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I need a Node.js developer who can quickly wire up our backend to a third-party service. The job is straightforward: create the REST calls, handle OAuth authentication, and move product data back and forth in clean JSON. Because we may plug this work into either an existing codebase or a fresh project—the decision is still open—I’m looking for tidy, well-commented code that can drop into either scenario without fuss. You should be comfortable testing endpoints in Postman (or any similar tool) and delivering sample requests, responses, and error cases so I can verify everything on my side. Deliverables: • A small, self-contained Node.js module that authenticates via OAuth and exposes functions for the required endpoints • Clear setup notes (env variables, routes, any middleware) • Postman collection or curl samples demonstrating successful requests and responses for each call If you’ve integrated external APIs before—especially where OAuth and product catalogs are involved—please highlight that so I can gauge fit quickly. I expect this to be a few hours of focused work for someone experienced, and I’m ready to review your proposal right away.
ID do Projeto: 40311325
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Ativo há 1 mês
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Hey, I am ready when you are.✅ I’ve worked on something very similar. What usually trips people up here is OAuth handling and data consistency - tokens expiring mid-request or mismatched payloads between systems. I’ve done plenty of third‑party API hookups in Node.js, mostly working with REST integrations for product and order data. I keep the modules self-contained, with clear setup notes and Postman examples so it’s easy to drop into any project. This sounds like a clean, focused job - I can get it wired up fast and tested end‑to‑end. Let's chat! -Ruslan
$140 USD em 7 dias
2,3
2,3
189 freelancers estão ofertando em média $146 USD for esse trabalho

Hello, Having successfully executed numerous projects involving third-party API integration, OAuth authentication, and JSON data handling, hiring me would ensure the smooth and efficient completion of your Node.js task. Our expertise in JavaScript is a perfect fit for the scope of the project plus our profound knowledge working with APIs and OAuth will facilitate a seamless integration process ensuring secure data transfer protocols. Additionally, having an extensive understanding of product catalogs, I recognize the importance of maintaining clean JSON during data exchange as it helps in ensuring that the system remains adaptable to any future changes. Not to mention, my ability to write compact code and provide comprehensive documentation in line with your request will make it easy for you or your team to review my work. Most importantly, I believe in building long-term client relations through quality service delivery, and that reflects in add_value_to_clients our approach to every project, no matter how small or big they are. As a CEO at Our Software, excellence is what we strive for and I guarantee you that this project will be handled adroitly from initiation to completion. Looking forward to adding another successful integration project into my portfolio. Thanks!
$130 USD em 2 dias
8,6
8,6

Hi, I can create the REST calls for you quickly and handle the OAuth authentication seamlessly. With over 7+ years of experience in Node.js development, I’ve successfully integrated various external APIs and implemented OAuth for product catalogs. I’ll ensure that the code is clean, well-commented, and easily drops into your existing codebase or a new project. Additionally, I will provide a detailed setup guide, and a Postman collection showcasing the endpoints with sample requests and responses for your verification. I’m confident I can deliver this within just a few hours. Let me know if you’d like to proceed! Best Regards, Priyanka
$140 USD em 2 dias
8,4
8,4

Hi there, I reviewed your requirements and this is exactly the kind of work we handle well. Third-party API integrations are straightforward when you've got the right approach — we've wired up dozens of services into Node.js backends, so the OAuth and REST patterns are familiar territory. I have a couple of quick questions about which service you're integrating and what your current backend looks like — happy to jump on a call to sort that out. I have delivered 1500+ web and mobile projects over 14+ years — happy to share relevant examples. Thanks, Hasan
$200 USD em 7 dias
8,7
8,7

Hi there, I can help quickly integrate your backend with the third-party service using Node.js. I have experience handling OAuth authentication and moving product data via clean JSON, and I have done similar API integrations before. Once you share the API details and access, I will start with setting up OAuth authentication, creating the REST calls for product data, and writing a clean, self-contained Node.js module with proper error handling. I’ll also provide Postman/curl samples and setup instructions for easy integration. I can start immediately and deliver this efficiently so you can test and verify everything on your side, and I would request a quick call to discuss the details and get started. Thanks, Rahul A.
$160 USD em 3 dias
8,7
8,7

Hello, This looks like a clean API integration task where the main challenge is handling OAuth correctly while keeping the module reusable across different codebases. I have worked on similar integrations involving OAuth flows and product data sync, where clean structure and proper error handling were critical. I’ll build a self-contained Node.js module with clear functions for each endpoint, secure token handling, and structured JSON responses. I will also provide setup notes and a Postman collection with success and error cases so you can verify everything easily. The Bid amount is subject to change and will be finalized after a complete project discussion. Share the API details and I will start immediately. Regards, Smile Mittal
$100 USD em 7 dias
8,1
8,1

Hi , I understand you need a clean, well-commented Node.js module that handles OAuth authentication and REST calls for product data integration. I’m experienced with OAuth and API integrations and will deliver a self-contained module with clear setup instructions and Postman samples, ensuring smooth testing and easy integration into any codebase. I can complete this focused task within 3 days, providing quality code that fits your project needs perfectly. Let's discuss your exact API details to get started. Could you share the third-party API documentation or specific endpoints you want integrated? Best regards, Muhammad
$200 USD em 3 dias
8,1
8,1

Hi, I have extensive experience in integrating third-party APIs using Node.js. I will create clean, well-commented code for seamless integration, along with detailed setup notes and Postman collections for easy verification. Let's discuss your project requirements further. Regards, Sai Bhaskar
$95 USD em 2 dias
7,7
7,7

⭐⭐⭐⭐⭐ Create Node.js Backend for Third-Party Service Integration ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you're looking for a Node.js developer to connect your backend to a third-party service. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for Node.js integrations. I will create REST calls, handle OAuth authentication, and manage product data in clean JSON, ensuring everything runs smoothly. ➡️ Why Me? I can easily do your Node.js integration as I have 5 years of experience in backend development, specializing in RESTful APIs, OAuth authentication, and JSON data handling. Not only this, but I also have a strong grip on testing tools like Postman, ensuring that all endpoints function correctly. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Node.js Development ✅ RESTful API Creation ✅ OAuth Authentication ✅ JSON Data Handling ✅ Postman Testing ✅ Module Development ✅ Code Documentation ✅ Error Handling ✅ Middleware Setup ✅ Environment Configuration ✅ API Integration ✅ Version Control (Git) Waiting for your response! Best Regards, Zohaib
$150 USD em 2 dias
7,9
7,9

I reviewed your project details and highly capable to handle this task. I am an INNOVATIVE NODE.JS / Full stack developer having great expertise with all the latest CRM and Frameworks. I will deliver you high quality work . I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks
$250 USD em 7 dias
8,2
8,2

I HAVE SUCCESSFULLY BUILT SIMILAR NODE.JS INTEGRATIONS WITH OAUTH AND PRODUCT CATALOGS – STREAMLINING DATA FLOW SEAMLESSLY BETWEEN PLATFORMS. I can quickly develop a clean, self-contained Node.js module to authenticate via OAuth and handle all REST endpoints for your product data. Core features include secure OAuth authentication, JSON-based request/response handling, and robust error management. I will provide clearly structured code with detailed comments, making it plug-and-play for either a fresh project or an existing codebase. Roles will include: Admin (full access to setup and API calls) and User (limited read/write access as needed). Deliverables include complete source code, setup instructions, environment variable guidance, middleware configuration, and Postman/curl samples for testing each endpoint. Additionally, I offer 2 years of free ongoing support post-launch to ensure smooth operation and quick fixes if needed. My approach emphasizes reliability, maintainability, and easy integration, so you can validate functionality confidently from day one.
$140 USD em 7 dias
7,9
7,9

With over a decade of experience as a Full Stack Developer and Software Engineer, I have honed my skills in creating seamless third-party integrations, exactly the kind of work your project requires. As a problem-solver by nature, I understand the significant role well-commented and easily integratable code plays in developing software that can seamlessly fit into either an existing or new codebase. My portfolio reveals several successful API integrations with OAuth and product catalogs, which I've executed with Node.js, giving me a firm grasp on the task at hand. Extensive familiarity with testing endpoints using tools like Postman is second nature to me. I am confident in delivering comprehensive samples of successful requests, responses, and even error cases as you've outlined. This approach ensures streamlined verification on your end while maintaining transparent communication throughout our collaboration. In addition to my specialization in third-party API integration using Node.js, my diverse skill set includes proficiency in JavaScript and PHP- valuable knowledge for this project. Combined with meticulous attention to detail, an ability to scale systems, and efficient time management, you can be assured of timely delivery without compromising quality. Let's create a robust backend system together!
$150 USD em 12 dias
7,0
7,0

Hi, I can quickly build a clean Node.js module to integrate your backend with the third-party service using OAuth and REST APIs. I’ll ensure well-structured, reusable code with proper error handling, along with Postman examples for testing all endpoints. The solution will be easy to plug into any existing or new project. Thanks Anshuman
$80 USD em 3 dias
6,4
6,4

Hi, I can quickly wire up your Node.js backend to the third-party service, handling OAuth authentication and clean JSON data flow for product sync. I’ve integrated multiple external APIs before, so I’ll deliver a tidy, well-commented module that works seamlessly in both new and existing codebases. I’ll also provide clear setup notes along with a Postman collection (or curl samples) covering success and error cases for easy validation on your end. Ready to get this done in a few focused hours. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T
$180 USD em 7 dias
6,6
6,6

Hello, your goal to wire your backend to a third-party service with REST calls, OAuth, and clean JSON data exchange is a clear business objective I can deliver-reliable integration with testable artifacts that fit into either an existing codebase or a fresh project. This is my speciality. I'm Iosif Peterfi, 15+ years delivering web backends and CMS integrations across Europe. Portfolio: https://www.freelancer.com/u/iosifpeterfi I will deliver a small, self-contained Node.js module that authenticates via OAuth, exposes the required endpoints, and is drop-in ready. You'll get clear setup notes (env vars, routes, middleware) plus a Postman collection or curl samples showing success, failures, and edge cases for quick verification. The result is lower risk, faster testing, and quicker business value for your product catalog. Similar project story: Recently I helped a consumer goods client connect to a supplier API; we shipped a drop-in module that cut data-sync time from hours to minutes and reduced mismatches. Let's chat - I can walk you through my approach in 15 minutes.
$600 USD em 3 dias
6,5
6,5

Hello There!!! ★★★★ Node.js developer ready to integrate your API with clean, maintainable code ★★★★ Project understanding: I understand you need a Node.js module that connects to a third-party API using OAuth, moves product data as JSON, and works standalone or in existing code. Deliverables include Postman/curl samples and clear setup notes. Services mentioned here based on project details ⚜ Build self-contained Node.js module for API integration ⚜ Handle OAuth authentication securely ⚜ Create REST calls for required endpoints ⚜ Deliver clean, well-commented code ⚜ Provide Postman collection or curl samples ⚜ Setup instructions with env variables and middleware ⚜ Test endpoints for success and error cases I have strong Node.js experience integrating APIs, working with OAuth and product catalogs, and delivering fast, tidy solutions. I’ll use Postman for testing and ensure smooth, plug-and-play code. Looking forward to discussing this and starting right away. Warm Regards, Farhin B.
$110 USD em 7 dias
6,5
6,5

With over 13 years in the software development industry, I have garnered extensive experience in working with numerous APIs, specifically OAuth, and on fostering seamless integration within Node.js frameworks. Along with crystal-clear communication, a critical aspect of API integration is ensuring that your code fits effortlessly into any project. This is a part of my work ethic. I always code with structural precision and meticulousness meaning that whatever project - new or existing - we decide to integrate third-party service into will incur zero fuss upon integration. My skills go beyond just working with APIs; they encompass developing robust applications while staying updated with the current trends and best practices across numerous languages and platforms. To illustrate this point, besides handling JSON and Node.js for your specific project, I bring to the table expertise in PHP, AngularJS, React Native, and many others which can come in handy should you need me to extend my services beyond the initial scope of work. To summarize, let me ensure you that once the work is awarded it'll be executed expediently- though a little waiting time ensures We understand each other's requirements and expectations which eliminates any unnecessary iterations or clarifications. Trust me, it's worth it. I look forward to a potential partnership soon. Thank you! (965) ) 96601524
$140 USD em 7 dias
6,7
6,7

Integrating third-party services without meticulous handling of OAuth can expose your system to authentication failures or data inconsistencies, especially when the implementation must flexibly fit both new and legacy Node.js environments. Your core need is a compact, robust Node.js module that seamlessly manages OAuth authentication and reliably exchanges product data via RESTful JSON calls. At DigitaSyndicate, a UK-based agency, we don't just write code; we architect infrastructure to protect your investment. Our local accountability ensures adherence to stringent UK standards and rapid resolution of issues, reinforcing confidence in the integrity of your integration. How have you planned to encapsulate the OAuth token refresh logic to prevent lapses in authentication during sustained API interactions across varying deployment contexts? Casper M. DigitaSyndicate
$200 USD em 14 dias
5,5
5,5

Hi, I can quickly build a clean Node.js module that handles OAuth authentication and securely exchanges product data with the third party API. I’ll structure it as a self contained, well commented module with reusable functions so it can plug into your existing codebase or a fresh setup. My approach includes thorough endpoint testing via Postman with sample requests, responses, and error handling for easy verification. You’ll receive clear setup notes with environment variables and ready to use examples for seamless integration. Let’s discuss how I can help. Best Regards, Fizza
$150 USD em 5 dias
5,8
5,8

I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$140 USD em 7 dias
5,5
5,5

Hi, **I CAN START WORK ON IT IMMEDIATELY** I have strong experience integrating third-party APIs with Node.js, including OAuth authentication and handling structured JSON data. I’ll deliver a clean, reusable module with well-documented endpoints, along with Postman collection and setup instructions for easy integration into any codebase. I have EXCELLENT work experience of 9+ years in this field. #Giving complete SATISFACTION of work #Quality and Rapid work Relevant project types: Node.js, API integrations, OAuth, MongoDB, Express, third-party services Best regards. Ketan Vaghasiya
$210 USD em 7 dias
5,5
5,5

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