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I have a live Node.js backend that exposes a REST API. One endpoint is misbehaving and I need it fixed fast. The entire codebase is already in place; I simply need the root cause identified and a clean, well-commented patch applied that restores the endpoint to full, predictable functionality. No new features—just squash the bug and keep the existing behaviour intact everywhere else. After we start, I’ll give you: • Access to the repo (Git). • A concise description of the failing request/response cycle and the expected outcome. • Any relevant logs I’ve captured so far. You’ll give me: • The corrected code committed back to the same repo. • A brief summary of the changes and why they work. • Proof it’s fixed—either passing unit/integration tests or a reproducible demo call. Please be comfortable debugging asynchronous Node.js code, middleware stacks, and typical REST patterns. I’m aiming for a quick turnaround and a rock-solid fix that won’t introduce regressions.
Proje No: 40075472
133 teklifler
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Hi there, I hope you're having a great day! I'm open to taking a brief test to demonstrate my technical skills. I’m Slava, a senior full-stack developer with over 10 years of experience with Node.js, REST APIs, MongoDB, and Git-based workflows. This task is of low-to-medium difficulty, but requires sharp attention to asynchronous flows, middleware order, and edge-case handling. You’ll provide repo access, failing request details, and logs, and I understand that. I will identify the root cause, apply a clean, well-commented fix, commit directly to the repository, and prove correctness via tests or a reproducible API call without altering existing behavior. Key challenges include tracing asynchronous execution, ensuring middleware consistency, and avoiding regressions. Do you have a preferred Node.js version, test framework, or deployment setup? After implementing the fix, I can assist with stability hardening, monitoring, or improving test coverage, if desired. I am flexible and will adapt to your precise budget and timeline. I look forward to discussing the details and starting the work. All the best, Veaceslav S.
$50 USD 2 gün içinde
2,4
2,4
133 freelancer bu proje için ortalama $137 USD teklif veriyor

As a seasoned software developer and Node.js expert, I possess a unique combination of skills and experience well-suited to rectify your REST API bug at lightning speed. My proficiency in JavaScript, coupled with my extensive knowledge of Node.js and NoSQL Couch & Mongo, positions me perfectly to navigate and debug the complex asynchronous codebase entailed in this task effectively. Centrally, I pride myself on delivering clean, concise, and well-commented code that provides practical solutions without introducing unnecessary regressions. This is fueled by my innate ability to identify root causes swiftly. Furthermore, my experience in working with middleware stacks and understanding typical REST patterns would ensure no disruption to current functionalities while fixing the specific endpoint that's causing trouble. Lastly, as I relish solving complex puzzles under pressing timelines, your swift turnaround need will be treated with utmost priority. I will meticulously analyze any relevant logs provided and employ tried-and-true debugging techniques to restore your endpoint's full and predictable functionality. You can also expect me to furnish a detailed summation of the changes implemented alongside its justifications for your future reference. Emphasizing quality and client satisfaction in all undertakings - let my work speak for itself. Choose me now for a comprehensive-fix within the blink of an eye!
$200 USD 7 gün içinde
9,4
9,4

Let me fix that bug on your node.js REST API. You can rely on my experience troubleshooting and improving backend (and frontend) of web applications to carry out the task successfully. Let me know if you'd like me to help.
$100 USD 3 gün içinde
7,1
7,1

Hello, We understand you're facing an urgent issue with a misbehaving REST API endpoint in your Node.js backend. Our team at A2 Design has extensive experience in quickly identifying and fixing bugs in asynchronous Node.js applications, ensuring existing functionality remains intact. Our expertise includes debugging complex middleware stacks and implementing clean, well-commented patches that restore full operational capacity. We’re confident in our ability to deliver a robust solution swiftly, supported by our proven track record in developing scalable platforms and successful marketplaces. For instance, we improved performance and reliability in systems similar to yours, optimizing backend processes for high user volumes on our project with MadPaws, madpaws.com.au. Our collaborative work style ensures you will receive a timely update with the corrected code, a summary of changes, and solid proof of functionality restored. Let’s connect to discuss how we can efficiently resolve your API issues and keep your project on track! Looking forward to your response.
$100 USD 1 gün içinde
6,9
6,9

Dear Client, As a seasoned developer with a specific expertise in Node.js and sophisticated debugging, I am eager to lend my skills to quickly squash the bug that's plaguing your endpoint. With over 10 years of honing my craft, I have earned the title of being your go-to rescuer for quick resolution without compromising quality or introducing potential regressions. One of our pivotal strengths at WellSpring Infotech is not only fixing problems but restoring full, predictable functionality throughout the entire codebase without changing the existing behavior. I guarantee that with your detailed information and access to the Git repo, I will identify the root cause promptly, provide well commented and clean patches, along with a brief summary of the changes made and their impact. Moreover, my in-depth experience with asynchronous Node.js code, middleware stacks, REST patterns as well as NoSQL databases gives me an advantageous edge in troubleshooting and restoring stability within such systems. Trust me to surgically eliminate this bug so you can enjoy seamless operations across your Node.js backend!! Thank you!!!
$250 USD 7 gün içinde
6,9
6,9

With over 8 years of experience as a Fullstack and Multi-solution developer, I am confident that I possess the skillset necessary to identify and rectify the misbehaving endpoint in your Node.js backend holding your REST API. I have extensive experience handling asynchronous Node.js code, middleware stacks, and typical REST patterns. My experience extends to seamless integration of various Payment gateway APIs—similar in nature to fixing bugs like yours without regressions. I understand the urgency of this issue and can assure you of a swift resolution without compromising on quality. Upon completion, I will deliver clean, well-commented code that not only addresses the root cause but also maintains the expected behavior everywhere else in your application. My proficiency in using Git for version control ensures that you'll receive the corrected code, along with an explanatory summary for each change made. Lastly, my approach is grounded in effective communication- I will keep you updated throughout the process, provide daily support if needed, and furnish thorough documentation for your reference even after project delivery. Rely on my expertise to restore your endpoint to its full functionality and get you back on track. Let's discuss how I can solve this challenge better together. Contact me at your earliest convenience.
$150 USD 1 gün içinde
6,6
6,6

Hello, Let me fix Node.js REST Bug. I understand you have a critical Node.js REST API endpoint that is misbehaving and requires a swift, reliable fix. My approach will be to thoroughly debug the asynchronous Node.js code, middleware, and REST patterns to identify the root cause of the issue and apply a clean, well-commented patch to restore the endpoint's functionality without introducing regressions. With my experience in Node.js debugging and REST API development, I am confident in my ability to quickly diagnose and resolve this problem. To ensure I can provide the most accurate estimate, could you please specify if there are any particular patterns or libraries within the middleware stack that are commonly complex or prone to issues in your codebase? Regards, Muhammad Azeem
$100 USD 2 gün içinde
6,4
6,4

I have strong experience debugging and fixing production Node.js REST APIs with asynchronous flows and complex middleware stacks. I regularly identify root causes quickly by tracing request lifecycles, logs, and edge cases without changing existing behavior. I’ve delivered clean, well-commented patches that restore endpoint stability while avoiding regressions in live systems. I’m comfortable working directly in Git repos, validating fixes with tests or reproducible API calls, and documenting why the fix works. I focus on predictable behavior, proper error handling, and keeping the rest of the codebase untouched. I can start the project right now.
$200 USD 7 gün içinde
5,9
5,9

I'd like to help with fix nodejs bug for you, have very good experience with stack and glad to help you out. Ready to proceed once we confirm. Regards, Krunal Raval
$60 USD 1 gün içinde
6,1
6,1

Hi there, I'm experienced in debugging asynchronous Node.js code, middleware stacks, and REST patterns. I will swiftly identify and fix the misbehaving endpoint in your Node.js backend without disrupting the existing functionality. With access to the repo, I'll provide a clean, well-commented patch accompanied by a summary of the changes and their rationale. Let's aim for a quick turnaround and a rock-solid solution to avoid regressions. Looking forward to diving in and getting it resolved!
$100 USD 2 gün içinde
5,8
5,8

Hi, I can take this on and get the endpoint fixed quickly and cleanly. I’m experienced debugging Node.js REST APIs, including async/await issues, middleware chains, request lifecycle bugs, and edge-case race conditions. I focus on minimal, safe fixes that restore expected behavior without impacting the rest of the system. How I’ll handle it: Reproduce the issue using your logs and failing request/response flow Identify the root cause (async logic, middleware order, validation, DB calls, etc.) Apply a well-commented patch with no behavior changes elsewhere Commit directly to your repo with a clear message Verify the fix via tests or a reproducible demo API call What you’ll get: Corrected code committed to Git Short explanation of what broke and why the fix works Proof the endpoint is stable and predictable again Ready to start immediately once repo access and details are shared. Best Regards, Smartwinz
$200 USD 7 gün içinde
5,4
5,4

Hello, I can quickly help you fix the misbehaving REST API endpoint. After reviewing the provided repo and the issue description, I’ll identify the root cause of the problem and apply a clean patch that restores the endpoint’s full functionality. I’ll focus on debugging the asynchronous Node.js code, checking middleware stacks, and ensuring the existing behavior is preserved. Once the fix is applied, I’ll commit the corrected code, provide a concise summary of the changes, and demonstrate the fix with a passing unit or integration test. Looking forward to resolving this quickly! Best, Juan
$140 USD 7 gün içinde
5,5
5,5

Hello, I am a Web Developer with 15+ years of experience, specializing in building simple to complex websites, e-commerce, membership, and portal systems. I always deliver top-quality work and ensure client satisfaction. My core expertise is in Angular development, where I create scalable, secure, and high-performing web applications with clean architecture and responsive UI. I recently worked on OpenAI API integration for auto-generated articles, images, and social sharing, showing my ability to adopt the latest technologies. If you are looking for a dedicated Angular expert who combines experience with innovation, I’d be glad to work on your project.
$100 USD 7 gün içinde
5,5
5,5

As a highly skilled software engineer with over a decade of experience, I have mastered the craft of web development and have a deep understanding of coding and markup languages, including Node.js, which is at the heart of your project's issue. I must say that I'm quite adept at debugging asynchronous code, middleware stacks, and entire REST patterns such as the one we're dealing with here. My knowledge of AngularJS and JavaScript will be valuable in comprehending your existing codebase, identifying the root cause quickly, and applying a thorough patch. Another critical advantage I bring to the table is my swift turnaround time without compromising quality. With your Git access and descriptive information about the failing request/response cycle, I can get right to it and deliver the necessary fix—ensuring no new regressions are introduced—in record time. Moreover, having absorbed all relevant technical certificates through my Software Engineering career. In conclusion, my extensive experience in Node.js development combined with my ability to handle pressure and meet deadlines makes me the best fit for your project. Rest assured that if you entrust me with this task, you'll not only get a clean patch applied but also receive a succinct summary of changes explained clearly, backed up by proof of successful implementation. Let's get this job done efficiently together!
$140 USD 7 gün içinde
5,1
5,1

With over a decade of experience under my belt, I've fine-tuned my skills to accurately debug, fix, and enhance your Node.js REST API. I've worked extensively with asynchronous Node.js code, middleware stacks, and REST patterns; exactly the kind of expertise you're in need of. My track record on Git demonstrates my commitment to clean and well-commented code, combined with full communication to keep everyone on the same page. Furthermore, while my primary strength as a freelancer is my direct involvement in each project, I also have a solid network of certified developers and engineers if we need to bring in additional hands. We can tap into this resource if required for your project, ensuring we deliver a quick turnaround without compromising quality. Ultimately, your trust in me equates to scalable, secure, and maintainable code that will serve you long after this bug is squashed. Let's unite your goals and mine and put to rest this bug in no time while leaving the existing behavior unaffected.
$140 USD 7 gün içinde
5,3
5,3

Hello, I understand you need urgent assistance with a misbehaving endpoint in your Node.js REST API. My expertise in debugging asynchronous Node.js code and extensive experience with REST API development aligns perfectly with your project requirements. In my previous role, I successfully identified and resolved critical bugs in live applications, ensuring minimal downtime and preserving existing functionality. ✅My Plan: - Analyze the provided request/response cycle to pinpoint the issue. - Apply a clean, well-commented patch to restore functionality. - Commit corrected code back to the repo after rigorous testing. - Provide a summary of changes and proof of successful fixes. Could you please share the specific logs and details about the failing request/response cycle? Additionally, do you have any existing unit tests that we could leverage? Best regards, Hongqiang Chen
$160 USD 2 gün içinde
4,8
4,8

Hello Austin, I hope you are doing well. Your Quick Node.js REST bug task is right in my wheelhouse — I’ll quickly pinpoint the root cause in your live API and deliver a clean, well-commented patch that preserves existing behavior everywhere else. I’m a full-stack developer with strong Node.js, JavaScript, REST API, Git, and cloud experience, ready to debug asynchronous flows and middleware patterns. I’ll reproduce the failing request, trace it through the middleware stack, and apply a minimal fix with clear comments so future maintenance is obvious. No new features—just squash the bug and keep behavior intact. Deliverables: patched code committed to the same repo, a concise changelog, and proof of fix (reproducible call or tests). I’ll summarize the changes and why they work, and provide a quick demo or test verification. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan
$250 USD 3 gün içinde
5,0
5,0

** NO UPFRONT PAYMENT ** I can start immediately My name is Amarjeet Singh I have read your job I am very familiar & specialized in JavaScript NoSQL Couch & Mongo Debugging Node.js AngularJS Git API Development REST API I am very excited to see your job posting as I am confident that I am a perfect fit for what you are looking for I have checked out all your requirements regarding application development and we can help you. AM highly interested in your project, as I have worked on many similar projects. Apart from this i have make good use of APIs and web services. I have integrated API and web services. If you award me the project I'd be very happy to discuss this further and get started for you as soon as possible. You can see an example of one of those projects in my portfolio here: https://www.freelancer.in/u/fullstack0407
$100 USD 4 gün içinde
4,9
4,9

Hi, there. The most common pain with misbehaving Node.js endpoints is hidden async errors, middleware conflicts, or subtle data mishandling, the fix is careful debugging, tracing the request through the stack, and patching only what’s broken while keeping everything else intact. I’ve dealt with these kinds of issues many times, and when approached methodically, the endpoint can be fully restored without side effects. Your brief is perfect: no new features, just a clean, predictable fix. I’m a professional Node.js developer experienced with REST APIs, async flows, and middleware chains. I’ll identify the root cause, apply a well-commented patch, and test it thoroughly with either integration/unit tests or a reproducible demo to prove it’s working. The code will be committed cleanly to your repo, and I’ll provide a brief explanation of the fix so your team can understand and maintain it. Quick, reliable, and regression-free is my style. regards.
$100 USD 3 gün içinde
4,8
4,8

Hello there, I specialize in debugging and resolving issues in Node.js applications, and I'm ready to quickly address the bug in your REST API. With your detailed description and access to the repo, I'll efficiently identify the root cause and apply a well-documented patch to restore the endpoint's functionality while maintaining existing behavior across the application. Questions: • Do you have a preference for how you'd like the proof of fix presented, such as specific unit tests or a demo call? • Are there any middleware or specific modules involved that I should be aware of before diving in? I am comfortable with asynchronous Node.js code and middleware stacks, ensuring a swift and reliable resolution. My approach will guarantee no regressions and maintain the integrity of your API's performance. Looking forward to delivering a robust solution for your project. Thanks and best regards, Faizan
$90 USD 5 gün içinde
4,6
4,6

Hello Austin K., I’ve read your requirements thoroughly for Quick Node.js REST Bug Fix, And I’m sure I’m the right person to help you complete this successfully. I’m an experienced developer with many years of hands-on expertise in JavaScript, NoSQL Couch & Mongo, Debugging, Node.js, AngularJS, Git, API Development, REST API Please come over chat and discuss your requirement in a detailed way. Regards
$150 USD 7 gün içinde
4,3
4,3

Royal Oak, United States
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