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Connect Existing React Solar Digital Twin Frontend to Backend APIs Project Description We have an existing React-based digital twin frontend called TwinPro for management and monitoring of solar power plants. Several existing screens currently obtain their information from static JSON/dummy datasets. We require an experienced React developer to connect the existing frontend to REST APIs while maintaining the existing UI and UX. This assignment is primarily API integration. It is NOT a UI redesign project. Existing Application Structure Enterprise ↓ Portfolio ↓ Plant ↓ Block ↓ Individual assets The frontend includes dashboards, GIS layouts, KPIs, alarms, assets and other operational modules. Scope of Work Review existing React project. Identify all hard-coded/static JSON data sources. Develop central API service layer. Replace static JSON with backend API requests. Implement environment-based API configuration. Integrate JWT/Cognito authentication tokens. Connect Enterprise dashboard. Connect Portfolio dashboard. Connect Plant dashboard. Connect asset details. Connect alarm data. Connect GIS/asset coordinates. Add loading states. Add API error handling. Add empty/no-data states. Maintain responsive behaviour. Document API integration. Example Change Current architecture: React UI → Static JSON Required architecture: React UI → API Service → REST Backend → Database Screens for Initial Integration Initial project should cover approximately: Login/session integration Enterprise Overview Portfolio Overview Plant Overview Plant KPI cards Alarm panel Asset register Asset detail GIS/plant map data Historical generation chart Work-order list Deliverables Milestone 1: Existing-code audit + API mapping Milestone 2: Central API service + authentication integration Milestone 3: Enterprise/Portfolio integration Milestone 4: Plant/Asset/Alarm integration Milestone 5: Testing, bug fixes and documentation Important Requirement Do not redesign the existing TwinPro UI unless specifically requested. We need clean, reusable code so that additional screens can subsequently be connected using the same API service architecture. All source code must be committed to our project repository. What to Include in Your Bid Please provide: Examples of React dashboards developed Experience connecting React with REST APIs AWS Amplify/Cognito experience Experience with GIS/map applications, if available GitHub/code sample Start your proposal with “TWINPRO REACT”. Preferred Skills React.js JavaScript RESTful API Amazon Web Services Frontend Development Suggested Project Type Fixed Price Suggested Budget ₹5,000–₹50,000 Target Completion 7 days
Project ID: 40631401
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65 freelancers are bidding on average ₹15,121 INR for this job

Hi there, I have gone through the React API Integration for Solar TwinPro React API Integration for Solar TwinPro. It looks straightforward at first, but in my experience, there’s usually a key detail that can cause issues later. I’ve handled similar projects before and can outline a practical approach for you. I have over 10 years of experience in Java, JavaScript, Mobile App Development, Amazon Web Services, AngularJS, React.js, Frontend Development, RESTful API, and I'm excited to be part of your project. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/microlent Let's discuss your project in the chat so I can recommend the most practical and cost-effective solution. ~ Rajesh
₹7,000 INR in 60 days
8.6
8.6

I have carefully reviewed your requirements and am confident that I can successfully complete this project. Thank you, Arjun
₹15,000 INR in 12 days
5.4
5.4

TWINPRO REACT Integration only, UI untouched — understood, and that constraint is what makes this predictable. The work is finding every static import and routing it through one service layer, not touching components' markup. Plan: - Audit the project for hard-coded JSON sources and list them against the screens: Enterprise, Portfolio, Plant, assets, alarms, GIS. - One central API client: base URL from environment config, Cognito/JWT attached by interceptor, token refresh handled in one place instead of per call. - Replace static data screen by screen, each with loading, error and empty states — the three states dummy data never needed and every real dashboard does. - GIS/asset coordinates wired to the backend without disturbing the existing map layer. - Responsive behaviour verified unchanged after each screen; integration documented. Proof: React and TypeScript frontends against REST backends are my core work, including dashboards consuming multi-source data with authentication and per-user scoping. I also work on the backend side of this exact platform pattern, so mismatches between what the API returns and what the screen needs get resolved rather than worked around. Question: is the backend already available for integration, or should I code against a documented contract and switch when it lands? Martin
₹12,500 INR in 5 days
5.6
5.6

TWINPRO REACT: With your project, I see an opportunity to leverage my 8+ years of Full Stack development experience, with a focus on React.js and Frontend Development, to facilitate the seamless integration of your existing platform. My proficiency in back-end API development and connection with AWS can help transform your current structure by replacing the hardcoded, dummy JSON data sources with a robust central API service that connects effectively to the rest of your backend database. Having successfully delivered over 200 projects, I have developed rich dashboards like the one you require for TwinPro, and possess deep knowledge and expertise in integrating REST APIs into React applications. Moreover, I have prior experience working with AWS Amplify/Cognito, skills that will be beneficial in implementing authentication tokens as well as ensuring smooth transition and security. Lastly, I adhere to high standards of cleanliness in my code which aim at reusability and scalability. Integrating additional screens using the same API service architecture won't be a pain point. I'm confident that with my skills and approach, we can complete this significant project within the specified timeframe giving TwinPro a more dynamic and efficient digital twin frontend for better solar power plant management and monitoring.
₹14,500 INR in 7 days
5.3
5.3

TWINPRO REACT — replacing static JSON with a clean API service layer while preserving the existing UI is precisely the kind of integration work we have handled for dashboards and monitoring platforms. We are APIE Tech, Bhubaneswar. We have built React dashboards with centralized API service layers, JWT/Cognito session handling, GIS map integrations, and modular hooks for data-fetching with loading, error, and empty states. We will not touch the UI — only the data layer, exactly as required. For TwinPro, we will audit all static JSON sources, build a reusable API service architecture, and connect all 11 initial screens across the 5 milestones, committing clean code to your repository throughout. Ping me and we can review the existing codebase together and get started right away.
₹10,000 INR in 10 days
4.6
4.6

Hi, I've reviewed your React API integration project. With 10 years of experience in JavaScript and React.js, I'll efficiently connect your TwinPro frontend to backend APIs. My approach: analyze, propose, implement, and test. I'll deliver a clean, timely solution. Best regards, Praveen Kumar
₹1,665 INR in 7 days
4.1
4.1

TWINPRO REACT — Connecting an existing React frontend to REST APIs without touching the UI is my daily work. I'm a full-stack developer at a software agency where I maintain production React dashboards (ERP, medical platform, fleet management) and regularly replace static/dummy data with live REST endpoints behind a central API service layer. I would follow your milestones exactly: M1 audit every screen and deliver a static-JSON-to-endpoint mapping document; M2 build the central API service (axios instance + interceptors), environment-based config per stage, and JWT token handling — I implement JWT auth (login, refresh, protected routes) daily, and Cognito-issued tokens integrate through the same Authorization-header pattern; M3-M4 connect Enterprise/Portfolio, then Plant/Asset/Alarm and GIS coordinate data, adding loading, error and empty states per screen while keeping the UI pixel-identical; M5 testing, fixes and integration documentation so your team can connect future screens using the same architecture. All work committed to your repository in small, reviewable commits. Dashboard examples and code samples available in my profile or on request. I can start today and deliver Milestone 1 within 48 hours.
₹12,000 INR in 7 days
4.0
4.0

Hello, Connecting the existing React Solar Digital Twin frontend to backend APIs for Solar TwinPro involves enhancing the user experience by integrating dynamic data sources while maintaining the current UI integrity. The key focus will be on developing a central API service layer, implementing JWT/Cognito authentication, and connecting various dashboards and operational modules. I would begin by reviewing the existing React project, identifying static data sources, and gradually replacing them with backend API requests. Ensuring responsive behavior, error handling, and documentation will be crucial for seamless integration. I have experience in developing React dashboards, connecting React with REST APIs, and working with AWS Amplify/Cognito. Additionally, I am well-versed in frontend development and have a strong background in JavaScript. I look forward to discussing how I can contribute to the success of the Solar TwinPro project. Best regards,
₹7,000 INR in 2 days
3.2
3.2

As an experienced React developer with a special focus on AI integration, I believe I'm the ideal candidate for your TwinPro project. My broad skillset spanning front-end development, JavaScript, and mobile app development will be valuable in connecting your existing React-based digital twin frontend to the necessary REST APIs. Over the course of my 6+ years in the industry, I have developed numerous React dashboards and have a deep understanding of connecting React with REST APIs. Additionally, I have hands-on experience with AWS Amplify/Cognito, which aligns perfectly with your project needs. Moreover, my solid background in frontend development will ensure that I complete the task of maintaining your existing UI and UX flawlessly. Regarding AWS-based GIS/map applications if available, while I haven't specifically worked on GIS-based solar twin projects, I can quickly grasp new concepts and technologies. My proficiency in other AWS services and my ability to learn new technologies rapidly has helped me not only adapt but excel in different project environments. To sum it up, choosing me for your TwinPro project means gaining a skilled professional who brings adaptability, efficiency, and an unwavering commitment to quality deliverables to the table. All of these factors combined will contribute to a successful implementation of your API integration while bolstering system performance. Will love to start this “??????? ?????” journey with you!
₹7,000 INR in 1 day
3.9
3.9

TWINPRO REACT! Hello there, great project you have. My name is Bimbola and I can assure you I'm the best person for this project. I've invested a considerable 9+ years into my craft as a GIS Specialist and Web Developer. Within those years, I have gained a deep understanding of Geospatial Analysis, Remote Sensing, Full-Stack Development, data analysis and 3D Design which are all important elements in making sure that your TwinPro React-based digital twin frontend is seamlessly integrated with your Backend APIs. Pitch: What sets me apart from the rest of the bidders is not just a set of skills that are directly aligned with your project details but also my ability to be result-driven while staying focused on efficiency and accuracy. I'm detailed, committed and innovative in my approach to solving problems so that businesses like yours can make informed decisions using my solutions. As a certified expert in GIS & remote sensing with related certifications from UC Davis, DHIS2, TuDelft and WageningenX, my knowledge base goes beyond just front-end development. It extends into areas like Spatial Data Analysis, Geolocation, Custom GIS Solutions and more; all important for analyzing your solar power plants' management. In conclusion, my offer is simple - deliver exceptional results within the agreed timeframe. I also assure you of consistent communication throughout the project delivery process; providing you regular updates and structured reports on our progress.
₹4,000 INR in 7 days
3.2
3.2

* TWINPRO REACT* Hi, I reviewed your requirements. I have experience building MERN applications with React, Node.js, Express, and MongoDB. I recently developed a Recipe Finder project featuring authentication, search, filtering, and CRUD functionality. I can complete your project with clean, maintainable code and provide deployment support. I’d be happy to discuss your requirements further. *Responsive design * Clean code * Fast delivery * Bug support after delivery * Deployment assistance * Documentation
₹5,000 INR in 7 days
2.8
2.8

TWINPRO REACT Hi, Your project looks really interesting. I have one quick question: **are the REST APIs fully documented (Swagger/Postman), or will API discovery and endpoint validation be part of this integration?** I have strong experience with **React.js, REST API integration, JWT authentication, Node.js, and enterprise dashboard applications**. I can replace the existing static JSON with a reusable API service layer, integrate Cognito/JWT authentication, implement loading, error, and empty states, and keep the existing TwinPro UI completely intact. I write clean, maintainable code and document the integration for future development. Looking forward to your response! Best regards, Monish Khan
₹11,000 INR in 7 days
2.3
2.3

TWINPRO REACT I reviewed the scope carefully and this project is fundamentally an API integration and frontend architecture task rather than a UI rewrite, which is the right approach for long-term maintainability. My focus would be to standardize the communication layer between the React frontend and your REST backend so future modules can be integrated consistently without duplicating logic across screens. Implementation approach: - Audit the current React structure and identify all static JSON dependencies - Create a centralized API service layer with reusable request handlers - Implement environment-based configuration for staging/production APIs - Integrate JWT/AWS Cognito authentication flow and token handling - Replace hardcoded datasets progressively across Enterprise, Portfolio, Plant and Asset modules - Add loading, retry, empty-state and error handling patterns consistently across screens - Preserve the current UI/UX and responsive behavior exactly as requested - Organize integration code to simplify future expansion of dashboards and operational modules I also have experience working with scalable backend integrations, REST APIs, AWS services and data-heavy operational systems, which is important for dashboards involving KPIs, alarms, GIS data and historical metrics. The delivery can be organized exactly around your proposed milestones, with continuous commits to your repository and clear documentation for the API mapping and integration flow. Estimated timeline for the initial integration scope is approximately 7 days depending on API readiness and documentation quality.
₹12,500 INR in 7 days
0.7
0.7

Hello, I hope this message finds you well. I am writing to express my interest in the React API Integration project for Solar TwinPro. With my expertise in Java, JavaScript, Mobile App Development, Amazon Web Services, AngularJS, React.js, and Frontend Development, I am confident in my ability to successfully connect the existing React frontend to backend APIs while maintaining the current UI/UX. I have extensive experience in React dashboards, connecting React with REST APIs, AWS Amplify/Cognito, and GIS/map applications. Please find examples of my work and code samples on my GitHub. I am excited about the opportunity to work on this project and deliver high-quality results within the specified timeframe. Thank you for considering my application. Best regards, Winston
₹7,000 INR in 7 days
0.0
0.0

TWINPRO REACT Hi there, Resonite Technologies is ready to connect your existing Solar TwinPro React frontend to your backend REST APIs while preserving 100% of your current UI/UX layout and performance. What We Will Deliver: • Centralized API Architecture: Scalable, reusable API service layer with Axios/Fetch, environment-based configuration, and JWT/Cognito token handling. • Full Endpoint Integration: Wire static JSON screens (Enterprise, Portfolio, Plant dashboards, Asset details, Alarms, GIS map data, and Historical charts) to live APIs. • State & Error Handling: Comprehensive loading, empty, and graceful error states across all components. • Complete Handover: Clean code commits to your repository, thorough API integration documentation, and structured milestones (Code Audit → Auth/Service → Dashboard Integration → Testing). Why Resonite Technologies: • React & API Expertise: Proven track record building and integrating complex enterprise React dashboards with REST/GraphQL backends. • AWS & GIS Capabilities: Deep hands-on experience with AWS Cognito/Amplify authentication and Leaflet/Mapbox GIS map integrations. Let’s connect via chat to review your API specs and kick off Milestone 1! Best regards, Resonite Technologies
₹50,000 INR in 7 days
0.0
0.0

I can help you getting this integration done within your budget and timeline. Lets chat and discuss my experience and your requirements in detail and get your work done.
₹1,500 INR in 1 day
0.0
0.0

Hello! I have read your project requirements carefully. I understand that you need API integration in a React application. I pay close attention to clean code, timely communication, and meeting project requirements. I am committed to delivering quality work and providing support for any required revisions. I would appreciate the opportunity to discuss your project in detail and begin work as soon as possible. Thank you for your time and consideration
₹7,000 INR in 7 days
0.0
0.0

TWINPRO REACT - Connect your React Solar Digital Twin Frontend with a Reliable and Experienced Senior Developer like me. With over 5 years of experience as a Full-Stack Développer, I have executed numerous API integrations, including connecting React apps with RESTful APIs just as required for your project. My skills in AWS Amplify/Cognito perfectly fit the demand to ensure authentication during data transfer. Even though you clearly mentioned your project is not about redesigning UI, I value the importance of clean, reusable codes base that promotes scalable development to add more features to the app. Moreover, hiring me offers a chance to leverage my expanded skill sets in GIS/Map applications which can add more value to your solar power plant management and monitoring system. My proficiency in GitHub and grass-roots approach makes source code security and repository commitment an easy road ahead. Let's work together to make sure your React Solar TwinPro reaps the real benefits of API integration ensuring minimal bugs and maximum efficiency within your suggested budget and timeframe.
₹5,000 INR in 7 days
0.0
0.0

Hi — React API integration is my lane and your scope is clear: keep the existing TwinPro UI/UX exactly as-is and replace the static JSON on the Enterprise → Portfolio → Plant → Block → asset screens with live REST data. Not a redesign. Approach: - Audit the repo and list every hard-coded/static JSON source per screen (dashboards, GIS, KPIs, alarms, assets). - Central API service layer (single place for base URL, headers, interceptors) with environment-based config for dev/stage/prod. - JWT/Cognito token handling — attach tokens, refresh, 401 handling. - Wire Enterprise, Portfolio and Plant dashboards, asset details, alarm data and GIS/asset coordinates. - Add loading, error and empty/no-data states per view; preserve the existing responsive behaviour. - Document the integration as an endpoint-to-component map. Changes stay isolated to the data layer, so your components and markup are untouched. Quick questions: is there an API contract available (OpenAPI/Swagger), and is auth Cognito Hosted UI or a direct token flow? I can also align this with the backend ingestion and analytics pieces if you'd like one developer across the twin. Rating: 5.0 stars. — Ricardo
₹8,500 INR in 5 days
0.0
0.0

TWINPRO REACT: I've built multiple React dashboards with centralized API service layers and have extensive experience migrating hard-coded data to REST backends while preserving UI integrity. I'll start with a thorough code audit to map all static JSON sources, then build a clean, reusable API service layer with JWT/Cognito token handling and environment-based configuration. I'll execute the integration across your hierarchy (Enterprise, Portfolio, Plant, Asset, Alarms) following your five-milestone structure, ensuring loading states, error handling, and no UI regressions. All code will follow best practices for future-proofing so your team can integrate additional screens independently using the same architecture.
₹1,515 INR in 5 days
0.0
0.0

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