The latest articles on DEV Community by Микола Бондар (@koliabondar). https://dev.to/koliabondar https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4136068%2F6ebd5aec-4cfd-4ec9-a45d-3ace252f34e2.jpg https://dev.to/koliabondar en Микола Бондар Wed, 28 Oct 2026 12:02:07 +0000 https://dev.to/koliabondar/-1pba https://dev.to/koliabondar/-1pba <div class="ltag__link--embedded"> <div class="crayons-story "> <a href="https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp" class="crayons-story__hidden-navigation-link">Just dropped V2 of my AI-Powered Music Engine! 🚀🎵</a> <div class="crayons-story__body crayons-story__body-full_post"> <div class="crayons-story__top"> <div class="crayons-story__meta"> <div class="crayons-story__author-pic"> <a href="/koliabondar" class="crayons-avatar crayons-avatar--l "> <img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4136068%2F6ebd5aec-4cfd-4ec9-a45d-3ace252f34e2.jpg" alt="koliabondar profile" class="crayons-avatar__image"> </a> </div> <div> <div> <a href="/koliabondar" class="crayons-story__secondary fw-medium m:hidden"> Микола Бондар </a> <div class="profile-preview-card relative mb-4 s:mb-0 fw-medium hidden m:inline-block"> Микола Бондар <div id="story-author-preview-content-4934413" class="profile-preview-card__content crayons-dropdown branded-7 p-4 pt-0"> <div class="gap-4 grid"> <div class="-mt-4"> <a href="/koliabondar" class="flex"> <span class="crayons-avatar crayons-avatar--xl mr-2 shrink-0"> <img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4136068%2F6ebd5aec-4cfd-4ec9-a45d-3ace252f34e2.jpg" class="crayons-avatar__image" alt=""> </span> <span class="crayons-link crayons-subtitle-2 mt-5">Микола Бондар</span> </a> </div> <div class="print-hidden"> Follow </div> <div class="author-preview-metadata-container"></div> </div> </div> </div> </div> <a href="https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp" class="crayons-story__tertiary fs-xs"><time>Oct 28</time><span class="time-ago-indicator-initial-placeholder"></span></a> </div> </div> </div> <div class="crayons-story__indention"> <h2 class="crayons-story__title crayons-story__title-full_post"> <a href="https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp" id="article-link-4934413"> Just dropped V2 of my AI-Powered Music Engine! 🚀🎵 </a> </h2> <div class="crayons-story__tags"> <a class="crayons-tag crayons-tag--monochrome " href="/t/webdev"><span class="crayons-tag__prefix">#</span>webdev</a> <a class="crayons-tag crayons-tag--monochrome " href="/t/ai"><span class="crayons-tag__prefix">#</span>ai</a> <a class="crayons-tag crayons-tag--monochrome " href="/t/python"><span class="crayons-tag__prefix">#</span>python</a> <a class="crayons-tag crayons-tag--monochrome " href="/t/saas"><span class="crayons-tag__prefix">#</span>saas</a> </div> <div class="crayons-story__bottom"> <div class="crayons-story__details"> <a href="https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp" class="crayons-btn crayons-btn--s crayons-btn--ghost crayons-btn--icon-left"> <div class="multiple_reactions_aggregate"> <span class="multiple_reactions_icons_container"> <span class="crayons_icon_container"> <img src="https://assets.dev.to/assets/sparkle-heart-5f9bee3767e18deb1bb725290cb151c25234768a0e9a2bd39370c382d02920cf.svg" width="18" height="18"> </span> </span> <span class="aggregate_reactions_counter">1<span class="hidden s:inline">&nbsp;reaction</span></span> </div> </a> <a href="https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp#comments" class="crayons-btn crayons-btn--s crayons-btn--ghost crayons-btn--icon-left flex items-center"> <span class="hidden s:inline">Add&nbsp;Comment</span> </a> </div> <div class="crayons-story__save"> <small class="crayons-story__tertiary fs-xs mr-2"> 1 min read </small> </div> </div> </div> </div> </div> </div> ai showdev software Микола Бондар Wed, 28 Oct 2026 12:01:43 +0000 https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp https://dev.to/koliabondar/just-dropped-v2-of-my-ai-powered-music-engine-20lp <p>What started as a simple Python backend is now a full-stack premium product:<br> ✨ Dynamic Glassmorphism UI (Background colors adapt to album covers!)<br> 🌍 Global Apple Music Search (Multi-region workaround, NO API keys needed)<br> 🤖 Agentic AI Chat built-in<br> 💿 Dynamic Album Rater &amp; Collection Manager</p> <p>Fully containerized with Docker. Perfect SaaS template or portfolio booster! 💻🔥</p> <p>Check it out here 👇<br> <a href="https://koliabondar.gumroad.com/l/ai-music-engine-v2" rel="noopener noreferrer">https://koliabondar.gumroad.com/l/ai-music-engine-v2</a></p> webdev ai python saas Микола Бондар Mon, 21 Sep 2026 16:02:09 +0000 https://dev.to/koliabondar/how-i-built-an-agentic-ai-ui-with-react-and-gemini-api-and-handled-the-503-overload-error-3mmn https://dev.to/koliabondar/how-i-built-an-agentic-ai-ui-with-react-and-gemini-api-and-handled-the-503-overload-error-3mmn <p>Building a wrapper around an AI API is easy. Building an "Agentic UI" where the AI actually controls the interface is much harder.<br> Recently, I built a full-stack Music Recommendation Engine (FastAPI + React). Instead of just chatting, the Gemini AI can autonomously trigger music searches in the UI based on user prompts.</p> <p>The Problem: AI Server Overloads<br> When using the free tier of Google's Gemini 3.6 API, you will inevitably hit the 503 Service Unavailable error during high demand. If you don't handle this, your backend crashes and the frontend shows a blank screen.</p> <p>The Solution: Graceful Error Handling<br> I wrapped the Gemini chat call in a try...except block in FastAPI to intercept this specific error and send a clean, user-friendly JSON response to React.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F62aizs7gk7ftrecpm6pb.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F62aizs7gk7ftrecpm6pb.png" alt=" " width="799" height="351"></a></p> <p>Then, on the frontend, React simply displays this as a normal chat message from the AI, keeping the app alive:</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F0obxottfkjuxxprm3u2h.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F0obxottfkjuxxprm3u2h.png" alt=" " width="799" height="481"></a></p> <p>Conclusion &amp; Source Code<br> Handling third-party API failures gracefully is crucial for any production app. This simple pattern keeps users informed without breaking the experience.</p> <p>🚀 To save time, you can get the complete, production-ready source code of this project (including the Glassmorphism UI, Docker setup, and hybrid search) on my Gumroad: <a href="https://koliabondar.gumroad.com/l/wepfo" rel="noopener noreferrer">https://koliabondar.gumroad.com/l/wepfo</a></p> ai programming javascript python