https://priyanshsinghal.com/blog Articles on full-stack engineering and GenAI systems by Priyansh Singhal. en-us Wed, 30 Sep 2026 00:00:00 GMT https://medium.com/data-science-collective/your-langgraph-node-runs-twice-after-interrupt-thats-by-design-99ad00fc48ef https://medium.com/data-science-collective/your-langgraph-node-runs-twice-after-interrupt-thats-by-design-99ad00fc48ef Wed, 30 Sep 2026 00:00:00 GMT Checkpoints are save points at super-step boundaries. Resume, durability and subgraph state all follow from that. AI LangGraph https://medium.com/data-science-collective/the-langchain-you-learned-in-2024-doesnt-exist-anymore-1e7b2d38584b https://medium.com/data-science-collective/the-langchain-you-learned-in-2024-doesnt-exist-anymore-1e7b2d38584b Wed, 23 Sep 2026 00:00:00 GMT LLMChain and its siblings moved to a legacy package. The new core is one function, create_agent, plus middleware. AI LangChain https://priyanshsinghal.com/blog/oryn-full-stack-ai-chatbot https://priyanshsinghal.com/blog/oryn-full-stack-ai-chatbot Sat, 06 Sep 2025 00:00:00 GMT How I built an intelligent conversational agent using modern JavaScript and OpenAI's API: architecture, streaming responses, and the tradeoffs that mattered. AI Full Stack https://priyanshsinghal.com/blog/deploy-django-heroku https://priyanshsinghal.com/blog/deploy-django-heroku Sun, 06 Sep 2020 00:00:00 GMT Step-by-step guide for deploying Python web apps to the cloud, from gunicorn config to static file handling. Django DevOps https://priyanshsinghal.com/blog/api-and-its-types https://priyanshsinghal.com/blog/api-and-its-types Thu, 14 May 2020 00:00:00 GMT Understanding application programming interfaces (REST, GraphQL, gRPC, WebSocket) and when to reach for each. Backend https://priyanshsinghal.com/blog/intro-modern-web-development https://priyanshsinghal.com/blog/intro-modern-web-development Thu, 07 May 2020 00:00:00 GMT Overview of contemporary web development practices and technologies: component models, build tools, deployment pipelines. Web Dev