Amazon Seller API Node.js Integration

@mehboobafridi786

===== YOUR SEARCH ENDS HERE ====== Hello, This is exactly the type of SP-API integration I build regularly. I will connect your Node.js application directly with Amazon’s latest Selling Partner API (SP-API) using proper LWA (Login With Amazon) OAuth + IAM role authentication, keeping the solution lightweight and modular. For your two workflows, these are the required SP-API endpoints: Inventory Sync • Listings Items API – patchListingsItem (update quantity/fulfillment data) • Feeds API – createFeedDocument + createFeed (bulk inventory updates if needed) • Catalog Items API – getCatalogItem (validation/mapping if required) Order Processing • Orders API – getOrders, getOrder, getOrderItems • Orders API – confirmShipment (tracking + carrier updates) • Orders API – updateShipmentStatus (if partial flows apply) Optional (FBA sellers) • FBA Inventory API – getInventorySummaries What I’ll deliver: • Clean Node.js service layer wrapping these endpoints • Real-time or interval-based inventory push logic • Order polling + webhook-ready architecture • Proper error handling, logging, retries & rate-limit handling • Clear setup documentation + environment config guide Timeline: 10-12 days Estimated Cost: $750 fixed Project is complete once stock updates reflect predictably on Amazon and all new orders flow into your system with full lifecycle updates verified in production. Ready to start immediately. — Mehboob Khan Afridi

@vishal1145

Your inventory sync will fail silently if you don't implement Amazon's throttling rules - SP-API enforces strict rate limits per endpoint, and exceeding them locks your account for 24 hours. I've seen this break order processing for sellers during Black Friday because they didn't queue API calls properly. Before architecting the solution, I need clarity on two things: What's your current order volume per hour during peak periods, and are you using MongoDB or CouchDB for your internal order model? This determines whether we need a Redis queue or if Node's event loop can handle the sync intervals without blocking. Here's the architectural approach: - NODE.JS + SP-API SDK: Implement OAuth 2.0 token refresh with automatic retry logic and store credentials in environment variables, not hardcoded configs. - INVENTORY SYNC: Build a scheduled job using node-cron that batches inventory updates every 15 minutes, respects Amazon's 10 requests per second limit, and logs discrepancies to MongoDB for manual review. - ORDER PROCESSING: Set up webhook listeners for new orders, map Amazon's JSON structure to your internal schema, and trigger confirmation/shipment workflows with idempotency keys to prevent duplicate submissions. - ERROR HANDLING: Implement exponential backoff for 429 rate limit errors and dead-letter queues for failed API calls so you don't lose order data during outages. - NOSQL INTEGRATION: Store raw SP-API responses in MongoDB with timestamps for audit trails and build indexes on order IDs for sub-50ms lookup times. I've integrated SP-API for 4 e-commerce platforms handling 500+ orders daily. The biggest failure point is always throttling - most developers ignore Amazon's quota system until production breaks. Let's schedule a 15-minute call to walk through your current data flow and confirm the sync intervals won't trigger rate limits.

@usamae

Hey, I can do this in Node.js exactly as scoped. I have worked with SP-API integrations for catalog, inventory sync, and order flow automation. I can wire LWA auth properly, build stable service modules/endpoints, and add retry plus rate-limit handling so it keeps running without random breaks. I can also structure it so inventory updates and order acknowledgements are traceable with logs/webhooks, which makes ops much easier later. If you want, I can start by shipping inventory sync first as milestone 1. - Usama

@shubomb

Greetings of the day, I can integrate Amazon SP-API into your existing Node.js application using LWA (OAuth) authentication, secure token refresh handling and modular service layers. I’ll implement clean inventory sync logic to push stock updates to Amazon at controlled intervals and ensure accurate SKU mapping between your system and Amazon listings. For orders, I’ll build a structured workflow to fetch new orders, map them to your internal model, and automate acknowledgments, shipping confirmations and tracking updates with proper error handling and logging. The solution will be lightweight, well-documented and designed so analytics or additional SP-API endpoints can be added later without refactoring.

@santoshkumars17

Building seamless and efficient integrations is my bread and butter. With over 5 years of experience in API development, JavaScript, and Node.js, I'm confident in my capacity to deliver a robust solution for your Amazon Seller API integration. I've previously developed e-commerce platforms and custom solutions, which include order processing and inventory management features that closely relate to the needs of this project. What sets me apart is my holistic approach to development. I don't just focus on coding; I prioritize clean, optimized, and maintainable code that aligns with long-term goals. My expertise in API integration combined with my knack for performance optimization will ensure your application runs smoothly even as your business grows. Lastly, you expressed the need for clear documentation and brief setup instructions to maintain or extend the solution in-house- something I'm well-versed in providing. With regular communication and on-time deliveries, I aim to go above and beyond client expectations. Let's discuss your project further—your vision plus my skills equals an amazing solution!

@mrresearcher99

Hi, I can integrate the Amazon Selling Partner API into your Node.js application and make inventory sync and order automation fully reliable. I have 5+ years of full-stack experience with MERN/MEAN and strong hands-on work with REST APIs, OAuth/LWA authentication, and production integrations. My approach: Implement secure SP-API auth (LWA + AWS signing) Build modular services to push stock updates from your system to Amazon at predictable intervals Fetch new Amazon orders, map to your internal schema, and handle acknowledgements, shipment updates, and tracking Add robust error handling, retries, and structured logging Keep the code lightweight, clean, and easily extendable You’ll receive well-documented endpoints/functions plus a concise setup README so your team can maintain it confidently. My focus is production stability and minimal intrusion into your existing codebase. I’ve delivered similar third-party API automations and can share examples once we connect. Available to start immediately. Best, Bhargav

@mayankinnovative

Hi, As per my understanding: You have a custom Node.js application and need integration with Amazon’s Selling Partner (SP-API) focused strictly on two workflows: real-time inventory synchronization and automated order lifecycle processing. The system must authenticate via OAuth/LWA, push accurate stock updates to Amazon, fetch new orders, map them to your internal model, and send confirmations, shipment updates, and tracking details. The solution should be modular, lightweight, production-ready, and fully documented. Implementation approach: I will integrate SP-API using secure LWA authentication with token refresh handling and AWS signature v4 signing. A service layer will abstract Amazon endpoints for inventory feeds and Orders API. Inventory updates will trigger via event-based or scheduled sync with retry logic and logging. Order ingestion will poll or subscribe (if applicable), normalize data to your schema, and handle acknowledgements, shipping confirmations, and error states. Structured logging, validation, and rate-limit management will be implemented. Code will be modular, documented, and ready for future extension. A few quick questions: Are you using FBA, FBM, or both? Expected order volume per day? Preferred sync interval for inventory? Is AWS IAM already configured?

@Ussama91

I will connect the Selling Partner API to your Node.js application, handling authentication with OAuth/LWA, and provide functions to sync inventory levels and automate order processing, including pulling inventory data, pushing stock updates, fetching new orders, and sending confirmations and updates, with clear documentation and setup instructions. Waiting for your response in chat! Best Regards.

@WCTech

Hello, I’m a Node.js & Amazon SP-API Integration Specialist with 7+ years of experience building secure eCommerce integrations, inventory sync systems, and order automation workflows. I specialize in OAuth/LWA authentication, scalable API design, and reliable data sync pipelines. Your Requirement You need your Node.js application to integrate with Amazon Selling Partner API to sync inventory and automate order processing—from order fetch to confirmation, shipment updates, and tracking—while keeping the system lightweight and modular. What I Will Deliver Secure SP-API integration with LWA/OAuth authentication Inventory sync module to push real-time stock updates to Amazon Order ingestion system to fetch new orders and map to your internal model Automated order lifecycle handling (acknowledgment, shipping, tracking updates) Clean Node.js service functions/endpoints for easy reuse and expansion Error handling, retry logic, and logging for production reliability I can assure you 100 % satisfied job. If you have some questions, you can contact me so we can discuss in detail. Let's have a QUICK CHAT on the details to proceed further with this project. Thank’s, neha~~ Node.js & Amazon SP-API Integration Specialist

@arshig8

Hello, With my expertise in API Development, JavaScript, Node.js, and Web Development, I am confident that I can effectively integrate the Amazon Seller API into your Node.js application. I have a proven track record of creating robust and scalable solutions tailored to clients' unique needs, which aligns perfectly with your project requirements. The success of this project hinges on seamless communication between your app and Amazon, and I assure you that I can deliver exactly that. One aspect that sets me apart is my ability to strategize and anticipate future needs. Although your current project scope does not include sales analytics, I understand the potential for expansion in the future. Therefore, I will ensure that the solution I provide is not only lightweight and modular but also flexible enough to accommodate any additions or changes down the line. In addition to my technical prowess, clear documentation is one of my strong suits. Post-project, you will receive comprehensive documentation and setup instructions enabling you to maintain or extend the code with ease. Above all, I am committed to delivering a high-quality solution that reflects real-time inventory data on Amazon within predictable intervals while also providing you full lifecycle status updates for new Amazon orders in your app. Let me be your partner in this venture; together we will make sure your business thrives on Amazon! Thanks, Arshiya

@yuanzhi5

Our technical approach ensures a robust Node.js integration with the Amazon Seller API, focusing on secure authentication, rate limiting, and reliable data synchronization. This solution will deliver a production-ready system with efficient token management and error handling, based on proven experience optimizing high-concurrency API workflows. The implementation plan includes end-to-end development, testing, and documentation. The total budget is 33000.0 INR. Which specific SP-API operations—such as orders, reports, or inventory—and what daily data volumes should we prioritize?

@DigitalNightOwl8

Hello there , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in JavaScript, Web Development, NoSQL Couch & Mongo, OAuth, Amazon Web Services, API Development, Software Development and Node.js. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Eager to hear your feedback

@shibbuquadir

As a highly skilled and experienced developer in API Development, JavaScript, Node.js, and Software Development, I believe I am the perfect fit for your project. My company, Paper Perfect, is not only committed to delivering exceptional results on time and within budget but also to creating robust and scalable solutions that align with your unique business needs. Having worked extensively with Amazon's Seller API and OAuth/LWA authentication in previous projects, I am confident in my ability to seamlessly integrate your custom-built application into the newest Selling Partner (Seller) API. I have a deep understanding of the specific workflows you mentioned - inventory data synchronization and automated order processing - and have successfully implemented similar functionalities before. Moreover, I understand your goal for a lightweight and modular solution that can be easily maintained or extended even without my presence. With this in mind, not only will I provide clear documentation and brief setup instructions, but my code will also focus on high readability and reusability. Choose me for this project, and you'll get a reliable solution that ensures accurate Amazon inventory updates and full lifecycle tracking of all new orders with exhaustive error handling and logging verified in production.

@Hemantt841

I understand that you need a seamless integration of the Amazon Selling Partner API with your custom Node.js application, focusing on synchronizing inventory levels and automating order processing. The goal is to ensure that inventory changes reflect on Amazon promptly and that new orders are

@pedrofrancab

I can integrate the Amazon Selling Partner API (SP-API) into your existing Node.js application to enable reliable, real-time inventory synchronization and fully automated order processing. I have experience working with OAuth/LWA authentication, secure token handling, and building modular service layers that connect external APIs to internal systems. I will implement clean, well-structured functions or endpoints that push accurate inventory updates to Amazon, retrieve new orders, map them to your internal data model, and send confirmations, shipping updates, and tracking information in full compliance with SP-API requirements. The implementation will be lightweight, maintainable, and designed for stability in production, with proper error handling, logging, and retry mechanisms to ensure consistent synchronization. I will also provide clear documentation and setup instructions so you can easily operate, maintain, or extend the integration in the future. My focus will be on creating a robust and modular solution that fits seamlessly into your Node.js codebase while ensuring inventory and order lifecycle events remain fully synchronized between your system and Amazon.

@iamthepakSharma

I’ve reviewed your requirement and this is my understanding: you have a custom Node.js application and need it to integrate with Amazon’s Selling Partner (SP) API to: Keep your inventory in sync between your system and Amazon Automate order processing, from fetching new Amazon orders to updating order status, shipping, and tracking The solution must be lightweight, modular, and maintainable, without unnecessary analytics functionality. I have 8+ years of experience building Node.js integrations with e-commerce APIs, including Amazon SP-API, Shopify, and WooCommerce. I’ve implemented OAuth/LWA authentication, order processing, inventory sync, and robust logging/error handling for production environments. I’m available to start immediately and can deliver a production-ready integration within 2–3 weeks, including full testing, logging, and documentation. Best Regards, Deepak

@SamreenCoders

Hello, I can integrate the Amazon Selling Partner API (SP-API) into your Node.js application to automate inventory syncing and order processing with a clean, modular, and production-ready implementation. I have strong experience working with API integrations, OAuth/LWA authentication flows, webhook/event handling, and marketplace automation systems, so I can ensure reliable communication between your system and Amazon. What I’ll implement: Secure SP-API authentication (OAuth + LWA tokens) Inventory sync module to push accurate stock updates to Amazon Order sync module to fetch new orders and map them to your internal schema Automated lifecycle updates (confirmation, shipment, tracking) Error handling, logging, retry logic, and status validation Lightweight modular architecture for future feature expansion Clear documentation + setup instructions for in-house maintenance The integration will be optimized for stability and predictable sync intervals so inventory and orders remain fully synchronized in production. I’m ready to start immediately and can review your current Node.js structure to plug the integration cleanly without disrupting existing logic. @SamreenCoders Warm regards

@rishus098

I’m excited about the opportunity to develop your website and application. With a strong background in modern web and mobile technologies, I specialize in building high-performance, user-friendly, and scalable digital solutions tailored to business goals. ? Why Choose Me? ✅ Custom Design & Development Modern, responsive, and visually engaging UI/UX tailored specifically to your brand. ✅ Full-Stack Expertise From frontend to backend, API integrations, and database architecture — complete end-to-end development. ✅ Mobile-Responsive & Cross-Platform Apps Web apps, Android, and iOS applications built for performance and scalability. ✅ SEO & Performance Optimized Fast loading speed, optimized structure, and search engine friendly development. ✅ Secure & Scalable Architecture Built with best practices to ensure data security and future scalability.

@approzo

Leveraging a robust skillset in JavaScript and Web Development, I have successfully integrated several platforms and API's that processes and communicate data in real-time. My track record of work includes multiple seller API integration projects that resonate with yours. For this project, I am well-versed in the mainstay of communication between Node.js applications and API endpoints. This makes me an ideal fit to connect and authenticate your custom-built application flawlessly with Amazon Selling Partner API using OAuth/LWA. With a keen focus on a clean, lightweight, and modular approach to development, I guarantee that my solution for you will be scalable enough to future-proof any additional requirements you may have as your business expands. My previous clients often commend my clear documentation style which allows them to maintain or extend my work without hassle-post deployment. Employing a strong understanding of business goals, user experience, and system architecture, I will not only ensure that inventory changes reflect reliably on Amazon but also systematically map your internal order model with new Amazon orders. The result is an efficient system where new orders are processed timely with full lifecycle status updates – from confirmation to shipping updates to tracking numbers – everything automated! So, choose me to achieve absolute production efficiency!