Java REST API Bug Fixes

@abhayk49

Hi, I’m a Java backend developer with strong experience in REST API debugging and development, and I can quickly fix your existing issues and add new endpoints. ✅ Relevant Expertise ✅ Java 17 & Spring Boot / JAX-RS ✅ REST API debugging (GET/POST issues) ✅ JSON schema & HTTP status handling ✅ Maven & Git workflows ✅ Unit & integration testing (JUnit) ? How I Can Help • Diagnose and fix REST layer, service, and model issues • Add clean, well-structured GET/POST endpoints • Ensure correct JSON responses and HTTP status codes • Provide tests to validate each fix/end-to-end flow ✔ Deliverables ✔ Working APIs with resolved bugs ✔ New endpoints as required ✔ Passing tests and clean build ✔ Clear PR with changes I’m comfortable with both task-based (₹1,200/bug) or hourly work, and can deliver quick turnaround on the first set. Ready to start immediately. Best regards, Abhay

@sgodeveloper

Hi, This is exactly the kind of work I handle regularly—debugging REST APIs and stabilizing backend systems without breaking existing functionality. I have solid experience with Java 17, Spring Boot/JAX-RS style architectures, and fixing legacy API issues across controller, service, and model layers. I understand how small inconsistencies in JSON structure, validation, or status codes can break device communication—so I focus on precise, reliable fixes. How I’ll help you: Bug Fixing Diagnose issues in REST endpoints, services, and data models Fix GET/POST failures with proper request handling and validation Ensure correct HTTP status codes and consistent JSON responses New Endpoints Add clean, well-structured GET & POST APIs Follow existing architecture and naming conventions Keep everything extensible and easy to maintain Testing Unit or integration tests for each fix and new endpoint Ensure all flows work end-to-end before delivery Code Quality Clean, readable code with minimal disruption to your current system No unnecessary refactoring—only targeted, safe improvements

@Vinay7758

As a seasoned Java developer with 5+ years of experience, I have an in-depth understanding of the intricacies of RESTful API development and the Java 17 stack. I am proficient with Git and Maven as well, which will ensure smooth collaboration while working on your project. Having worked on numerous backend projects in various domains, including data-driven platforms, I understand the importance of clean code that is easy to maintain and deploy for seamless APIs - a mission critical aspect for your project. With attention to detail being my second nature, I'll ensure all responses follow your JSON schema standards and return the correct HTTP status codes. As part of my standard workflow, I don't consider my work complete without thorough testing - you can expect robust unit or integration tests from me that fully demonstrate every fix or new endpoint function. Choosing me means entrusting your project to a professional who not only understands your business requirements quickly but also focuses on delivering stable, production-ready solutions rather than quick fixes. Rest assured – I'm all about building systems that run smoothly today and scale efficiently tomorrow. Let's collaborate!

@gloifytech

Hi, Your requirement is clear and well structured. Fixing REST issues while maintaining clean contracts and stability is something I handle regularly. I can quickly diagnose problems across the REST layer, service logic, and model classes to identify why current GET and POST calls are failing. Along with resolving bugs, I will implement new endpoints that strictly follow your existing JSON schema and return accurate HTTP status codes. The focus will be on writing clean, maintainable code aligned with Java 17 and Maven standards. I will also include concise unit or integration tests to validate each fix and endpoint end to end, ensuring smooth verification and zero regression. I am comfortable working with Spring Boot and JAX RS patterns, so adapting to your current setup will be seamless. Each change will be delivered through structured pull requests that build cleanly and pass all tests. I am open to task based tracking as it aligns well with your per issue model, and I can start immediately with a quick turnaround for the first set of bugs. Looking forward to working together.

@gupta07ankit

I can help get your REST backend stable again and add the endpoints you need. I spent a good amount of time working with Java 17, Maven projects, and REST API so cleaning up API layers is something , i am comfortable with. I can start by going through the codebase, reproducing the failing GET/POST calls, and fixing the root causes. Expected Timeframe: Initial review and first batch of fixes: 1 to 2 days after getting access . If you can share repo access and a list of the current issues, I can jump in right awayto diagnose and tackle the problems. I plan to resolve each bug methodically, adhering to your JSON schema and returning the correct HTTP status codes for consistency.

@amittripathi4

I’ve worked extensively with Spring Boot and REST APIs, and I’m comfortable debugging legacy issues as well as adding clean, well-structured endpoints. For your project, I can quickly diagnose the current GET/POST failures—whether they’re in the controller layer, service logic, or model mapping—and fix them while keeping your existing JSON schema and response standards intact. I’ll also add new endpoints following best practices (proper HTTP methods, status codes, validation, and clear structure). My approach: Debug and isolate issues in controllers, services, or data models Fix API contract issues (request/response, serialization, status codes) Add new GET/POST endpoints with clean, maintainable code Ensure everything builds cleanly with Maven and passes all tests I’m comfortable working with Java 17, Maven, and typical REST patterns (Spring Boot), so I can get started immediately. I’m fine with task-based payment (₹1,200 per fix/endpoint), as it aligns well with clear deliverables. I can review the first set of bugs and provide fixes within a short turnaround (likely within 1–2 days depending on complexity). If you can share the repo or current issues, I can begin with a quick analysis and start resolving them right away. Looking forward to working with you.

@shivamstm01

With over nine years of experience in building scalable web applications and enterprise systems using Java, I am confident that I can diagnose and fix the existing issues in your Java REST API effectively and efficiently. Having worked extensively with Java 17, Git, Maven, and REST frameworks like Spring Boot and JAX-RS, your stack seems right up my alley, ensuring a seamless integration into your project. As a skilled Full Stack Developer and Development Team Lead, I bring more than just troubleshooitng skills to the table — I offer an end-to-end understanding of complex systems. This means that not only can I identify and resolve issues in your REST layer, services or related model classes but also build clean, well-documented new endpoints without breaking existing functionality. Lastly, with an eye for detail and an understanding of the importance of delivering high-quality solutions, I am dedicated to ensuring that our APIs adhere to your current JSON schema and return the correct HTTP status codes. I will provide you with precise unit or integration tests that guarantee each fix or new endpoint is working optimally. All in all, choosing me as the freelancer for this project guarantees timely bug fixes realised through efficient problem-solving methodologies with detailed documentation, making me a reliable choice for you!

@oleksandr082

Hello, You need a Java developer to fix existing REST issues and add new GET/POST endpoints so your devices can push and pull data reliably. I’ll ensure all responses match your JSON schema, return proper HTTP codes, and that fixes integrate cleanly with your current backend. Ill debug the REST layer, services, and model classes, then implement new endpoints with clear documentation and unit/integration tests. Each fix or endpoint will be verified manually and via automated tests to guarantee stability and correctness. I’m ready to start immediately and can work task-based or hourly, delivering accurate, tested endpoints quickly. Looking forward to your reply and the chance to get started. Best Regard

@bhagwatij

Hi there, My proposal is to the point. I do not write lengthy ones unless there is a questionnaire in the post. I am a seasoned Java/Spring Eco system developer and would be happy to help you with this effort. This is right up my ally and I would be happy to wrap this up for you just as expected at your end. An hourly rate of Rs 700/ works for me and if you think my profile suits your needs lets discuss further. Thanks, bhagawathi

@dimisv

I specialize in Java backend development with strong hands-on experience in Spring Boot and JAX-RS REST APIs. I'll start with a thorough diagnostic pass over your existing REST layer, service classes, and models to pinpoint the root causes of the broken GET and POST calls — whether it's bad status codes, serialization mismatches, or routing issues. Every fix will conform to your existing JSON schema, return correct HTTP status codes, and come with focused JUnit 5 unit/integration tests confirming each fix end-to-end. New endpoints will follow your existing conventions with clean Javadoc and no breaking changes. I'm proposing task-based billing at ₹1,200 per confirmed fix or new endpoint. Before starting, I'll need repository access and a brief summary of the known broken behaviors so I can scope accurately. Estimated turnaround for the first batch of fixes and a clean PR is 2–3 business days. Ready to start immediately.

@indreshpnk

Hello, I understand you need support for a Java-based REST API backend where legacy issues are breaking GET/POST calls and new endpoints need to be added for reliable sensor/device data handling. The goal is to deliver a stable, well-documented, and production-ready REST API with proper fixes and enhancements. Here’s what I can provide: * Debug and fix REST layer, service, and model issues affecting existing endpoints * Add new clean GET/POST endpoints with proper JSON schema compliance * Ensure correct HTTP status codes and implement unit/integration tests for validation I bring over 4+ years of experience in Java, Spring Boot, REST API development, MySQL, and backend systems, with strong focus on building scalable and maintainable APIs. I have worked on debugging complex backend issues, enhancing legacy systems, and delivering production-grade REST services with proper testing and documentation. Just to clarify a few things: * Do you already have existing test cases, or should I create them from scratch? * What is your expected timeline for resolving the first batch of bugs? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha

@gld6

Subject: Senior Java Developer | Spring Boot & JUnit Expert | Available Now Proposal Content: Hello! I saw your posting for the Java REST API Bug Fixes and I believe my skillset is a perfect match. I have extensive experience in Java 17, Spring Boot, and handling data-heavy applications (similar to your sensor data context). Why hire me? Architecture Focused: I don't just patch code; I ensure the fix fits your architecture. I am familiar with the Controller-Service-Repository pattern and DTO validation. Testing First: I see you require high-quality tests. I will deliver green builds with comprehensive test coverage for every endpoint I work on. Git & Maven Pro: I am comfortable working with Pull Requests and resolving merge conflicts professionally. I am available to work on an hourly basis or discuss the fixed-price per bug model. I can start immediately and help you clear your backlog of issues. Looking forward to hearing from you.