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I already have three code-bases in place—a PHP admin dashboard, a Kotlin-based user app, and a separate Kotlin driver app. What’s missing is the glue that ties them together. I need clean, well-documented REST APIs added to the PHP back-end, wired up to the existing databases, and then integrated into both Android apps. Scope of work • Extend or refactor the current PHP code to expose secure endpoints for authentication, trip management, real-time updates, and anything else the apps currently call locally. • Configure the database schema (MySQL) so every action taken in the user or driver app instantly reflects on the admin dashboard. • Update both Kotlin projects in Android Studio to consume the new endpoints, handle all responses gracefully, and fall back safely when offline. • Build signed test APKs for the user and driver apps so I can install and verify the new flow on real devices. • Provide concise API documentation—Postman collection or similar—so future updates are painless. Acceptance criteria 1. User and driver apps install from the supplied APKs and pass through login, trip creation, tracking, and completion without crashes. 2. The admin dashboard reflects new and updated trips in real time. 3. All endpoints return the correct HTTP status codes, follow JSON standards, and are secured against common exploits (SQL injection, XSS, etc.). 4. Postman collection and a short read-me fully explain setup and usage. If you have solid experience juggling PHP, Kotlin, MySQL, and RESTful best practices, this should be a straightforward integration job with a quick turnaround.
ID do Projeto: 40183743
151 propostas
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Ativo há 6 dias
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151 freelancers estão ofertando em média $511 USD for esse trabalho

Hi, I will add clean REST APIs to your PHP admin backend, wired to MySQL, and connect them to both Kotlin apps. My plan: assess the three code bases, design secure endpoints for authentication, trip management, and real-time updates, and align responses with JSON standards and proper HTTP codes. I will refactor or extend the PHP layer to support token-based auth, parameterized queries, input validation, and protections against SQL injection and XSS. I will adjust the MySQL schema so actions in the user or driver apps update the admin dashboard in near real time, with clear change events and minimal latency. I will update both Kotlin apps in Android Studio to consume the new endpoints, handle responses gracefully, implement offline caching and automatic retry when offline, and verify login, trip creation, tracking, and completion flows end-to-end. I will produce signed test APKs for the user and driver apps so you can install and test on real devices. I will provide API docs as a Postman collection and a compact read-me with setup steps and usage. Do you prefer JWT or OAuth for authentication tokens, and what token expiry should I target? What real-time mechanism do you want to reflect in the admin dashboard: WebSocket, Server-Sent Events, or long polling? What offline behavior and retry policy should the Kotlin apps implement when network is unavailable? Any API rate limits or monitoring requirements to integrate with existing tools? Do you want the API/docs delivered o
$750 USD em 17 dias
9,3
9,3

Hello, I'm Omer, an astute and innovative developer, proficient in PHP, Kotlin, MySQL, and RESTful best practices. Having thoroughly reviewed your project description, I am confident in my ability to execute the various tasks required for a successful integration.I am incredibly well-versed in handling API integrations and have extensive experience using both Kotlin and PHP frameworks. Your existing codebases require extending or refactoring for creating secure endpoints for effective authentication, trip management, real-time updates and more. With my vast expertise in local databases and Web APIs development,integrating these functionalities with your existing apps will be second nature to me. Let's chat to proceed.
$1.500 USD em 30 dias
8,8
8,8

As a seasoned veteran in the world of web and app development, I have clocked an impressive 18 years in the industry. At CnELIndia, we prioritize consistent delivery, strict adherence to time and budget considerations, and creating solutions tailored to our clients' needs. In line with these values is your project. We specialize in PHP, Kotlin, MySQL, and RESTful practices, including exactly what your project needs: API Development and Integration at its finest. We guarantee clean and well-documented code that securely connects your PHP backend to the Android apps, syncing real-time updates across databases. But we don't stop there; our services extend to updating your Kotlin projects in Android studio to smoothly incorporate the new endpoints. To ensure complete satisfaction, I will provide signed test APKs for both user and driver apps so you can personally verify the efficiency of our integration work on real devices. Moreover, we will also furnish concise API documentation in a format of your choosing (whether it be Postman collection or similar), allowing for future updates to be tackled without any hitches. Endpoints will follow JSON standards while also providing robust security against common exploits such as SQL injection and XSS.
$500 USD em 7 dias
9,0
9,0

Hi There !! After reading your request, I found it to be rather intriguing. I can provide timely, high-quality assistance for your project as a senior full stack engineer. Let's talk further when we speak over the phone or chat. Awaiting for your positive response. Thanks christina
$465 USD em 7 dias
8,3
8,3

Hey there, I've read through what you need and you've already got three pieces - PHP admin dashboard, Kotlin user app, and Kotlin driver app. You just need the APIs to connect everything so they actually talk to each other. I've been working with PHP backends, Android apps, and API integrations for about 9 years now. Here's what I'd do: Build REST APIs in your existing PHP code for login, trip management, real-time updates, and whatever else the apps need. Hook everything into your MySQL database so when something happens in the user or driver app, it shows up instantly on the admin dashboard. Update both Kotlin apps to use the new APIs, handle responses properly, and work offline when there's no connection. Build signed test APKs for both apps so you can install them on your phone and see everything working. Give you a Postman collection with all the endpoints documented so you can update things later without me. Everything secured properly - no SQL injection, XSS, or other common stuff that breaks apps. Timeline: About 4-5 weeks for complete integration tested and ready. Deliverables: Working APIs connected to your database. Both Android apps updated and talking to the backend. Test APKs you can install. Admin dashboard showing live data. Postman docs and quick setup guide. I've done similar work connecting PHP backends to Android apps before - it's straightforward when you know what you're doing. Talk soon, Kamran.
$600 USD em 10 dias
8,5
8,5

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat, where I can also share relevant examples of my past work. I'm looking forward to hearing back from you! Best Regards, Divu.
$750 USD em 7 dias
8,1
8,1

⭐⭐⭐⭐⭐ Create Efficient REST APIs for Your PHP and Kotlin Apps ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for a skilled developer to integrate your PHP and Kotlin apps. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for API integrations. I will create clean, well-documented REST APIs for your PHP back-end, connect them to your databases, and integrate them into your Android apps efficiently. ➡️ Why Me? I can easily handle your API integration project as I have 5 years of experience in PHP, Kotlin, and MySQL. My expertise includes building secure endpoints, database management, and Android app updates. Additionally, I have a strong grip on RESTful best practices, ensuring your apps run smoothly and securely. ➡️ Let's have a quick chat to discuss your project in detail. I would love to show you samples of my previous work. Looking forward to it! ➡️ Skills & Experience: ✅ PHP Development ✅ Kotlin Programming ✅ MySQL Database Management ✅ RESTful API Design ✅ Android Studio ✅ Secure Authentication ✅ Trip Management Systems ✅ Real-time Data Updates ✅ API Documentation ✅ Error Handling ✅ JSON Standards ✅ APK Building Waiting for your response! Best Regards, Zohaib
$350 USD em 2 dias
7,7
7,7

With a wealth of experience under my belt, I assure you a seamless and secure integration between your existing PHP admin dashboard and the Kotlin-based user and driver apps. My knowledge of PHP and Kotlin, coupled with my understanding of best practices in API Development, API Integration, Mobile App Development, and MySQL is exactly what your project requires. I will extend or refactor your PHP code base to expose secure endpoints to handle authentication, trip management, real-time updates, and more. The success of this project hinges on the ability for all apps to operate as one coherent service. As such, I will configure the database schema so that any action performed by the user or driver app are instantly reflected in your admin dashboard. Moreover, given your emphasis on concise documentation, I will ensure every RESTful API endpoint created is well-documented in a Postman collection or similar tool. Working with me not only guarantees expertise but also a keen eye for design using Figma and Photoshop. This means that apart from building you signed test APKs for both apps that you can install and verify on real devices offering an excellent user experience and exceptional functionality is equally important to me. Let's connect and turn your project into a succès! With Regards! Nikhil
$500 USD em 7 dias
8,0
8,0

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$250 USD em 14 dias
8,0
8,0

Hi, I’m interested in learning more about your project. I’d start by reviewing the existing PHP backend, database schema, and both Kotlin apps to understand current gaps, then design clean REST APIs that act as a single source of truth. With a phased roadmap, core integrations can be completed quickly, followed by stabilization, testing, and documentation to ensure a smooth end-to-end flow. If you award me this project, I’d be happy to discuss it further and get started right away. Short Development → Deployment Road-Map: • Audit existing PHP code, MySQL schema, and Android app flows • Design and implement secure REST APIs (auth, trips, real-time updates) • Sync database actions across user app, driver app, and admin dashboard • Integrate APIs into both Kotlin apps with offline-safe handling • Build signed APKs, test full flows, and deliver Postman documentation I’m also interested in a long-term collaboration and future enhancements. For better feature understanding and accurate estimation, reviewing current app flows, database structure, and any reference API patterns together would help—can we discuss this further on chat? Best regards, Prakash.S
$599 USD em 7 dias
7,8
7,8

Hi, We’ve built similar multi-app systems where a PHP backend serves multiple mobile apps. For example, we developed a complete taxi solution with driver and rider apps, where the PHP backend handled everything from real-time driver-rider matching to payment processing. We can also enhance your existing PHP code to ensure it’s optimized and secure, rather than just adding new endpoints. We’ve worked extensively with PHP frameworks like Laravel and CodeIgniter, and we’re well-versed in REST API best practices. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best regards, Adil
$473,82 USD em 7 dias
7,3
7,3

Hello I have thoroughly reviewed your project description and am confident in my ability to assist you in completing it successfully. I believe it would be highly beneficial to delve deeper into the specifics of the job to determine the most effective way forward. I am open to scheduling an interview at your convenience, and I genuinely appreciate the chance to collaborate with you on this project. Your response is eagerly anticipated, and I'm excited about the prospect of working together. Thank you for considering my proposal. Looking forward to your prompt reply! Best regards Rekha!!!
$750 USD em 7 dias
7,8
7,8

Hi, I’ve carefully reviewed your project requirements for seamless API and dashboard integration between your PHP admin dashboard, Kotlin user app, and Kotlin driver app. With extensive experience in PHP REST API development, secure MySQL schema design, and Kotlin Android integration, I am confident in delivering clean, secure, and well-documented endpoints that sync your apps and dashboard in real time. I will refactor your PHP backend to expose secure and efficient endpoints for authentication, trip management, and real-time updates, ensuring the database schema supports immediate reflection of all app actions on the admin dashboard. I’ll also update both Kotlin apps for reliable offline handling and graceful API consumption and provide signed APKs for thorough testing. I’ll deliver a complete Postman collection with clear documentation for smooth future maintenance. Expect robust API security against SQL injection and XSS, and a flawless user experience aligning with your acceptance criteria. I propose completing this integration within 14 days. Let me know your preferred API authentication method and if you have specific testing devices for the APKs. What authentication mechanism do you currently use, and are you open to implementing token-based security like JWT? Also, do you require any specific real-time update technology, such as WebSockets or long polling? Best regards,
$600 USD em 14 dias
6,9
6,9

Hi I can connect your PHP admin dashboard, Kotlin user app, and Kotlin driver app by adding clean, secure REST APIs to the existing PHP backend and wiring everything correctly to MySQL. The main technical risk here is data consistency and race conditions (trip status, location updates, completion) causing the apps and dashboard to drift out of sync or overwrite each other. I’ll solve this with a normalized API layer using proper authentication, strict request validation, prepared statements, and consistent JSON schemas with correct HTTP status codes across all endpoints. For real-time behavior, I’ll implement an update mechanism that ensures the dashboard reflects trip changes quickly and reliably, with idempotent endpoints to prevent duplicate actions on retries. On Android, I’ll integrate the APIs using Retrofit/OkHttp, add resilient error handling, and implement offline-safe caching/queueing so the apps fail gracefully when connectivity drops. Security will be enforced end-to-end (token handling, input sanitization, rate limiting options, and protection against SQLi/XSS/CSRF where applicable). You’ll receive a Postman collection plus concise API docs and signed test APKs for both apps to validate login, trip lifecycle, tracking, and completion on real devices. Thanks, Hercules
$500 USD em 7 dias
6,9
6,9

Hi, This is exactly the kind of integration work I specialize in. I’ve handled multiple projects where PHP backends, MySQL databases, and Kotlin-based Android apps needed to be properly “glued together” with secure, well-structured REST APIs. How I’ll approach this - Refactor and extend your PHP backend to expose clean, secure REST endpoints (auth, trips, tracking, real-time updates) - Ensure MySQL schema + relationships keep admin, user, and driver data perfectly in sync - Generate signed test APKs for real-device verification - Deliver a Postman collection + concise API documentation for easy future maintenance Why I’m a good fit - Hands-on experience with PHP + MySQL + RESTful architecture - Strong Android expertise in Kotlin (Android Studio) - Security-first mindset (SQL injection, XSS, auth best practices) - Used to working on existing codebases without breaking flows I can move quickly, keep the implementation clean and documented, and make sure all three systems behave as a single, reliable platform. Happy to review your repositories and propose a clear timeline right away.
$500 USD em 7 dias
6,8
6,8

Hi there, I see you’re looking for a seamless integration of your PHP admin dashboard with your Kotlin-based user and driver apps. With extensive experience as a top California freelancer, I’ve successfully completed similar projects where I’ve built robust REST APIs, ensuring tight integration across platforms. I’m confident that I can enhance your existing codebases to facilitate real-time data reflection on your dashboard and maintain a smooth user experience in the mobile apps. I will extend your PHP backend to create secure endpoints for authentication, trip management, and more. Plus, I’ll ensure the database schema is optimized and that the Kotlin apps accurately consume the new APIs while maintaining functionality during offline scenarios. Upon completion, I’ll provide signed test APKs for your review along with concise API documentation to make future updates hassle-free. I’m ready to get started on this project immediately. Please feel free to reach out with any further information or clarifications you think might be helpful. What specific security measures do you prefer for the API endpoints to ensure data protection? Best regards,
$610 USD em 19 dias
6,4
6,4

Hello, I understand you’re looking for a developer who can act as the integration layer between your existing PHP admin dashboard, MySQL database, and two Kotlin-based Android applications, delivering a clean and reliable end-to-end system. I have strong experience building secure, well-structured REST APIs in PHP, integrating them with relational databases, and consuming them from Kotlin apps with robust error handling and offline-safe logic. I would refactor and extend your backend to expose standardized JSON endpoints for authentication, trip lifecycle management, and real-time state updates, ensuring every action taken in the user or driver app is instantly reflected in the admin dashboard. On the Android side, both Kotlin projects would be updated to consume the new APIs cleanly, handle edge cases gracefully, and remain stable under poor connectivity. Final delivery includes signed test APKs for both apps, a complete Postman collection, and concise documentation so the system is easy to maintain and extend. Thanks, Asif
$750 USD em 21 dias
6,5
6,5

Hello There!!! ⚜⭐⭐⭐⭐⚜(( Seamless API integration connecting PHP dashboard with Kotlin user and driver apps ))⚜⭐⭐⭐⭐⚜ Reading your brief, it is clear you already have strong foundations in place and are now looking for the missing glue that unifies everything into a reliable, real time system. The real challenge here is not just creating endpoints, but making sure data flows cleanly between the admin panel, user app, and driver app without breaking existing logic. Your goal is a secure PHP REST layer backed by MySQL that both Android apps can trust for authentication, trip lifecycle management, and live updates, while keeping the dashboard perfectly in sync. I bring hands on experience building PHP based REST APIs, integrating them with Kotlin apps, and designing database schemas that reflect instant state changes across platforms. My focus is always stability, clarity, and future proofing. Mini strategy: I would first audit existing local calls, map them to clean REST endpoints, secure them properly, then integrate Kotlin networking with graceful offline fallback and clear error handling. Three key features of this project: 1. Secure, well structured REST APIs with proper HTTP responses. 2. Real time trip reflection across apps and admin dashboard. 3. Signed test APKs and clear Postman documentation for easy validation. I would be glad to discuss your current code structure and timelines to move this forward smoothly. Warm Regards, Farhin B.
$256 USD em 10 dias
6,6
6,6

As a versatile software engineer, my expertise extends far beyond embedded systems and IoT to include precisely the kind of comprehensive Android app development and backend integration work that your project demands. I understand that tying together your PHP admin dashboard with your Kotlin-based user and driver apps involves a multitude of complexities, but I have the experience and skillset to navigate them seamlessly. Not only have I designed and built REST APIs before, but I've also created SQL databases from scratch, ensuring that actions within the apps instantly reflect on the admin dashboard—part of the specific scope of your project.
$750 USD em 7 dias
6,2
6,2

Hi there, I'm excited to help integrate your PHP admin dashboard with the Kotlin user and driver apps through clean, secure REST APIs. I understand you need real-time trip management syncing and seamless offline handling in the Android apps. - Refactor PHP backend exposing secure, well-documented RESTful endpoints for authentication, trip updates, and more. - Configure MySQL schema to sync all actions instantly between apps and dashboard. - Update Kotlin apps in Android Studio to consume APIs with graceful fallback offline. - Deliver signed test APKs for easy installation and verification on devices. - Provide clear Postman API docs and concise read-me for smooth future updates. **Skills:** ✅ REST API development & security — following best practices for authentication & data handling ✅ PHP backend & MySQL database schema design — for real-time synchronization ✅ Kotlin & Android Studio — integrating APIs and handling network fallbacks ✅ API documentation — Postman collections ✅ Mobile app testing — signed APK builds and verification **Certificates:** ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I'm ready to start and ensure your apps work flawlessly together with a comprehensive integration in 10 days. Could you share the existing PHP backend and database schema details to better understand the current structure? Thanks,
$650 USD em 10 dias
5,8
5,8

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