expertise, I bring deep knowledge in modern web technologies like Laravel, PHP, Node.js; knowhow required to build a scalable and robust SPA (React or Vue); payment gateway integrations for secure card, Apple Pay, Google Pay transactions; WebSocket implementation for real-time stock updates plus REST/GraphQL API development for seamless all-round functionality. I've worked on similar near-realtime applications which require accuracy and speed, developing CRMs, SaaS solutions and e-commerce systems. This gives me an edge in creating a web app that's lightweight yet powerful enough to manage your inventory expeditiously and update stock levels accurately across all machines while notifying you when any item hits your predefined restocking threshold. Not only do I deliver clean and easily-extendable code but I also provide long-term support beyond project completion- meaning after signing off the one-pilot test we will be able to roll it out fleet-wide without hitches. Let me assure you: selecting me means opting for quality, reliability, on-time delivery and unhindered support at all stages of our collaboration. Looking forward to building something amazing with you!
₹37,000 INR in 7 days
7.0
7.0

Hello, I have 10 years of experience developing scalable web applications using React.js, Node.js, PostgreSQL, REST APIs, secure payment integrations, and cloud deployment. I can build your vending-machine printing platform with QR/short-URL access, document uploads, print specification selection, card and digital-wallet payments, receipts, and customer purchase history. The backend will synchronize transactions with inventory immediately, trigger configurable restocking alerts, and generate exportable reports through a focused admin dashboard. The pilot-machine rollout can be structured carefully so the system is validated before fleet-wide deployment, while keeping the code extensible for future machine-health monitoring. I would be glad to discuss your machine communication method, payment provider, and reporting requirements. Best regards
₹25,000 INR in 7 days
7.1
7.1

Hello, We would be glad to support you with this project. Protovo Solutions LLP provides reliable virtual assistance, data entry, research, and remote business support services to clients worldwide. Our team can handle both short-term assignments and ongoing support with accuracy, confidentiality, and clear communication. Our services include: • Data entry, data cleaning, and data formatting • Web research and information collection • Excel, Google Sheets, and document management • CRM data entry and database updates • Lead generation and contact-list building • Email and calendar management • Product listing and e-commerce support • Social media and content assistance • Customer and administrative support • Bookkeeping and accounting assistance • PDF conversion, copy-paste, and file organization • AI-assisted research and repetitive task automation We follow clear instructions carefully, provide regular progress updates, and review the completed work before submission. Our team can also adapt to your preferred tools, processes, working hours, and reporting format. Protovo Solutions LLP has been serving global clients since 2016 and has earned more than 100 client reviews on Freelancer. Please connect with us through chat to discuss the work. We can review your requirements and start with a small task or milestone before moving to the complete assignment. Kind regards, Protovo Solutions LLP
₹37,500 INR in 7 days
6.9
6.9

Your real-time stock sync will fail if you rely on polling instead of WebSockets—every sale creates a race condition where two customers can buy the last item simultaneously. This causes chargebacks and angry support tickets. Quick questions - are you planning to handle offline transactions when the machine loses WiFi? And what's your target response time for the payment confirmation screen? Here is the architectural approach: - PAYMENT GATEWAY INTEGRATION: Build idempotent transaction handlers with Stripe/Square webhooks so duplicate charges never occur even during network hiccups. - GRAPHQL + WEBSOCKET: Implement subscription-based inventory updates that push stock changes to all connected clients within 200ms of a sale completing. - VUE.JS SPA: Design a mobile-first PWA with offline-capable QR scanning and local receipt caching until connectivity restores. I've built similar IoT-connected payment systems for 2 retail chains processing 10K+ daily transactions. Let's schedule a 20-minute call to map your machine API specs before I draft the technical blueprint.
₹22,500 INR in 7 days
6.5
6.5

Hi, I’d be interested in developing your Vending Machine Purchase Web App. I can build a clean, responsive, and user-friendly solution that makes the purchasing process simple and reliable. I can help with: * Vending machine product browsing and selection * Product availability and pricing * Shopping cart and checkout flow * Secure online payment integration * Order confirmation and transaction tracking * Responsive design for mobile, tablet, and desktop * Admin panel for managing products, prices, inventory, and orders * API/backend integration with vending machine systems if required * Error handling, validation, and security * Testing and deployment I’ll focus on creating a smooth user experience while keeping the application scalable and easy to maintain. I’m available to start immediately and would be happy to discuss your existing requirements, preferred technology stack, and vending machine/payment integrations. Best regards, DB Vertex Technologies
₹25,000 INR in 10 days
6.7
6.7

Real-time stock accuracy is the piece most builds get wrong: the payment webhook has to be the source of truth, not the client, otherwise a failed card still decrements inventory. I'll build a React SPA with a Node/REST backend, Stripe for cards plus Apple/Google Pay, and WebSockets pushing stock changes to your dashboard the moment a webhook confirms payment. 1) Which print specs matter: paper size, colour, duplex, page count? 2) How many machines in the pilot-to-fleet rollout? Cheers Shayan
₹21,250 INR in 3 days
5.6
5.6

The real challenge here isn't the print-and-pay flow, it's keeping stock counts trustworthy the instant a transaction closes, since your service routes depend on that number being accurate immediately, not eventually. I'd structure this around a stock event that fires the moment payment confirms, pushed over WebSocket so the admin dashboard and restock alerts update in the same second as the sale, not on a polling delay. On the customer side, the QR or short-URL landing handles upload, spec selection (paper size, color, binding, whatever set you define), and payment through a processor like Stripe that covers Apple Pay and Google Pay under one integration, then generates the receipt and logs it to a persistent history tied to that customer. On your end I'd keep the dashboard narrow on purpose, stock levels, threshold alerts, exportable reports for accounting, and structure the codebase so machine-health diagnostics can be added later without touching the core logic. Starting with one pilot machine before fleet rollout is the right call, it surfaces payment edge cases and upload failures while the blast radius is small. Which payment processor do you already have a merchant account with, or is that still open?
₹12,500 INR in 7 days
5.8
5.8

Hello, I’d be happy to build your vending machine printing web application. I have 5+ years of experience in web applications, React, APIs, payment integrations, and real-time systems. I will provide: • QR/short-URL customer flow for document upload and print selection • Secure checkout supporting cards, Apple Pay, Google Pay, and suitable gateways • Digital receipts and customer purchase history • Real-time inventory updates and configurable restocking alerts • Lightweight admin dashboard with CSV/PDF inventory reports • React-based SPA with REST/GraphQL API • WebSocket-based real-time stock synchronization • Secure, scalable, well-documented code ready for future machine diagnostics I’ll build the system with a pilot machine in mind, thoroughly test the complete purchase and inventory flow, and prepare it for fleet-wide rollout after approval. I’d be glad to discuss the machine integration, payment gateway, and printing requirements and provide a clear timeline. Warm Regards, Monica Bhatia
₹15,000 INR in 3 days
5.0
5.0

With over 7 years of experience in web and mobile app development, my team has amassed the skills necessary to create the efficient and user-friendly vending machine purchase platform you need. We are proficient in various programming languages like PHP, Android, and MySQL, which will enable us to build a secure payment API and rapidly update stock levels effortlessly. Our dexterity with payment gateway integration will ensure your customers have multiple easy-to-use payment options while adhering to strong transaction security. Furthermore, I understand that real-time accuracy is vital in the vending machine business. Therefore, I will carefully design a system with WebSocket or similar technology for quick stock updates, automated restocking alerts, and inventory reports you can easily export for accounting purposes. Lastly, my commitment to long-term support makes me an excellent fit for your project. My team and I don't just complete projects but stay on-hand to assist you as your business needs evolve - just like if you decide to add machine-health diagnostics in the future. Contact me now so we can discuss further this exciting opportunity to turn your vision into a competitive digital product!
₹25,000 INR in 7 days
4.9
4.9

Hello, I can build your modern, scalable vending-machine printing platform with a fast SPA and secure backend/API. I’ll implement QR/short-URL access, document upload, print specification selection, card/Apple Pay/Google Pay payments, digital receipts, and customer purchase history. The admin side will include real-time stock updates, configurable low-stock alerts, inventory reports/export, and WebSocket-based synchronization. Recommended stack: React + Node.js/NestJS + PostgreSQL + Redis/WebSockets, with secure cloud storage and payment integration. Timeline: 4–6 weeks, with a pilot-machine milestone first, followed by fleet-wide deployment and complete source/documentation handover.
₹25,000 INR in 7 days
5.7
5.7

With my team's extensive background in Full-Stack Development, we're the ideal candidates to bring your cutting-edge Vending Machine Purchase Web App to life. A modern SPA powered by React / Vue and supported by an efficient REST or GraphQL API sounds right up our alley. We'll ensure that the codebase is robust, elegant, well-documented, and easily extensible for smooth future enhancements. Payment security is paramount in a web application of this nature, and it just so happens that I possess in-depth knowledge and experience with integrating various payment gateways. Rest assured, your customers will have a seamless experience paying through cards, Apple Pay, Google Pay or any other methods you prefer. The real-time aspect of this project aligns perfectly with my expertise in MySQL, REST APIs, and WebSocket technology - allowing us to deliver instant stock updates and maintain accurate inventory reports. Furthermore, I understand the significance of delivering on time and maintaining effective communication throughout, two aspects that I hold crucially important. Let's team up to create a scalable product that not only meets your needs but exceeds them! Together let's make this project a success!
₹25,000 INR in 7 days
4.6
4.6

Hello, We can build this as a modern, scalable vending-machine printing platform with a lightweight admin system and real-time inventory management. => Customer SPA: React-based responsive interface => QR/Short URL: Machine-specific access and identification => Document Upload: Secure upload + print specification selection => Payments: Cards, Apple Pay, Google Pay and suitable gateway => Receipts & History: Digital receipts and customer purchase history => Real-time Inventory: Automatic stock updates after successful sales => Alerts: Configurable low-stock/restocking notifications => Admin Dashboard: Inventory, sales and exportable reports => API: Node.js/NestJS REST API + PostgreSQL => Real-time Updates: WebSockets for instant machine/inventory status We’ll keep the architecture modular so future features such as machine-health monitoring and diagnostics can be added without rebuilding the system. We can develop it milestone-wise: UI/UX → Backend/API → Payment & machine integration → Admin dashboard → Testing → Pilot deployment. We’d be happy to discuss the vending-machine communication/API requirements and provide a realistic timeline and quotation for the pilot build. Best regards, Future Profilez
₹65,000 INR in 7 days
4.1
4.1

As a seasoned programmer with significant experience in PHP, MySQL and a vast array of other web technologies, I possess the necessary skills to create an efficient and reliable web app tailored specifically to the needs of your vending machine business. My proficiency in creating data-focused applications and deep knowledge of APIs will enable me to effectively build a secure payment integration system, real-time stock updates, and automated restocking alerts for you. Your backend requirements such as maintaining inventory levels, compiling reports, and generating digital receipts all align perfectly with my skill set. Furthermore, my experience using version control systems like Git guarantees clean and well-documented codebase. This important as it allows for easy expansion when required, such as future plans like adding diagnostic features to monitor machine-health. Having worked on projects ranging from small-scale websites for startups to large-scale enterprise applications, I have learned the value of communication and collaboration alongside technical expertise bring to building successful apps. I am excited at the potential of partnering with you to revolutionize your vending machine business through a modern, responsive and high-performing web app.
₹12,500 INR in 7 days
4.0
4.0

Hi, I’ve carefully gone through your requirements and can build this vending-machine printing platform with a fast SPA, secure payment flow, document upload, print selection, digital receipts, purchase history, real-time inventory updates, restocking alerts, and a simple admin dashboard. I’ll keep the architecture clean, modular, secure, and scalable for your future machine-health features. A couple of questions: How will the vending machines communicate their stock/sale data with the backend—do they already have an API? Also, do you have a preferred payment gateway and document-printing hardware/API? Let’s discuss the workflow in chat, review the pilot-machine setup, and proceed with the next steps. Best Regards, Arshiya
₹25,000 INR in 7 days
4.0
4.0

You need a vending workflow that stays simple for customers while keeping payments, print jobs, stock counts, and machine-level inventory synchronized in real time. I’ve built production systems at Poundit using Vue/Node, payment workflows, APIs, and transactional data handling, which maps closely to this kind of customer-to-backoffice flow. I’d build the customer side as a lightweight SPA for QR access, document upload, print options, checkout, receipts, and purchase history, then connect it to a REST API with secure payment handling and WebSocket updates for live inventory changes. The admin side can stay focused on stock thresholds, restock alerts, machine-level reporting, and exports without unnecessary ERP complexity. I’d also separate print-job, payment, and inventory services cleanly so machine diagnostics can be added later without restructuring the app. Do your vending machines already expose an API or local controller interface for receiving print jobs and reporting stock?
₹15,000 INR in 3 days
3.8
3.8

As a Full Stack Developer with over five years of experience, I possess the needed skillset for your Vending Machine Purchase Web App project. My proficiency in Android, MySQL, Payment Gateway Integration, PHP, REST API, Vue.js and Web Development make me an apt candidate to create a clean and efficient app that allows your customers to seamlessly buy items from your vending machines and process all necessary transactions. Moreover, my expertise in building custom web applications and payment gateways aligns precisely with the task at hand. I have also worked on projects requiring real-time accuracy and stock management, both of which are vital aspects of your project. I'll use cutting-edge technologies like Reac+t or Vue.js to develop a SPA (Single Page Application) with a robust REST or GraphQL API for secure and swift communication between the frontend and backend. My commitment is to not only deliver a polished, functional product but to also ensure its smooth adaptability in the future. With me leading the project, you can trust that the code will be clean, documented meticulously, and easy for any other developer to work on, fulfilling your requirement of extendability down the line. Let's get started on transforming this vision into an innovative reality!
₹15,000 INR in 7 days
3.9
3.9

Hi, I can build your vending-machine purchase web app as a modern SPA with a scalable backend, secure payments and real-time inventory synchronization. I have 5+ years of full-stack experience with React, PHP/Laravel, Node.js, REST APIs, databases, payment gateways and real-time systems. I can implement: • QR code/short URL machine identification • Document upload and print specification selection • Secure card, Apple Pay and Google Pay payment integration • Digital receipts and customer purchase history • Real-time stock updates after successful transactions • Configurable low-stock thresholds and automated alerts • Inventory reports with export functionality • Lightweight admin dashboard for machines, products and stock • REST/GraphQL API with WebSocket-based real-time updates • Secure file handling, authentication and payment webhooks • Clean, documented and extensible code I’ll design the system so each machine can be uniquely identified and the backend can accurately track inventory across the fleet, while keeping the architecture ready for future machine-health integrations. I can start with the pilot-machine implementation, thoroughly test the complete purchase/inventory flow, then prepare it for fleet-wide rollout. I’m available immediately and can discuss your vending machine API/hardware integration, payment provider and preferred stack before starting. Best regards, Himanshu
₹20,000 INR in 3 days
3.5
3.5

Dear Client, I have carefully reviewed your project requirements for the development of a Vending Machine Purchase Web App. With our expertise in PHP, Android, Software Architecture, MySQL, and Web Development, we are well-equipped to deliver a secure, high-performing, and user-friendly solution that exceeds your expectations. Our team of 20+ years experienced experts, including UI/UX designers, database architects, software engineers, and project managers, will ensure that your project is handled with utmost professionalism and efficiency. We have successfully completed projects in a similar domain, giving us a deep understanding of your needs and requirements. Our proposed solution involves using modern technologies such as React or Vue for the frontend, a secure payment integration, and WebSocket for instant stock updates. The development process will be transparent, with regular communication and post-launch support guaranteed. To learn more about our work, please visit our portfolio at https://www.freelancer.com/u/rajeshrolen Let's discuss your project further and create a solution that drives real results for your business. Sincerely, Rajesh Rolen
₹12,500 INR in 7 days
3.1
3.1

Hello! I can build the React SPA with secure payments, QR access, document uploads, real-time stock updates, restocking alerts and an extensible admin dashboard. Let’s discuss details here.
₹25,000 INR in 7 days
2.8
2.8

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