Document Upload And Processing Pipeline

via “pdf file upload with client-side validation and progress tracking”

AI PDF chatbot agent built with LangChain & LangGraph

Unique: Combines client-side React state management with Next.js API streaming to provide real-time upload progress without external libraries. Integrates upload completion directly with the ingestion graph, triggering document processing immediately rather than requiring separate batch jobs.

vs others: Simpler than dedicated upload libraries (Dropzone, Uppy) because it leverages Next.js built-ins; more responsive than batch processing because ingestion starts immediately after upload.