Node.js REST & GraphQL Integration

@onkarkulkarni8

Hi, your "Node.js REST & GraphQL Integration" project is right in my wheelhouse. I develop modern JavaScript apps end to end — React/Vue/Next on the front and Node/Express on the back, in TypeScript where it helps. Working with javascript, software architecture, nosql couch & mongo, node.js, software development, angularjs, documentation, graphql, api development, rest api, I focus on responsive, fast UIs, clean component structure, and reliable APIs — no page-builder shortcuts. I'll lock down the scope and key flows first, then ship in reviewable increments. Let's hop on a quick chat to align on your requirements? ⭐ 5.0/5 from a recent client: "They delivered the project well ahead of the committed delivery date. It was an experienced team, and I would be happy to hire them again." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.

@sanarena

Hi, I’ve reviewed the scope and can integrate the REST and GraphQL service layers into your existing Node.js codebase within 12 days for INR 750. My approach keeps everything idiomatic to Express with async/await, using Axios for REST calls and Apollo Client for GraphQL—this pairing gives you mature retry and token-management patterns out of the box while staying lightweight. I’ll start by tracing the current middleware and route structure to place a dedicated service layer that returns typed responses (TypeScript definitions). Each integration will include server-side validation of upstream data, parameterized queries if any local caching is needed, and structured error handling with rate limiting on outbound calls. Tests will use Jest with mocked providers plus a few live smoke tests, targeting the 90% coverage threshold you mentioned, and I’ll update the README with setup steps, env vars, and cURL examples. One thing that would help me lock the estimate: are all external services already accessible with stable credentials and documented schemas, or will any require sandbox provisioning before I can start wiring them in?

@abhishek060

Hello, Your project requires more than wiring up a few API calls—it's important that the integration layer remains clean, performant, and easy to maintain as new services are added. I can help extend your existing Node.js codebase with well-structured REST and GraphQL integrations while keeping the implementation idiomatic to Express and async/await. My approach is to keep third-party services isolated behind reusable service layers with centralized error handling, token management, typed responses, and comprehensive Jest testing so downstream modules remain simple, maintainable, and easy to extend while meeting your performance and code quality requirements. One question: Will any of the external providers require OAuth/token refresh flows, or are they all API key based? This will help determine the most appropriate authentication and retry strategy. I look forward to discussing the project with you. Best regards, Abhishek

@mayankinnovative

With two decades of experience diving into complex backend logic and fixing broken APIs, I am well-versed in the type of expertise you are seeking. As an expert in Node.js, Express, Axios/fetch and GraphQL; integrating REST and GraphQL endpoints, writing clean typed responses, running tests, and managing documentation for future reference is right up my alley. My focus on maintainable solutions aligns perfectly with your project's requirements. I assure a stable, scalable codebase with a robust API connectivity solution that will not only meet but exceed your expectations. My clients know me for delivering reliable results quickly without sacrificing quality. Should you choose to collaborate with me on this project, you will be making a significant investment in the long-term viability of your application. Rest assured that we can scale as your business grows while maintaining system reliability. Let's talk further about how I can help optimize your codebase for seamless data consumption and transformation!

@jagratip3

Hi, I can extend your existing Node.js codebase with a clean, scalable API integration layer that fits naturally into your current architecture. I'll analyze the project structure, implement robust REST and GraphQL service modules using Express, async/await, and modern patterns, while handling authentication, token refresh, retries, rate limiting, and comprehensive error handling. I'll return well-typed responses using TypeScript or JSDoc, write Jest unit and integration tests with high coverage, and ensure the new code passes linting without introducing issues. I'll also document every new route, resolver, environment variable, and provide updated README examples using Postman or cURL. We can deliver this in milestones, starting with architecture review and core integrations, followed by testing, documentation, optimization, and final validation against your acceptance criteria.

@monfssf

Hello Sir/Mam I can help integrate your existing Node.js application with both REST and GraphQL services while keeping the architecture clean, scalable, and easy to maintain. I understand the importance of building a proper service layer with robust authentication, retry logic, structured error handling, and well-documented code that fits naturally into your current Express application. I have experience developing backend systems, REST APIs, API integrations, automation solutions, and database-driven applications. My approach is to first analyze your current codebase, identify the most suitable integration points, and then implement modular service layers using modern JavaScript practices (async/await, middleware, reusable utilities). I'll also ensure responses remain well structured, add comprehensive Jest tests, and provide clear documentation so future development remains straightforward. I focus on writing clean, maintainable, and well-tested code that integrates seamlessly with existing applications while meeting performance and quality standards. To discuss further project details, please message me through Freelancer chat. Regards Yogesh Kumar S

@monicasynthesis

Hello, I'm interested in your project and confident I can deliver clean, scalable API integrations for your Node.js application. I have 5+ years of experience with Node.js, Express, REST APIs, GraphQL, Axios, and TypeScript. I will ensure: * Clean REST & GraphQL integrations with secure token management and error handling * Type-safe responses, Jest test coverage, and well-documented code * Lint-free, maintainable implementation following Node.js best practices Warm Regards, Monica Bhatia

@iimtpradeepdash

As a seasoned Node.js developer and the founder of a highly productive software engineering company, I'm confident that my team and I are primed to tackle your project. Our approach begins with mapping out the existing structure meticulously, identifying the optimal touch-points for new service layers, all while adhering to idiosyncrasies of Node.js. With 7+ years in the industry and 575+ successful projects delivered, we know how to build solutions that scale and perform optimally under diverse infrastructures. In terms of integration, we're skilled with popular libraries like Express, Axios/fetch, Apollo Client/Server - essential skills for efficiently wiring REST and GraphQL calls into your codebase. We also understand that typing and documentation are vital for fluid development and robustness in codebases at scale; hence we'll ensure clean typed responses (TypeScript definitions/JSDoc) safeguarding downstream modules. In short why choose us? We optimize not just for performance but also for stability on every project we undertake. We've built platform MVPs that have successfully spun-into multi-billion dollar entities post series-A funding demonstrating our capability in envisioning projects holistically from inception to production-grade deployment. Your project would be in safe hands

@RajAbhisek

Your acceptance criteria around <200ms response times and 90% test coverage tells me you care about production-grade code—exactly our kind of work. We've built similar Express + GraphQL integrations: a healthcare SaaS connecting patient data APIs with Apollo Server + REST fallbacks, and an EdTech platform wiring third-party content APIs via Axios with retry logic and TypeScript-typed responses. For your project, I'd map the external service contracts first, then build a clean abstraction layer separating REST (Axios + interceptors) from GraphQL (Apollo Client)—keeping Express middleware lean and testable. Jest mocks for external calls, 90%+ coverage from day one. Ping me to discuss your codebase structure—happy to share a quick architecture sketch upfront.

@TeraByte26

Hello Fazulelahi, I can analyse your Node.js codebase, integrate REST and GraphQL services, and write clean tests and documentation, meeting the specified acceptance criteria, within your budget of 400-750 INR per hour. Waiting for your response in chat! Best Regards.

@dushyant317

Hi, I can seamlessly integrate REST and GraphQL APIs into your existing Node.js/Express codebase, implementing a clean service layer with async/await, secure token management, retries, robust error handling, typed responses (TypeScript/JSDoc), Jest test coverage, and comprehensive documentation. I'll ensure the solution is scalable, maintainable, lint-clean, and optimized to meet your performance and quality requirements.

@agwidfrnd19

With my extensive eight-year experience in JavaScript and Node.js, I am confident that I can bring robustness to your API connectivity needs. Given my proficiency in Express, middleware, async/await, as well as my technical skills in Axios/fetch and Apollo Client/Server which you have specified as necessary for this project, I believe that I am an excellent fit for ensuring idiomatic integration of your services onto the codebase. My goal in any project is to maintain coherence and seamlessness which I intend to bring to your application by providing clean, typed responses through either TypeScript definitions or JSDoc. Furthermore, having worked on various web development frameworks and Wordpress platforms during my tenure at Apcomp Infotech LLP, I understand the necessity of well-documented codes for future contributors. It comes second nature to me to document all the new additions or changes made to a codebase so that others can follow the flow without any guesswork. Lastly, speed is an undeniably important aspect of any application. To meet your acceptance criteria regarding fast response times on all endpoints, I am ready to work diligently with your codebase until we reach benchmarks below 200ms for each configured endpoint on local conditions along with achieving the other outlined criteria.

@thiagofoz87

Your requirements point to more than simple API wiring — this needs a maintainable integration layer that fits naturally into the existing Node.js architecture while keeping performance, observability, and type safety under control. I can help by structuring the integrations around reusable service modules and middleware patterns, keeping REST and GraphQL clients isolated from business logic while exposing predictable typed contracts to the rest of the application. For REST integrations, I typically implement resilient Axios/fetch wrappers with retry strategy, timeout handling, token refresh flows, and normalized error mapping. For GraphQL, I can work with Apollo-based patterns or lightweight client implementations depending on the current stack. For the testing side, I would cover the integration layer with Jest unit and integration tests using mocks where appropriate and real service validation when needed, targeting the coverage and lint requirements you specified. I also pay close attention to response transformation and caching opportunities to keep local benchmark performance within the expected threshold. Deliverables would include: - Clean integration architecture aligned with the existing Express codebase - REST + GraphQL connectivity with robust error handling - Typed responses via TypeScript or JSDoc - Jest test suite with high coverage - Documentation for routes, resolvers, env variables, and example requests I can start by reviewing the current structure and proposing the integration strategy before implementation begins.

@krishnaj64

Hi! Your project description caught my eye because it aligns perfectly with what I do best. I regularly work with mature Node.js and Express systems, wiring up clean integration layers for both REST and GraphQL APIs. Keeping things idiomatic, handling token lifecycles, and ensuring robust error management with `async/await` is standard practice for me, so I can jump right into your codebase without a steep learning curve. I really appreciate that you have clear acceptance criteria. I always prioritize performance and type-safety—whether using TypeScript or JSDoc—and I maintain a strict habit of writing thorough Jest tests and clean documentation. You can count on meeting that 90% test coverage and sub-200ms benchmark while keeping the linter completely happy. I’d love to take a look at your current structure and help you build an integration layer that your team will enjoy working with. Let’s jump on a quick chat to discuss the specifics, map out a timeline, and align on a budget that works for you!

@Ateeshkumar

As an experienced and results-driven full-stack developer, both in frontend and backend, I am your ideal candidate for this Node.js REST & GraphQL Integration project. With a proven track record of successful software delivery that consistently meets client expectations One of my core strengths is my ability to adopt best practices and write clean, maintainable code - qualities that are essential for this project to ensure future scalability and collaboration with other developers on your team. Moreover, being familiar with tools like Express, Axios/fetch, and Apollo Client/Server - important components required in wiring external services - guarantees quick turnaround on endpoints configuration and efficient data management. Lastly, with me on board, you can expect exceptional documentation standards; leaving no room for guesswork for contributors after the project completion. In line with the acceptance criteria you've set out, my development process includes writing comprehensive tests using Jest that cover 90% of new lines and yield zero issues on linting. This guarantees that every unit works as expected against mocked and real services; ensuring consistent performance acheiving sub-200 ms returns throughout. I am ready to jump in from day one so let's connect!

@AHMEDALI008

I can work on this entire project at a fixed rate of ===> INR 200 per hour regardless of the hours required. My priority is providing high-quality work at a budget-friendly price. If you’re looking for premium results without the premium price tag, let’s connect!

@williamd168

Hello, I have strong experience working with Node.js and Express, building scalable API integration layers that handle both REST and GraphQL services with clean architecture and async/await patterns. I can analyze your existing codebase, identify optimal integration points, and implement robust service layers with token management, retries, structured error handling, and type-safe responses using TypeScript or JSDoc. I also have experience writing high-coverage Jest tests and ensuring code quality with linting and maintainable documentation. I will ensure all endpoints are performant, well-tested, and easy to extend, with clear README updates and examples for future contributors. So I am sure I can complete this project perfectly as you want. Please send me a message so that we can discuss more. Thanks

@adrianc109

Hi, I have strong experience with Node.js, Express, REST APIs, GraphQL, and third-party service integrations. I can analyze your existing codebase and build a clean, scalable integration layer that follows best practices. I will implement REST and GraphQL connectivity with secure token management, retries, error handling, and consistent response structures. I'll also add TypeScript definitions or JSDoc, write comprehensive Jest unit and integration tests, and document the new routes, environment variables, and setup process. My focus is on clean, maintainable code that meets your performance, testing, and linting requirements. I'm ready to review your project and start immediately. Thank you.

@suryakanta426

Hi, This is squarely in my wheelhouse — I've spent a good chunk of my recent work wiring REST and GraphQL integrations into existing Node.js/Express codebases, so I know how to slot in cleanly without disrupting what's already there. My approach: first map your current structure to find the right touch-points for a service layer, then build out the integration layer with proper token management, retry logic, and error handling for both REST and GraphQL calls. I'd keep everything idiomatic — Express middleware, async/await, no unnecessary abstraction. For type safety, I'll use TypeScript definitions or JSDoc depending on what your codebase already leans toward, so downstream modules get clean, predictable responses. I take testing seriously — Jest coverage for both unit and integration tests, targeting your 90% threshold, run against mocked and real services. I'll also make sure npm run lint stays clean and update the README with setup steps, env variables, and example requests via Postman/cURL. Comfortable with Axios/fetch, Apollo Client/Server, and the <200ms benchmark target. Happy to walk through your current architecture on a quick call before diving in. Regards, Suryakant