Dev.to
5/9/2026

🚀 From Agents to Data Intelligence: Load Files, Scrape Web & Analyze with LangChain
Short summary
Tutorial on using LangChain to load and analyze data from files, CSVs, and web URLs, progressing to vector database-based semantic search for efficiency. Includes practical stock research assistant example analyzing Tata Motors with Indian financial data sources.
- •Load and process text files, CSVs, and web content with LangChain loaders
- •Scale data analysis with vector databases (Chroma) for efficient semantic search
- •Real-world example: build a stock research assistant analyzing Tata Motors
Generated with AI, which can make mistakes.
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