Refinement and fixes of the Java project (Telegram Bot)

Budget: 500 EUR Deadline: 5 days

This 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. Expand

Budget: 500 EUR Deadline: 5 days

Hello, 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!

Budget: 500 EUR Deadline: 2 days

Davit 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. Expand

Budget: 500 EUR Deadline: 8 days

Hello, 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.

Budget: 660 EUR Deadline: 7 days

Hello!
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

Budget: 500 EUR Deadline: 1 day

Hello!
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.

Budget: 500 EUR Deadline: 7 days

Hello,

I am a developer in the field of AI/ML & BOT DEV. I can complete your project. Write to me, and we will discuss.

Budget: 490 EUR Deadline: 4 days

I can start, I have quite a bit of experience, only on the matter, I always take the deadline with a buffer.

Budget: 500 EUR Deadline: 3 days

Hello, Herman.
I am ready to start working on your project.
Please provide access to the code.

Budget: 500 EUR Deadline: 3 days

Good 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!

Budget: 500 EUR Deadline: 1 day

Ready to take your project into work, we have extensive experience with Python and Java, we will perform the work with quality.

Budget: 600 EUR Deadline: 1 day

Good 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.