Refinement and fixes of the Java project (Telegram Bot)
577 USD There is a working JAR + source code (the entire code is visible through Recaf). It needs to be quickly brought to a stable version.
Disable one of the internal verification modules (remove calls, make methods empty).
Translate the integration with the external API to the new endpoint (new key, search method, parsing).
Enhance the second API client:
Strict token verification during login.
Add headers (
application/json).Use absolute URLs.
Implement token refresh and retry request on errors.
Fix error handling in the Telegram module: on
401remove the bot from the pool and log once (without spamming).Fix text generation on the website (templates with variable substitution do not work).
Difficulty:
The tasks are straightforward, without changing the architecture.
An experienced Java developer will take approximately 1.5–2 hours.
Work format:
Corrections in the compiled code (Recaf) and recompile the JAR.
Source code is available.
You can work directly with the project without Recaf, but then you will have to transfer the missing functions.
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5 days577 USD
125 5 days577 USDHello, I am ready to take on the improvement of your project. I have experience working with Java, I developed a web application for my client, added a lightweight front end, and developed the entire back end, connected the project to databases, and the client was completely satisfied. I completed Java Developer courses where I learned Java Spring Framework, Java core, HTML, CSS, JavaScript.
I would be happy to collaborate!
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2 days577 USD
123 2 days577 USDDavit Minasyan
Full Stack Developer (React + Spring Boot) I am a Full Stack Developer specializing in creating modern, scalable web applications using React on the frontend and Java Spring Boot on the backend. I have practical experience working with MongoDB and PostgreSQL for data management, as well as deploying applications using Docker, AWS (EC2, S3, Route 53), Render, Vercel, and Netlify.
My projects include a platform for a museum with event management, exhibitions, artifacts, and blogs, as well as e-commerce solutions with product catalogs, order management, payments (PayPal), and delivery integration. I focus on creating robust architectures, smooth user experiences, and clean interfaces using TypeScript, Redux, Tailwind CSS, Bootstrap, and Material UI.
I am passionate about creating meaningful digital products, integrating third-party APIs, and working at all levels of the stack—from backend services and authentication/authorization to frontend design and deployment pipelines.
🌐 Portfolio:
https://portfolio-davids-projects-cd2a86c5.vercel.app/
🖼️ Project:
https://museum-front.vercel.app/
https://sevan-front.vercel.app
…
💻 GitHub:
https://github.com/dminasian1999
💼 LinkedIn:
https://linkedin.com/in/davit-minasyan-48701736b
I believe that working here will allow me to grow professionally while contributing to meaningful projects that have a real impact. I am particularly excited about the opportunity to collaborate with skilled colleagues, follow best practices, and create clean, scalable solutions that enhance the user experience.
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8 days577 USD
477 2 2 8 days577 USDHello, German!
I have experience working with Java and API integration. I can quickly finalize the project: disable unnecessary validation modules, fix methods, and transfer the integration to the new API.
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7 days762 USD
396 7 days762 USDHello!
My name is Alexey, I represent a group of developers – NC-1.
For more than five years, we have been creating websites, mobile applications, online stores, ERP/CRM systems, and other e-commerce products.
In our team, there is a specialist with the necessary experience and knowledge for you. The hourly rate is 14 eur.
Stack: Java, JavaScript, C, C++, HTML, CSS, SQL, MySQL
Cases - https://1drv.ms/b/c/b7a0d31a9dae1bc5/EeH6JPdpBbpKtrkA1zFQOIMBAmqUcd_Ptx5tt5p9hBNG-g?e=wXDGHh
Portfolio – https://nc-one.com/case-studies
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5 days577 USD
3260 9 1 1 5 days577 USDThis is an interesting proposal that perfectly matches my technical specialization. I have experience working with complex logic, API integration, and debugging existing code, which is critical for this Java project.
I fully understand the task: you need a quick and accurate fix to stabilize the operation of the Telegram bot, update API integrations, and enhance error handling reliability.
Proposal and Readiness for the Task
I am ready to promptly take on this project and complete all the listed tasks:
1. Code Update and Optimization (Telegram Bot)
• Disable internal module: I will quickly eliminate calls to the specified validation module and make its methods empty as required.
• Integrate new API: I will transition the bot to the new endpoint, updating the logic of the search and data parsing method according to the new documentation.
2. Refinement of Second API Client (Reliability)
• Strict token validation: I will implement strict token validation during login.
… • Headers and URL: I will add the necessary headers (application/json) and ensure the use of absolute URLs to enhance the reliability of requests.
• Token refresh and request retry: I will implement a mechanism for automatic token refresh and request retry in case of errors (e.g., 401/403).
3. Error Handling Fixes
• Telegram module: I will fix the handling of 401 Unauthorized errors so that the bot is removed from the pool and the error is logged only once, preventing log spam.
• Text generation: I will correct the logic of templates on the site to ensure that variable substitution works correctly.
Work Format and Assessment
• Complexity: I confirm that the tasks are straightforward and do not require architectural changes.
• Execution time: Since the tasks are estimated by you at approximately 1.5–2 hours of pure time for an experienced Java developer, I guarantee the fastest possible execution after gaining access and source codes.
I am ready to work both using Recaf (edits in compiled code) and directly with the source files, depending on which path will be faster for the final assembly of a stable JAR.
Please provide access to the JAR and source codes to start working. I am ready to begin immediately.
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1 day577 USD
2930 8 0 1 1 day577 USDHello!
I am ready to take on the task and make all the edits this evening. After making the changes, I will rebuild the JAR and send you the finished working version.
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7 days577 USD
1616 8 0 7 days577 USDHello,
I am a developer in the field of AI/ML & BOT DEV. I can complete your project. Write to me, and we will discuss.
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4 days565 USD
358 1 0 4 days565 USDI can start, I have quite a bit of experience, only on the matter, I always take the deadline with a buffer.
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3 days577 USD
3553 90 0 1 3 days577 USDHello, Herman.
I am ready to start working on your project.
Please provide access to the code.
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3 days577 USD
1398 36 0 3 days577 USDGood day, I am interested in your project. I have extensive experience in Java development and bot development. I would like to discuss the details in private. I hope for cooperation!
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1 day577 USD
1470 6 0 1 1 day577 USDReady to take your project into work, we have extensive experience with Python and Java, we will perform the work with quality.
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1 day692 USD
142 1 day692 USDGood day, I do not have experience working with Java, but I have done a similar project in Python. The process may take longer than you described. But I guarantee the quality.
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Зі свого досвіду можу сказати, що зазвичай якщо замоник пише "та тут роботи на 1.5-2" години - то з такиими краще справу не мати, дуже геморно.
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