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Original rewrites on React, Node.js, TypeScript and AI — practical notes from the same engineering practice behind our operator software. Article bodies are in English.
Tagged: chatbot
Flutter AI Chat App with Gemini: Streaming Replies and Riverpod
Build a Flutter chatbot on the Gemini API: streaming responses, ChatSession memory, Riverpod state, safe API key handling, common mistakes and practical tips.
1604 wordsRead articleA Portfolio Chatbot Built to Say "I Don't Know" Instead of Guessing
How a portfolio chatbot stays honest: a locked honesty dial, five handwritten notes in the prompt instead of RAG, and a fixed refusal line that doubles as a gap detector.
1768 wordsRead articleGiving a LangChain Chatbot Conversation History With Messages
Build a simple chatbot by passing earlier messages back to the model with MessagesPlaceholder, and see why history is not the same thing as built-in model memory.
1268 wordsRead articleSpring AI vs LangChain4j: Setup, First Endpoint and Design Style
Compare Spring AI and LangChain4j on architecture, Spring Boot starters, configuration and a first REST chat endpoint, and learn which style suits your team.
1283 wordsRead articleA Policy Q&A Chatbot That Cites Its Sources Instead of Guessing
How a RAG chatbot built on LangChain, pgvector and Express answers citizen questions from official documents, with citations and a confidence threshold.
1144 wordsRead article
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